TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

DSA improves spectrum utilization in three dimensions :frequency, location and time. It enables a network to opportunistically use a wide range of frequencies at points in time and space when and where they are authorized and available.  2, record 1, English, - dynamic%20spectrum%20access

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 CONT

L'accès dynamique au spectre (ADS) est une technique par laquelle un système radio s'adapte dynamiquement à l'environnement local du spectre radioélectrique afin de déterminer le spectre disponible à des endroits précis et à un moment précis.  1, record 1, French, - acc%C3%A8s%20dynamique%20au%20spectre

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

TV white space refers to the unused or underutilized portions of the radio frequency spectrum that were originally allocated for television broadcasting. These are the frequencies between television channels, which were left vacant to prevent interference between TV [television] stations.  6, record 2, English, - television%20white%20space

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

Les espaces blancs du spectre de télévision (TVWS) se réfèrent aux fréquences inutilisées dans les bandes de télédiffusion [...]  3, record 2, French, - espace%20blanc%20de%20t%C3%A9l%C3%A9vision

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

We present the modification of two ESA [European Space Agency] ground stations carried out in order to support the in-flight RF [Radio Frequency] validation of the Proximity Communication Equipment(PCE), part of the International Space Station(ISS). This subsystem plays a critical role during the docking of the Automated Transfer Vehicle(ATV), and has to be tested prior to each ATV launch, to ensure that the RF performance is as expected. For the check-out, an unmodulated signal is transmitted by the PCE during an ISS pass, and received by the two ground stations. Based on the strength of the received signal, the radiation characteristic of the complete PCE can be assessed, and compared with the nominal performance. The measurement process requires calibrating the receiving subsystem, including antenna, front-end and back-end equipment. The adopted calibration procedure, only relying on radio stars measurement, does not require the use of a calibrated source external to the ground station.  3, record 3, English, - proximity%20communication%20equipment

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 CONT

Le système de communications PCE (Proximity Communication Equipment) a été développé et intégré à Toulouse par EADS [European Aeronautic Defence Space] Astrium, dans le cadre du programme ATV [véhicule de transfert automatique] de l'Agence Spatiale Européenne, sous responsabilité d'EADS SPACE Transportation qui est le maître d'œuvre du développement et de la construction du segment spatial de l'ATV. Le PCE est destiné à assurer les communications de proximité pour les 30 derniers kilomètres de vol du futur véhicule cargo européen ATV à son approche de la Station spatiale internationale (ISS). [...] Le PCE est un sous-ensemble intégré. Il est constitué de deux chaînes de communications en bande S, entièrement redondantes. Il comprend deux transpondeurs à spectre étalé, deux équipements de gestion de protocoles CCSDS [Consultative Committee for Space Data Systems] et des équipements radio fréquence. Le PCE sera installé dans le module Zvezda de l'ISS et sera opérationnel durant la phase dite «de proximité» correspondant aux 30 derniers kilomètres du vol ATV et à l'exercice délicat de son arrimage à la Station. Ce rendez-vous orbital automatique représentera une première européenne. Parmi l'ensemble des données de commande et de contrôle qu'il transmettra dans le cadre de sa mission de communications, le PCE fournira à l'ATV les informations de position GPS [système mondial de localization] nécessaires à la navigation relative vers la Station spatiale internationale (ISS). À une distance de 500 m et jusqu'à l'arrimage, la navigation se poursuivra à l'aide d'instruments laser, d'abord avec un télégoniomètre puis avec un vidéomètre pour les phases finales.  3, record 3, French, - syst%C3%A8me%20de%20communication%20PCE

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

Other points of comparison were hull arrangements(retractable dome for Type 177, fixed dome for SQS–4), ease of maintenance, weight and space requirements, cost, availability, and the possibility of multiple frequency operation to avoid mutual interference between ships in a squadron.  1, record 4, English, - hull%20arrangement

Record 4,  Textual support,  French

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

CGSM is funded primarily by the Canadian Space Agency, and consists of networks of imagers, meridian scanning photometers, riometers, magnetometers, digital ionosondes, and High Frequency SuperDARN radars. The overarching objective of CGSM is to provide synoptic observations of the spatio-temporal evolution of the ionospheric thermodynamics and electrodynamics at auroral and polar latitudes over a large region of Canada.  3, record 5, English, - Canadian%20Geospace%20Monitoring

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 DEF

[...] réseau canadien d'instruments terrestres qui sont voués au suivi et à l'étude de l'activité géomagnétique circumterrestre et des phénomènes météorologiques dans l'espace.  3, record 5, French, - Programme%20canadien%20de%20surveillance%20g%C3%A9ospatiale

Record number: 5, Textual support number: 1 OBS

Il comprend des radars haute fréquence, des imageurs du ciel, des modèles informatiques et des portails de données répartis dans tout le pays.  3, record 5, French, - Programme%20canadien%20de%20surveillance%20g%C3%A9ospatiale

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 DEF

The height above the earth of a hypothetical horizontal surface in free space at which a wave of the given frequency would have to be reflected to travel from a given transmitter to a given receiver in the same time as by reflection from the actual ionospheric layer.  2, record 6, English, - virtual%20height

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 DEF

Altitude de la surface horizontale sur laquelle devrait se réfléchir, pour une fréquence donnée, une onde radioélectrique se propageant dans le vide, entre un émetteur et un récepteur donnés, pour que la durée du parcours soit la même que celle du parcours réel comprenant une réflexion dans l'ionosphère.  2, record 6, French, - hauteur%20virtuelle

Record 6,  Textual support,  Spanish

Record number: 6, Textual support number: 1 DEF

Altura de la superficie horizontal sobre la cual ha de reflejarse una onda radioeléctrica de frecuencia dada que se propaga en el vacío entre un emisor y un receptor, para que la duración del recorrido sea la misma que la del recorrido real que comprenda una reflexión en la ionosfera.  2, record 6, Spanish, - altura%20virtual

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 DEF

The change in the observed frequency of an acoustic or electromagnetic wave due to the relative motions of the source and the observer.  3, record 7, English, - Doppler%20effect

Record number: 7, Textual support number: 2 DEF

The phenomenon evidenced by the change in the observed frequency of a sound or radio wave caused by a time rate of change in the effective length of the path of travel between the source and the point of observation. [Definition standardized by NATO.]  4, record 7, English, - Doppler%20effect

Record number: 7, Textual support number: 1 CONT

The Doppler effect on sound waves is experienced in everyday life. When an ambulance passes us, the siren appears to change its note. As it approaches, the pitch is high. As it passes us, the pitch falls. The effect occurs with any type of waves, including light. In the case of sound the effect was described by Christian Andreas Doppler (1803-1853), while for the light it was observed by Armand Fizeau (1819-1896). That’s why sometimes the effect is called the Doppler-Fizeau effect.  5, record 7, English, - Doppler%20effect

Record number: 7, Textual support number: 2 CONT

Doppler effect. ... the theory was [also] found to hold true for radio waves ... The Doppler effect is the only means now known for detecting the motion of certain very distant objects. It is also invaluable in the tracking of missiles.  6, record 7, English, - Doppler%20effect

Record number: 7, Textual support number: 3 CONT

... Armand Fizeau... proved that the Doppler effect [in terms of electromagnetic phenomenon] also occurred in space. He proved that when a celestial object was moving away from Earth the lines of the spectrum [lower observed frequency] seen through a spectroscope would move towards the red end, and when the object was moving towards the Earth the lines of the spectrum [higher observed frequency] would move towards the blue end.  7, record 7, English, - Doppler%20effect

Record number: 7, Textual support number: 4 CONT

[The] "Doppler-Fizeau effect" or more simply "The Doppler effect" is usually shown and/or demonstrated by the example of the very definite change in the sound of a train and/or its whistle as the train passes a stationary observer.  8, record 7, English, - Doppler%20effect

Record number: 7, Textual support number: 1 OBS

Doppler effect: term standardized by NATO.  9, record 7, English, - Doppler%20effect

Record number: 7, Textual support number: 2 OBS

Doppler effect: term officially approved by the International Civil Aviation Organization (ICAO) and by the RADARSAT-2 Terminology Approval Group (RTAG).  10, record 7, English, - Doppler%20effect

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 DEF

Changement dans la fréquence observée d'une onde acoustique ou électromagnétique en raison du mouvement relatif de la source et de l'observateur.  3, record 7, French, - effet%20Doppler

Record number: 7, Textual support number: 2 DEF

Variation apparente de fréquence d'une onde acoustique ou radioélectrique qui atteint un observateur ou un récepteur de radio, causée par une variation de la distance entre la source et l'opérateur ou le récepteur pendant la transmission. [Définition normalisée par l'OTAN].  4, record 7, French, - effet%20Doppler

Record number: 7, Textual support number: 1 CONT

Effet Doppler. L'effet tient son nom du physicien Christian Johann Doppler, qui établit le principe physique du phénomène sur les ondes sonores en 1842. Lorsque l'émetteur de l'onde se rapproche de l'observateur, la fréquence semble plus grande (l'onde est «tassée»), et lorsqu'il s'en éloigne, la fréquence semble plus faible (l'onde est «dilatée»). C'est pourquoi la sirène d'une ambulance paraît plus aiguë quand elle s'approche d'un observateur et plus grave lorsqu'elle s'éloigne de lui.  5, record 7, French, - effet%20Doppler

Record number: 7, Textual support number: 2 CONT

L'effet Doppler-Fizeau. [...] phénomène qui se produit lorsqu'une source de vibration (sons, ultrasons) ou de rayonnements électromagnétiques (lumière, ondes radio...) de fréquence donnée est en mouvement par rapport à un observateur et qui se traduit pour celui-ci par une modification de la fréquence perçue. [...] Le même phénomène explique le décalage des raies spectrales dans le spectre d'émission d'un corps céleste (effet Doppler). Ce ne sont plus des longueurs d'ondes acoustiques mais des longueurs d'ondes lumineuses (ondes associées aux photons) émises par le corps en mouvement, on observe alors un décalage des raies spectrales vers le rouge (éloignement, périodes plus grandes) ou vers le bleu (rapprochement, périodes plus courtes). Ce décalage est donc fonction de la vitesse relative d'éloignement, ce qui permet aux astrophysiciens de déterminer la position, la vitesse et la composition d'un astre. À l'échelle atomique (modèle microscopique), l'effet Doppler-Fizeau est responsable de l'élargissement thermique des raies spectrales [...]  6, record 7, French, - effet%20Doppler

Record number: 7, Textual support number: 3 CONT

L'effet découvert par DOPPLER sur le son fut étendu à la lumière par le physicien français Hippolyte FIZEAU en 1848. Ce qui est vrai pour le son est vrai pour la lumière : le grave correspond au rouge et l'aigu au bleu.  7, record 7, French, - effet%20Doppler

Record number: 7, Textual support number: 1 OBS

En radar, il y a effet Doppler à l'aller et au retour [...]  8, record 7, French, - effet%20Doppler

Record number: 7, Textual support number: 2 OBS

[Selon cet auteur,] l'effet Doppler est appelé effet Doppler-Fizeau dans le cas des ondes électro-magnétiques.  9, record 7, French, - effet%20Doppler

Record number: 7, Textual support number: 3 OBS

effet doppler : terme normalisé par l'OTAN.  10, record 7, French, - effet%20Doppler

Record number: 7, Textual support number: 4 OBS

effet Doppler-Fizeau : terme normalisé par l'AFNOR.  11, record 7, French, - effet%20Doppler

Record number: 7, Textual support number: 5 OBS

effet Doppler : terme uniformisé par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - Opérations aériennes, par l'Organisation de l'aviation civile internationale (OACI), par le Groupe de travail de terminologie de l'artillerie antiaérienne et par le Groupe de travail de la terminologie RADARSAT-2 (GTTR).  12, record 7, French, - effet%20Doppler

Record 7,  Textual support,  Spanish

Record number: 7, Textual support number: 1 DEF

Cambio en la frecuencia observada de una onda acústica o electromagnética debido al movimiento relativo de la fuente o del observador.  2, record 7, Spanish, - efecto%20Doppler

Record number: 7, Textual support number: 1 OBS

efecto Doppler: término aceptado oficialmente por la Organización de Aviación Civil Internacional (OACI).  3, record 7, Spanish, - efecto%20Doppler

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 CONT

European Payload. [The core of the] ACES(Atomic Clock Ensemble in Space) [project] is a laser-cooled caesium atomic clock(Pharao), which exploits the microgravity conditions onboard the Space Station... Pharao will improve clock frequency stability and accuracy by a factor of 100 compared with the best measurements currently achievable on Earth, opening up new opportunities in various fields of fundamental research and applications. This ultra-precise measurement of time will allow relativistic measurements and tests, applications in atmospheric physics and geodesy, navigation and advanced telecommunications.  3, record 8, English, - Pharao

Record number: 8, Textual support number: 1 OBS

Pharao; laser-cooled caesium atomic clock: terms officially approved by the International Space Station official approval Group (ISSOAG).  4, record 8, English, - Pharao

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 CONT

Pour tester la Relativité générale dans le système solaire, le CNES [Centre national d'études spatiales] développera d'abord de nouveaux outils de métrologie temps - fréquence (tels que ceux du projet d'horloge atomique à atomes refroidis PHARAO, installé en 2005 sur la station spatiale et dont l'exactitude et la stabilité atteindront 10-16 par jour), ainsi que des techniques de transfert de temps ultra précis.  6, record 8, French, - Pharao

Record number: 8, Textual support number: 1 OBS

Pharao; horloge atomique à atomes refroidis : termes uniformisés par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).  7, record 8, French, - Pharao

Record 8,  Textual support,  Spanish

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 CONT

... propagation factors affecting sharing of the radio frequency spectrum and coordination between space and terrestrial radio-relay systems.  1, record 9, English, - space%20and%20terrestrial%20radio%2Drelay%20systems

Record 9,  Textual support,  French

Record number: 9, Textual support number: 1 OBS

[...] facteurs de propagation affectant le partage des bandes de fréquences radioélectriques et la coordination entre les systèmes spatiaux et les systèmes de faisceaux hertziens.  1, record 9, French, - syst%C3%A8mes%20spatiaux%20et%20syst%C3%A8mes%20de%20faisceaux%20hertziens

Record 9,  Textual support,  Spanish

Record 10,  Textual support,  English

Record number: 10, Textual support number: 1 DEF

The form of frequency modulation in which the modulating wave shifts the output frequency between predetermined values, and the output wave has no phase discontinuity.  7, record 10, English, - frequency%2Dshift%20keying

Record number: 10, Textual support number: 2 DEF

Frequency modulation in which a digital modulating signal varies the output frequency between a fixed number of predetermined values.  8, record 10, English, - frequency%2Dshift%20keying

Record number: 10, Textual support number: 1 OBS

Commonly, the instantaneous frequency is shifted between two discrete values termed the mark and space frequencies.  7, record 10, English, - frequency%2Dshift%20keying

Record number: 10, Textual support number: 2 OBS

frequency shift modulation: term officially approved by the International Civil Aviation Organization (ICAO).  9, record 10, English, - frequency%2Dshift%20keying

Record 10,  Textual support,  French

Record number: 10, Textual support number: 1 DEF

Modulation de fréquence par un signal numérique modulateur qui fait varier la fréquence du signal de sortie parmi un nombre fixe de valeurs prédéfinies.  5, record 10, French, - modulation%20par%20d%C3%A9placement%20de%20fr%C3%A9quence

Record number: 10, Textual support number: 1 OBS

transmission par déplacement de fréquence; transmission télégraphique par déplacement de fréquence : termes normalisés par l'AFNOR.  6, record 10, French, - modulation%20par%20d%C3%A9placement%20de%20fr%C3%A9quence

Record number: 10, Textual support number: 2 OBS

modulation par déplacement de fréquence : terme normalisé par la CSA et l'ISO.  6, record 10, French, - modulation%20par%20d%C3%A9placement%20de%20fr%C3%A9quence

Record number: 10, Textual support number: 3 OBS

modulation par déplacement de fréquence : terme uniformisé par l'Organisation de l'aviation civile internationale (OACI).  7, record 10, French, - modulation%20par%20d%C3%A9placement%20de%20fr%C3%A9quence

Record 10,  Textual support,  Spanish

Record number: 10, Textual support number: 1 DEF

Método de modulación por el cual la señal moduladora desplaza la frecuencia de la señal portadora entre dos valores predeterminados y en el que la señal resultante no presenta discontinuidad de fase.  4, record 10, Spanish, - modulaci%C3%B3n%20por%20desplazamiento%20de%20frecuencia

Record number: 10, Textual support number: 1 OBS

modulación por desplazamiento de frecuencia : término aceptado oficialmente por la Organización de Aviación Civil Internacional (OACI).  5, record 10, Spanish, - modulaci%C3%B3n%20por%20desplazamiento%20de%20frecuencia

Record 11,  Textual support,  English

Record number: 11, Textual support number: 1 DEF

The reduction in predetection signal-to-interference energy ratio required to achieve a given level of performance relative to that of a nondiversity radar, resulting from the use of diversity in frequency, polarization, space, or other characteristics.  2, record 11, English, - diversity%20gain

Record 11,  Textual support,  French

Record number: 11, Textual support number: 1 DEF

Différence entre l'amplitude du signal le plus fort reçu dans une station de réception en diversité et l'amplitude du signal le plus faible.  1, record 11, French, - gain%20de%20diversit%C3%A9

Record 11,  Textual support,  Spanish

Record number: 11, Textual support number: 1 DEF

Ganancia que se obtiene con un sistema en diversidad en la recepción al utilizar dos o más antenas.  1, record 11, Spanish, - ganancia%20de%20diversidad

Record 12,  Textual support,  English

Record number: 12, Textual support number: 1 DEF

A periodic wave having a fixed distribution in space which is the result of interference of progressive waves of the same frequency and kind.  3, record 12, English, - standing%20wave

Record number: 12, Textual support number: 1 OBS

standing wave: term officially approved by the Electronics and Telecommunications Terminology Committee in 1993.  4, record 12, English, - standing%20wave

Record 12,  Textual support,  French

Record number: 12, Textual support number: 1 DEF

État vibratoire résultant de l'interférence d'ondes progressives de même nature, transversale ou longitudinale, et de même fréquence tel qu'en tout point les phénomènes d'oscillations sont régis par la même fonction du temps multipliée par un facteur variable d'un point à un autre.  2, record 12, French, - onde%20stationnaire

Record number: 12, Textual support number: 1 OBS

onde stationnaire : terme et définition normalisés par l'AFNOR et reproduits avec son autorisation.  2, record 12, French, - onde%20stationnaire

Record number: 12, Textual support number: 2 OBS

onde stationnaire : terme uniformisé par le Comité d’uniformisation des termes de l’électronique et des télécommunications (CUTEL) en 1993.  3, record 12, French, - onde%20stationnaire

Record 12,  Textual support,  Spanish

Record number: 12, Textual support number: 1 DEF

Onda periódica cuya distribución fija en el espacio es el resultado de la superposición de dos ondas progresivas de la misma frecuencia que se propagan en sentido contrario.  2, record 12, Spanish, - onda%20estacionaria

Record 13,  Textual support,  English

Record number: 13, Textual support number: 1 CONT

The PHM is an atomic clock with outstanding stability for averaging times from 1 to 100, 000 seconds, to be used in precise positioning, time keeping and other on-boards applications. It is designed to perform in space environment for not less than 12 years. The operating principle exploits the stimulated energy emission occurring during the hyperfine transition of the atomic hydrogen in a miniaturised microwave cavity. The ultra stable RF [Radio Frequency] generated signal, at the frequency of 1420. 4057517.. MHz [megahertz], is used as a reference in a frequency synthesiser to generate the 10 MHz standard reference frequency.  3, record 13, English, - passive%20hydrogen%20mazer

Record number: 13, Textual support number: 1 OBS

The PHM is the most stable spaceborne atomic clock ever developed for an operational programme. The PHM is the master clock for the ESA/EU [European Space Agency/Europe] Galileo Navigation System.  3, record 13, English, - passive%20hydrogen%20mazer

Record 13,  Textual support,  French

Record number: 13, Textual support number: 1 CONT

GIOVE-B transporte à son bord deux horloges atomiques au rubidium et un maser à hydrogène passif [PHM], l'horloge atomique la plus précise au monde, toutes trois conçues et réalisées par la société neuchâteloise SpectraTime, filiale du groupe Orolia. Ces horloges constituent la base de temps des satellites, et donc l'élément clé de ce premier système de navigation européen. Elles permettent d'atteindre une stabilité de moins de 10 milliardièmes de secondes par jour. « C'est la première fois qu'un tel maser à hydrogène passif (PHM) est envoyé dans l'espace, et c'est lui qui donnera à Galileo ses performances uniques au monde. Pour donner un point de comparaison, nos horloges sont 10 millions de fois plus précises qu'une montre à quartz » [...] SpectraTime.  2, record 13, French, - maser%20%C3%A0%20hydrog%C3%A8ne%20passif

Record number: 13, Textual support number: 1 OBS

Le second satellite expérimental du système européen de positionnement par satellite Galileo, destiné notamment à tester l'horloge atomique la plus précise jamais placée en orbite à ce jour, a été lancé avec succès le 27 avril 2008 dernier du centre spatial de Baïkonour. Ce satellite de test, baptisé GIOVE-B (Galileo In-Orbit Validation Element) [...] Galileo, premier système européen de navigation et de positionnement par satellite [...] sera compatible avec les deux autres systèmes de navigation par satellite couvrant l'ensemble du globe : le système américain GPS et le système russe Glonass.  2, record 13, French, - maser%20%C3%A0%20hydrog%C3%A8ne%20passif

Record number: 13, Textual support number: 2 OBS

Le maser ("Microwave Amplification by Stimulated Emission of Radiation") à hydrogène est une horloge atomique extrêmement stable basée sur l'atome d'hydrogène. Il a été inventé par Kleppner et Ramsey en 1960 à l'université de Harvard. Le principe de fonctionnement est semblable à celui du LASER sauf que la radiation émise est une radiation micro-onde et non pas optique. Le maser à hydrogène est utilisé principalement en radioastronomie et en géodésie comme horloge pour la synchronisation de radiotélescopes utilisant la technique du VLBI (Very Long Base Interferometry). Il est utilisé également pour la poursuite des sondes planétaires (Deep Space Tracking). Dans le futur, il pourrait être utilisé dans les systèmes de navigation par satellite de type GPS à cause de sa très grande stabilité (cf l'avenir du temps atomique ).  3, record 13, French, - maser%20%C3%A0%20hydrog%C3%A8ne%20passif

Record 13,  Textual support,  Spanish

Record 15,  Textual support,  English

Record number: 15, Textual support number: 1 DEF

A set of interrogator-to-tag and tag-to-interrogator signaling parameters used in dense-interrogator environments.  4, record 15, English, - dense%20reader%20mode

Record number: 15, Textual support number: 1 CONT

All the interrogators support dense-reader mode(DRM), which allows many interrogators to share the same physical space more efficiently without polluting the RF [radio frequency] spectrum.  5, record 15, English, - dense%20reader%20mode

Record number: 15, Textual support number: 1 OBS

dense-interrogator mode: term and definition standardized by ISO/IEC [International Electrotechnical Commission].  6, record 15, English, - dense%20reader%20mode

Record 15,  Textual support,  French

Record number: 15, Textual support number: 1 DEF

Mode de fonctionnement d'un lecteur RFID [identification par radiofréquence] qui doit communiquer dans un périmètre fermé où plusieurs autres lecteurs fonctionnent en même temps.  2, record 15, French, - mode%20de%20lecture%20dans%20un%20environnement%20dense

Record 15,  Textual support,  Spanish

Record 16,  Textual support,  English

Record number: 16, Textual support number: 1 DEF

A frequency which can be transmitted or received through space or a transmission circuit, with a superposed information signal that, by itself, could not be transmitted and received effectively.  5, record 16, English, - modulated%20carrier

Record number: 16, Textual support number: 1 OBS

modulated carrier: term officially approved by the International Civil Aviation Organization (ICAO).  6, record 16, English, - modulated%20carrier

Record 16,  Textual support,  French

Record number: 16, Textual support number: 1 DEF

Signal d'une amplitude et d'une fréquence établies qui est combiné, par modulation, au signal d'information produisant un signal de sortie propre à la transmission.  2, record 16, French, - porteuse%20modul%C3%A9e

Record number: 16, Textual support number: 1 OBS

porteuse modulée : terme uniformisé par l'Organisation de l'aviation civile internationale (OACI)  4, record 16, French, - porteuse%20modul%C3%A9e

Record 16,  Textual support,  Spanish

Record number: 16, Textual support number: 1 DEF

Frecuencia que puede ser transmitida o recibida a través del espacio o un circuito de transmisión, con una señal de información superpuesta que por sí misma no puede ser transmitida y recibida efectivamente.  2, record 16, Spanish, - portadora%20modulada

Record number: 16, Textual support number: 1 OBS

portadora modulada: término aceptado oficialmente por la Organización de Aviación Civil Internacional (OACI).  3, record 16, Spanish, - portadora%20modulada

Record 17,  Textual support,  English

Record number: 17, Textual support number: 1 DEF

The change in space and time in the pattern, frequency, size, and successional processes of forest canopy gaps caused by the fall or death of one or more canopy trees.  2, record 17, English, - gap%20dynamics

Record 17,  Textual support,  French

Record number: 17, Textual support number: 1 DEF

Changement, dans le temps et dans l'espace, de la disposition, de la fréquence, de la dimension et du processus de succession des ouvertures du couvert provoquées par la chute ou la mort d'un ou de plusieurs arbres qui le composent.  3, record 17, French, - dynamique%20des%20trou%C3%A9es

Record 17,  Textual support,  Spanish

Record 18,  Textual support,  English

Record number: 18, Textual support number: 1 DEF

Entry of a designated frequency channel in an agreed plan, adopted by a competent conference, for use by one or more administrations for a terrestrial or space radiocommunication service in one or more identified countries or geographical areas and under specified conditions.  1, record 18, English, - allotment

Record 18,  Textual support,  French

Record number: 18, Textual support number: 1 DEF

Inscription d'un canal donné dans un plan adopté par une conférence compétente, aux fins de son utilisation par une ou plusieurs administrations pour un service de radiocommunication de Terre ou spatiale, dans un ou plusieurs pays ou zones géographiques déterminés et selon des conditions spécifiées.  1, record 18, French, - allotissement

Record 18,  Textual support,  Spanish

Record number: 18, Textual support number: 1 CONT

Hay una serie de voces comunes que en los textos relacionados con las telecomunicaciones se utilizan como términos técnicos y no deben traducirse arbitrariamente. Figuran entre ellas: atribución (EN, allocation; FR attribution), adjudicación (EN, allotment; FR, allotissement) y asignación (EN, assignment; FR, assignation), ya que la primera se refiere a la distribución de frecuencias entre servicios, la segunda entre zonas o países y la tercera entre estaciones.  1, record 18, Spanish, - adjudicaci%C3%B3n

Record 19,  Textual support,  English

Record number: 19, Textual support number: 1 CONT

Where a fixed service using tropospheric scatter operates in the bands listed in the first column and there is insufficient frequency separation, there must be sufficient angular separation between the direction to the space station and the direction of maximum radiation of the antenna of the receiving station of the fixed service using tropospheric scatter, in order to ensure that the interference power at the receiver input of the fixed-service station does not exceed-168 dBW in any 4 kHz band.  1, record 19, English, - sufficient%20angular%20separation

Record 19,  Textual support,  French

Record number: 19, Textual support number: 1 CONT

Lorsque le service fixe utilisant les techniques de diffusion troposphérique fonctionne dans les bandes énumérées dans la première colonne et que la séparation de fréquence est insuffisante, il faut prévoir une séparation angulaire suffisante entre la direction de la station spatiale et celle du rayonnement maximal de l'antenne de la station réceptrice du service fixe utilisant les techniques de diffusion troposphérique, afin que la puissance de brouillage à l'entrée du récepteur de la station du service fixe ne dépasse pas -168 dBW dans une bande quelconque large de 4 kHz.  1, record 19, French, - s%C3%A9paration%20angulaire%20suffisante

Record 19,  Textual support,  Spanish

Record 20,  Textual support,  English

Record number: 20, Textual support number: 1 DEF

The natural resonance frequency of a loudspeaker driver when it is suspended in "free space. "  2, record 20, English, - free%20air%20resonance

Record 20,  Textual support,  French

Record number: 20, Textual support number: 1 DEF

Fréquence de résonance naturelle d'un moteur de haut-parleur lorsqu'il est suspendu dans un «espace libre».  2, record 20, French, - r%C3%A9sonance%20%C3%A0%20l%27air%20libre

Record 20,  Textual support,  Spanish

Record 21,  Textual support,  English

Record number: 21, Textual support number: 1 DEF

Propagation of energy through space or material media by wave disturbances in electric and magnetic fields ...  2, record 21, English, - electromagnetic%20radiation

Record number: 21, Textual support number: 1 OBS

Light and radar are examples of electromagnetic radiation differing only in their wave lengths(or frequency). Electric and magnetic fields propagate through space at the speed of light.  3, record 21, English, - electromagnetic%20radiation

Record number: 21, Textual support number: 2 OBS

... according to quantum theory the energy exists in discrete units (photons). The speed of propagation of the energy through space and in air is about 3 x 10⁸ m^-1.  2, record 21, English, - electromagnetic%20radiation

Record number: 21, Textual support number: 3 OBS

The term also applies to the energy itself.  2, record 21, English, - electromagnetic%20radiation

Record number: 21, Textual support number: 4 OBS

[In remote sensing] polarisation is defined according to the plane variation within which the wave oscillates. If the variation behaves randomly, the wave is said to be non-polarised and if the plane remains stable the polarisation is rectilinear.  4, record 21, English, - electromagnetic%20radiation

Record number: 21, Textual support number: 5 OBS

electromagnetic radiation: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).  5, record 21, English, - electromagnetic%20radiation

Record 21,  Textual support,  French

Record number: 21, Textual support number: 1 DEF

Propagation de l'énergie à travers l'espace ou dans les milieux matériels sous forme d'ondes dans les champs électrique et magnétique [...]  3, record 21, French, - rayonnement%20%C3%A9lectromagn%C3%A9tique

Record number: 21, Textual support number: 1 OBS

[...] selon la théorie des quanta, l'énergie existe en unités discrètes (photons). La vitesse de propagation de l'énergie dans l'espace et dans l'air est d'environ 3 x 10⁸ m s^-1.  3, record 21, French, - rayonnement%20%C3%A9lectromagn%C3%A9tique

Record number: 21, Textual support number: 2 OBS

Exemples : Ondes radio, lumière et les rayons X.  2, record 21, French, - rayonnement%20%C3%A9lectromagn%C3%A9tique

Record number: 21, Textual support number: 3 OBS

Les deux mots «radiation» et «rayonnement» ne représentent pas des notions complètement distinctes; le premier est employé de préférence lorsque l'on considère essentiellement l'aspect corpusculaire, le second désignant surtout l'aspect ondulatoire électromagnétique.  4, record 21, French, - rayonnement%20%C3%A9lectromagn%C3%A9tique

Record number: 21, Textual support number: 4 OBS

Le terme s'applique aussi à l'énergie elle-même.  3, record 21, French, - rayonnement%20%C3%A9lectromagn%C3%A9tique

Record number: 21, Textual support number: 5 OBS

[En télédétection] la polarisation caractérise la variation du plan dans lequel oscille l'onde. Si cette variation est aléatoire, l'onde est dite non polarisée. Si ce plan reste fixe, la polarisation est dite rectiligne.  5, record 21, French, - rayonnement%20%C3%A9lectromagn%C3%A9tique

Record number: 21, Textual support number: 6 OBS

rayonnement électromagnétique : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  6, record 21, French, - rayonnement%20%C3%A9lectromagn%C3%A9tique

Record 21,  Textual support,  Spanish

Record number: 21, Textual support number: 1 DEF

Propagación de la energía a través del espacio o de un medio material por perturbaciones ondulatorias en los campos eléctrico y magnético.  2, record 21, Spanish, - radiaci%C3%B3n%20electromagn%C3%A9tica

Record number: 21, Textual support number: 1 OBS

De acuerdo con la teoría cuántica, la energía existe en unidades discretas (fotones). La velocidad de propagación de la energía a través del espacio y en el aire es, aproximadamente, de 3 x 10⁸ m s^-1.  2, record 21, Spanish, - radiaci%C3%B3n%20electromagn%C3%A9tica

Record number: 21, Textual support number: 2 OBS

El término se aplica también a la energía misma.  2, record 21, Spanish, - radiaci%C3%B3n%20electromagn%C3%A9tica

Record 22,  Textual support,  English

Record number: 22, Textual support number: 1 CONT

High-frequency ventilation(HFV) is time-cycled positive pressure ventilation that delivers a high frequency(60-120 breathes per min) of small tidal volumes(1-5 ml/kg) that are usually less than the anatomic dead space. This type of ventilation can be accomplished been in 3 different modes : high-frequency positive-pressure ventilation(HFPPV), high-frequency jet ventilation(HFJV), and high-frequency oscillatory ventilation(HFOV).  1, record 22, English, - high%20frequency%20positive%20pressure%20ventilation

Record 22,  Textual support,  French

Record number: 22, Textual support number: 1 CONT

[...] la [ventilation à haute fréquence] consiste à ventiler le malade à l'aide de volumes courants plus petits que ceux de la respiration naturelle, voire inférieurs au volume de l'espace mort anatomique, à une fréquence excédant 60 par minutes. [On utilise] trois techniques : la ventilation en pression positive à haute fréquence, la jet-ventilation à haute fréquence, la technique des oscillations à haute fréquence.  1, record 22, French, - ventilation%20en%20pression%20positive%20%C3%A0%20haute%20fr%C3%A9quence

Record 22,  Textual support,  Spanish

Record 23,  Textual support,  English

Record number: 23, Textual support number: 1 DEF

An instrument that measures very small distances by splitting a light beam into two parts directed over separate paths and then reuniting the beams. The difference in paths lengths is displayed as a light interference pattern, which can be related to the distance moved.  4, record 23, English, - interferometric%20detector

Record number: 23, Textual support number: 1 CONT

Space Based Detectors. Ground based interferometers are limited at the low frequency end by the practical difficulties of operating on Earth : the increasing difficulty of vibration isolation at lower frequencies, the effects of the curvature of the Earth for longer baseline detectors, and the expense of longer vacuum systems. There is also the fundamental difficulty of gravity gradient noise... The obvious solution to these specific difficulties is to use an interferometric detector in space. Interferometer arms may be made orders of magnitude longer than is practical on Earth.  6, record 23, English, - interferometric%20detector

Record 23,  Textual support,  French

Record number: 23, Textual support number: 1 CONT

L'interféromètre est un [...] dispositif qui utilise les interférences. C'est un appareil dans lequel un faisceau lumineux est divisé en deux rayons parallèles. Chaque rayon se déplace alors sur une distance fixe avant qu'il soit rejoint par son jumeau au sein d'un faisceau unique. Si les distances parcourues et les indices de réfraction des deux trajets sont les mêmes, les rayons se recombineront de manière constructive et le faisceau original sera recréé. Si les distances sont différentes, ou si l'indice de réfraction de l'un des deux trajets est modifié, les rayons subiront une interférence destructive et le nouveau faisceau affichera une intensité réduite. Les interféromètres sont extrêmement sensibles aux modifications de la distance ou de l'indice de réfraction des deux trajets. Avec ce dispositif, des écarts de distance inférieurs à une longueur d'onde peuvent être mesurés facilement.  6, record 23, French, - d%C3%A9tecteur%20interf%C3%A9rom%C3%A9trique

Record number: 23, Textual support number: 1 PHR

Interféromètre intégré.  7, record 23, French, - d%C3%A9tecteur%20interf%C3%A9rom%C3%A9trique

Record 23,  Textual support,  Spanish

Record 24,  Textual support,  English

Record number: 24, Textual support number: 1 CONT

The Thermal Qualification Facilities have one thermal chamber ..., one thermal humidity chamber ..., two thermal PIM (passive intermodulation) chambers ..., one bakeout chamber ..., plus four cylindrical thermal vacuum chambers ...  2, record 24, English, - thermal%20passive%20intermodulation%20chamber

Record number: 24, Textual support number: 2 CONT

The services offered by DFL' s facilities include the following : two Class 100, 000 clean rooms... fully equipped for the integration and assembly of satellites and other space hardware; three space simulation chambers... for performing thermal vacuum and thermal balance testing, and one small chamber for performing outgassing tests; a range of thermal, temperature humidity, and thermal passive intermodulation(PIM) chambers for performing various thermal and thermal PIM tests... ;various anechoic chambers, shielded rooms and antenna ranges and associated radio frequency(RF) equipment...  3, record 24, English, - thermal%20passive%20intermodulation%20chamber

Record 24,  Textual support,  French

Record number: 24, Textual support number: 1 CONT

Les installations de qualification thermique comportent un caisson thermique [...], un caisson thermo-hygrométrique [...], deux caissons thermiques MIP (mesure de l'intermodulation à l'état passif) [...], un caisson d'étuvage ..] de même que quatre caissons cylindriques de vide thermique [...]  1, record 24, French, - caisson%20thermique%20MIP

Record number: 24, Textual support number: 1 OBS

«PIM» : Mesure d'intermodulation passive.  3, record 24, French, - caisson%20thermique%20MIP

Record number: 24, Textual support number: 2 OBS

MIEP : Mesure d'intermodulation à l'état passif.  4, record 24, French, - caisson%20thermique%20MIP

Record 24,  Textual support,  Spanish

Record 25,  Textual support,  English

Record number: 25, Textual support number: 1 CONT

The Atomic Clock Ensemble in Space(ACES) is a programme to test the performance of a new type of clock that exploits and depends upon microgravity conditions. It consists of four key elements : a laser-cooled atomic clock; a hydrogen maser; a laser link for optical transfer of time and frequency; a microwave link for transfer of time and frequency.  2, record 25, English, - atomic%20clock%20ensemble%20in%20space

Record number: 25, Textual support number: 1 OBS

The atomic clock experiments are expected to improve the accuracy by a factor of 100 as compared to terrestrial atomic clocks. The ultra-precise time measurement will promote relativistic measurements and tests, and applications in atmospheric physics, geodesy, navigation and advanced telecommunications, as well as serve as a universal time and frequency reference from space.  3, record 25, English, - atomic%20clock%20ensemble%20in%20space

Record number: 25, Textual support number: 2 OBS

atomic clock ensemble in space; ACES: term and abbreviation officially approved by the International Space Station official approval Group (ISSOAG).  4, record 25, English, - atomic%20clock%20ensemble%20in%20space

Record 25,  Textual support,  French

Record number: 25, Textual support number: 1 CONT

En avril 1997 PHARAO a été soumis à l'Agence spatiale européenne (ESA) dans le cadre d'une mission plus large appelée ACES (Atomic Clock Ensemble in Space). Son principe est de mettre à bord de la Station spatiale internationale (ISS) un ensemble comprenant des horloges ultra-stables et des méthodes de transfert temps/fréquences performantes. Dans la configuration de base de ACES, les deux horloges retenues sont PHARAO et un maser à hydrogène fourni par l'Observatoire de Neuchâtel (Suisse). Le transfert de temps est réalisé par un lien optique utilisant des impulsions laser très brèves (T2L2, fourni par l'Observatoire de la Côte d'Azur) et également par un lien dans le domaine micro-onde qui, lui, peut fonctionner par toutes conditions atmosphériques. En décembre 1997, la mission ACES [sera] montée sur une palette EXPRESS de la station spatiale en juin 2005.  2, record 25, French, - ensemble%20d%27horloges%20atomiques%20dans%20l%27espace

Record number: 25, Textual support number: 1 OBS

ensemble d'horloges atomiques dans l'espace; ACES : terme et abréviation uniformisés par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).  3, record 25, French, - ensemble%20d%27horloges%20atomiques%20dans%20l%27espace

Record 25,  Textual support,  Spanish

Record 26,  Textual support,  English

Record number: 26, Textual support number: 1 CONT

The radiation pattern of a panel array depends on the relative positions of the individual panels in space and the relative amplitude and phase of the RF [radio frequency] energy fed to each panel. Therefore it is necessary to have exact dimensional information about the supporting tower or mast if one is to optimize an array design.  2, record 26, English, - array%20design

Record 26,  Textual support,  French

Record 26,  Textual support,  Spanish

Record 27,  Textual support,  English

Record number: 27, Textual support number: 1 DEF

Entry in the Table of Frequency Allocations of a given frequency band for the purpose of its use by one or more terrestrial or space radiocommunication services or the radio astronomy service under specified conditions. This term shall also be applied to the frequency band concerned.  2, record 27, English, - allocation

Record 27,  Textual support,  French

Record number: 27, Textual support number: 1 DEF

Inscription dans le Tableau d'attribution des bandes de fréquences, d'une bande de fréquences déterminée, aux fins de son utilisation par un ou plusieurs services de radiocommunication de Terre ou spatiale, ou par le service de radioastronomie, dans des conditions spécifiées. Ce terme s'applique également à la bande de fréquences considérée.  2, record 27, French, - attribution

Record 27,  Textual support,  Spanish

Record 28,  Textual support,  English

Record number: 28, Textual support number: 1 OBS

IUCAF is an international committee(set up in 1960 by URSI, IAU, and COSPAR) that works in the field of spectrum management on behalf of the passive radio sciences, like radio astronomy, remote sensing, space research, and meteorological remote sensing. The IUCAF brief is to study and coordinate the requirements for radio frequency allocations established by the afore-mentioned sciences and to make these requirements known to the national and international bodies responsible for frequency allocations. IUCAF has official standing as a nonvoting organisation at the ITU, the International Telecommunication Union, located in Geneva, Switzerland.  4, record 28, English, - Scientific%20Committee%20on%20Frequency%20Allocations%20for%20Radio%20Astronomy%20and%20Space%20Science

Record 28,  Textual support,  French

Record 28,  Textual support,  Spanish

Record 29,  Textual support,  English

Record number: 29, Textual support number: 1 CONT

The ISS microgravity acceleration environment consists of two regimes : the quasi-steady environment and the vibratory/transient environment; therefore, the measurement of the microgravity acceleration environment is best accomplished by two accelerometer systems. In the United States Laboratory Module, the measurement of these two regimes is accomplished by the Space Acceleration Measurement System-II(SAMS-II) and the Microgravity Acceleration Measurement System(MAMS). The vibratory/transient environment, consisting of vehicle, crew, and equipment disturbances and covering the frequency range 0. 01-300 Hz, will be measured by the SAMS-II.  2, record 29, English, - acceleration%20environment

Record 29,  Textual support,  French

Record 29,  Textual support,  Spanish

Record 30,  Textual support,  English

Record number: 30, Textual support number: 1 CONT

CLUSTER Radio Frequency Suitcase for the European Space Operation Centre. VTT Information Technology has delivered the Cluster RF-Suitcase to the European Space Operation Centre(ESOC) in Darmstadt, Germany at the end of 1994. The purpose of the Suitcase is to test the RF compatibility between ground stations and spacecraft and to test the uplink and downlink functional characteristics. The CLUSTER RF-Suitcase belongs to the Cluster mission, where four identical spacecraft will be launched into large, elliptic polar orbits around the earth on the early test flight of Ariane 5 at the end of 1995. The four spacecraft will detect how particles from the Sun interact with the earth's magnetic field.  1, record 30, English, - radio%20frequency%20suitcase

Record 30,  Textual support,  French

Record 30,  Textual support,  Spanish

Record 31,  Textual support,  English

Record number: 31, Textual support number: 1 CONT

To complement the SAMS-II measurements, the Microgravity Acceleration Measurement System(MAMS) will record accelerations caused by the aerodynamic drag created as the Space Station moves through space. It also will measure accelerations created as the vehicle rotates and vents water. These small, quasi-steady accelerations occur in the frequency range below 1 Hertz.  3, record 31, English, - microgravity%20acceleration%20measurement%20system

Record number: 31, Textual support number: 1 OBS

microgravity acceleration measurement system; MAMS: term and abbreviation officially approved by the International Space Station official approval Group (ISSOAG).  4, record 31, English, - microgravity%20acceleration%20measurement%20system

Record 31,  Textual support,  French

Record number: 31, Textual support number: 1 CONT

En complément du SAMS-II, le «Microgravity Acceleration Measurement System» (MAMS) enregistrera les accélérations causées par le déplacement de l'ISS [International Space Station] sur son orbite. Il mesura également les accélérations créées par les rotations du véhicule et les évacuations d'eau. Ces accélérations quasi imperceptibles se produisent à une portée de fréquences au-dessous d'un Hertz.  4, record 31, French, - syst%C3%A8me%20de%20mesure%20de%20l%27acc%C3%A9l%C3%A9ration%20spatiale

Record number: 31, Textual support number: 1 OBS

système de mesure de l'accélération spatiale; MAMS : terme et abréviation uniformisés par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).  5, record 31, French, - syst%C3%A8me%20de%20mesure%20de%20l%27acc%C3%A9l%C3%A9ration%20spatiale

Record 31,  Textual support,  Spanish

Record 32,  Textual support,  English

Record number: 32, Textual support number: 1 DEF

First transient wave train of atmospherics, having a small amplitude and a high frequency, which reaches a point in space prior to the large amplitude, low-frequency final steady-state wave train.  2, record 32, English, - precursor

Record 32,  Textual support,  French

Record number: 32, Textual support number: 1 DEF

Premier train d'ondes transitoire d'atmosphériques, de faible amplitude et de haute fréquence, qui atteint un point de l'espace avant le train d'ondes final de grande amplitude et de basse fréquence et en régime permanent.  2, record 32, French, - pr%C3%A9curseur

Record 32,  Textual support,  Spanish

Record number: 32, Textual support number: 1 DEF

Primer tren de ondas transitorio de los atmosféricos, de amplitud pequeña y alta frecuencia, que llega a un punto del espacio antes que el tren de ondas del estado permanente final, que es de amplitud grande y de frecuencia baja.  1, record 32, Spanish, - precursor

Record 33,  Textual support,  English

Record number: 33, Textual support number: 1 CONT

The objective of the Microgravity Acceleration Measurement System(MAMS) is to measure and report vibratory and quasi-steady acceleration within the United States Laboratory Module on the International Space Station. Vibratory acceleration, produced by mechanical equipment and crew activity, has an oscillatory nature with a frequency greater than 1 Hz.  2, record 33, English, - vibratory%20acceleration

Record number: 33, Textual support number: 2 CONT

... the Microgravity Mode ensures that ... the vibratory acceleration levels will not be exceeded for 50% of the International Standard Payload Rack locations within the European Columbus, Destiny and Japanese Kibo laboratories for at least 30 days continuously, on six occasions each year.  3, record 33, English, - vibratory%20acceleration

Record number: 33, Textual support number: 1 OBS

vibratory acceleration: term officially approved by the International Space Station official approval Group (ISSOAG).  4, record 33, English, - vibratory%20acceleration

Record 33,  Textual support,  French

Record number: 33, Textual support number: 1 OBS

accélération vibratoire : terme uniformisé par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).  2, record 33, French, - acc%C3%A9l%C3%A9ration%20vibratoire

Record 33,  Textual support,  Spanish

Record 34,  Textual support,  English

Record number: 34, Textual support number: 1 CONT

An external Ultra High Frequency(UHF) antenna... will be attached to the station's U. S. laboratory Destiny... The antenna, on a four-foot boom, is part of the UHF Communications Subsystem of the station. It will interact with systems already aboard the ISS [International Space Station], including the Space-to-Space Station Radio(SSSR) transceivers. A second antenna will be delivered on STS-115/11A next year. Once in operation the UHF subsystem will be used for space-to-space communication(voice, commands and telemetry for the space station). It can support up to five users on the same frequency and provides : Two-way voice communications between the station and space walkers, the station and orbiter and between the Mission Control Center in Houston and space walkers(using the UHF with the S-band subsystem).  3, record 34, English, - ultra%20high%20frequency%20antenna

Record number: 34, Textual support number: 1 OBS

ultra high frequency antenna : term officially approved by the International Space Station official approval Group(ISSOAG).  4, record 34, English, - ultra%20high%20frequency%20antenna

Record 34,  Textual support,  French

Record number: 34, Textual support number: 1 CONT

[Une] antenne à ondes décimétriques (UHF) [permettra] d'améliorer les communications entre la navette et la Station, lors des sorties extravéhiculaires.  3, record 34, French, - antenne%20%C3%A0%20ondes%20d%C3%A9cim%C3%A9triques

Record number: 34, Textual support number: 2 CONT

[...] une antenne à ondes décimétriques [est installée] sur la paroi extérieure de Destiny.  4, record 34, French, - antenne%20%C3%A0%20ondes%20d%C3%A9cim%C3%A9triques

Record number: 34, Textual support number: 1 OBS

antenne à ondes décimétriques : terme uniformisé par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).  5, record 34, French, - antenne%20%C3%A0%20ondes%20d%C3%A9cim%C3%A9triques

Record 34,  Textual support,  Spanish

Record 35,  Textual support,  English

Record number: 35, Textual support number: 1 CONT

Most LTMPF [Low-Temperature Microgravity Physics Facility] experiments are sensitive to random vibrations, charged particles, and stray magnetic fields.... A passive vibration isolation system attenuates higher frequency(>1Hz) vibration inputs from the ISS [International Space Station] to below 500 micro g rms. Several layers of magnetic shielding are built into the instrument probe to protect the experiments from on-orbit variations in the magnetic field environment.  2, record 35, English, - passive%20vibration%20isolation%20system

Record number: 35, Textual support number: 1 OBS

passive vibration isolation system: term officially approved by the International Space Station official approval Group (ISSOAG).  3, record 35, English, - passive%20vibration%20isolation%20system

Record 35,  Textual support,  French

Record number: 35, Textual support number: 1 OBS

système passif d'isolation contre les vibrations : terme uniformisé par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).  1, record 35, French, - syst%C3%A8me%20passif%20d%27isolation%20contre%20les%20vibrations

Record 35,  Textual support,  Spanish

Record 36,  Textual support,  English

Record number: 36, Textual support number: 1 CONT

The standard video interface to the ISPRs [International Standard Payload Racks] within the U.S. Lab and Columbus is comprised of fiber optic lines using an EIA-RS-170A optical pulse frequency modulated video signal. Fibers are used to support video to and from the ISPR payload.  2, record 36, English, - optical%20pulse%20frequency%20modulated%20video%20signal

Record number: 36, Textual support number: 1 OBS

optical pulse frequency modulated video signal : term officially approved by the International Space Station official approval Group(ISSOAG).  3, record 36, English, - optical%20pulse%20frequency%20modulated%20video%20signal

Record 36,  Textual support,  French

Record number: 36, Textual support number: 1 OBS

signal vidéo à modulation de fréquences par impulsions optiques : terme uniformisé par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).  1, record 36, French, - signal%20vid%C3%A9o%20%C3%A0%20modulation%20de%20fr%C3%A9quences%20par%20impulsions%20optiques

Record 36,  Textual support,  Spanish

Record 37,  Textual support,  English

Record number: 37, Textual support number: 1 DEF

Natural frequency of oscillation of a plasma, due to the collective motion of the electrons acting under the restoring force of their space charge attraction to the relatively stationary ions. [Definition standardized by ISO. ]  4, record 37, English, - plasma%20frequency

Record number: 37, Textual support number: 1 OBS

This frequency is very close to the electron plasma frequency.  4, record 37, English, - plasma%20frequency

Record number: 37, Textual support number: 2 OBS

plasma frequency; Langmuir frequency: terms standardized by ISO.  5, record 37, English, - plasma%20frequency

Record 37,  Textual support,  French

Record number: 37, Textual support number: 1 DEF

Fréquence naturelle d'oscillation d'un plasma, due au mouvement collectif des électrons agissant en raison de l'apport de force dû à l'attraction de leur charge d'espace vers les ions relativement stationnaires. [Définition normalisée par l'ISO.]  1, record 37, French, - fr%C3%A9quence%20de%20plasma

Record number: 37, Textual support number: 1 OBS

Cette fréquence est très voisine de la fréquence de plasma des électrons.  1, record 37, French, - fr%C3%A9quence%20de%20plasma

Record number: 37, Textual support number: 2 OBS

fréquence de plasma; fréquence de Langmuir : termes normalisés par l'ISO.  3, record 37, French, - fr%C3%A9quence%20de%20plasma

Record 37,  Textual support,  Spanish

Record 38,  Textual support,  English

Record number: 38, Textual support number: 1 DEF

Data pertaining to co-ordination of frequency assignments to a space station on a geostationary satellite or an earth station communicating with such a space station in relation to stations of other geostationary satellite networks.  1, record 38, English, - coordination%20data

Record 38,  Textual support,  French

Record number: 38, Textual support number: 1 OBS

S'emploie toujours au pluriel.  2, record 38, French, - donn%C3%A9es%20de%20coordination

Record 38,  Textual support,  Spanish

Record number: 38, Textual support number: 1 DEF

Datos pertenecientes a la coordinación de asignación de frecuencias a una estación espacial en un satélite geoestacionario o una estación terrena que se comunica con tal estación espacial en relación con las estaciones de otras redes de satélites geoestacionarios.  1, record 38, Spanish, - informaci%C3%B3n%20de%20coordinaci%C3%B3n

Record 39,  Textual support,  English

Record number: 39, Textual support number: 1 DEF

A term applied to the simultaneous combining of four signals and their detection through the use of space, frequency or pluralization characteristics.  1, record 39, English, - dual%20diversity

Record 39,  Textual support,  French

Record 39,  Textual support,  Spanish

Record number: 39, Textual support number: 1 DEF

Término aplicado a la combinación simultánea de cuatro señales y su detección a través del uso del espacio, frecuencia o características de pluralidad.  1, record 39, Spanish, - doble%20diversidad

Record 40,  Textual support,  English

Record number: 40, Textual support number: 1 CONT

The grouped-column chart is used to compare two or three independent series over a period of time.... Frequency distributions may also be portrayed with columns by grouping the categories in continuous class intervals. Each group of columns should be separated by a space wide enough to discern easily the time period or class interval.  1, record 40, English, - grouped%2Dcolumn%20chart

Record 40,  Textual support,  French

Record number: 40, Textual support number: 1 OBS

On utilise aussi les bandes accolées ou juxtaposées qui évoquent les tuyaux d'orgue. Voici un exemple de «tuyaux d'orgue» pour représenter l'évolution du nombre de personnes par grands groupes d'activités collectives en France de 1896 à 1936. Chaque année donne lieu à un système de bandes accolées.  2, record 40, French, - graphique%20%C3%A0%20tuyaux%20d%27orgue%20accol%C3%A9s

Record 40,  Textual support,  Spanish

Record 41,  Textual support,  English

Record number: 41, Textual support number: 1 DEF

An antenna capable of producing multiple beams in order to provide either space diversity, polarization diversity or variable-shaped beams.  2, record 41, English, - multibeam%20antenna

Record number: 41, Textual support number: 1 OBS

In satellite communications, space diversity allows for users geographically separated to reuse the same frequency band by accessing the satellite through a different antenna beam; polarization diversity allows the same frequency band to be reused by employing orthogonal polarizations. In a variable-shaped multibeam antenna, the beams are interconnected to a single common part. A receive-only earth station antenna may also be a multibeam antenna in order to accommodate satellites in the orbital arc.  2, record 41, English, - multibeam%20antenna

Record 41,  Textual support,  French

Record number: 41, Textual support number: 1 DEF

Antenne à plusieurs accès indépendants, ayant simultanément plusieurs diagrammes de rayonnement différents, chaque diagramme correspondant à un accès.  4, record 41, French, - antenne%20multidiagramme

Record 41,  Textual support,  Spanish

Record 42,  Textual support,  English

Record number: 42, Textual support number: 1 CONT

The computer-assisted FMS [frequency management system] of the IFRB [International Frequency Registration Board], the space network system.  1, record 42, English, - space%20network%20system

Record 42,  Textual support,  French

Record number: 42, Textual support number: 1 OBS

Assignation des fréquences.  3, record 42, French, - syst%C3%A8me%20d%27assignation%20pour%20r%C3%A9seaux%20spatiaux

Record 42,  Textual support,  Spanish

Record 43,  Textual support,  English

Record number: 43, Textual support number: 1 DEF

A radiocommunication service using space stations on earth satellites for the same purpose as those of standard frequency and time signal service.  1, record 43, English, - standard%20frequency%20and%20time%20signal%2Dsatellite%20service

Record number: 43, Textual support number: 1 OBS

This service may also include feeder links necessary for its operation.  1, record 43, English, - standard%20frequency%20and%20time%20signal%2Dsatellite%20service

Record 43,  Textual support,  French

Record number: 43, Textual support number: 1 DEF

Service de radiocommunication faisant usage de stations spatiales situées sur des satellites de la Terre pour les mêmes fins que le service des fréquences étalon et des signaux horaires.  1, record 43, French, - service%20des%20fr%C3%A9quences%20%C3%A9talon%20et%20des%20signaux%20horaires%20par%20satellite

Record number: 43, Textual support number: 1 OBS

Ce service peut aussi comprendre les liaisons de connexion nécessaires à son exploitation.  1, record 43, French, - service%20des%20fr%C3%A9quences%20%C3%A9talon%20et%20des%20signaux%20horaires%20par%20satellite

Record 43,  Textual support,  Spanish

Record 44,  Textual support,  English

Record number: 44, Textual support number: 1 DEF

The longitude of a position in the geostationary satellite orbit associated with a frequency assignment to a space station in a space radiocommunication service.  1, record 44, English, - nominal%20orbital%20position

Record 44,  Textual support,  French

Record number: 44, Textual support number: 1 DEF

Longitude d'une position sur l'orbite des satellites géostationnaires associée à une assignation de fréquence à une station spatiale d'un service de radiocommunications spatiales.  1, record 44, French, - position%20nominale%20sur%20l%27orbite

Record 44,  Textual support,  Spanish

Record 45,  Textual support,  English

Record number: 45, Textual support number: 1 DEF

A radiocommunication service using space station on earth satellites for the same purpose as those of the standard frequency service.  1, record 45, English, - standard%20frequency%2Dsatellite%20service

Record 45,  Textual support,  French

Record number: 45, Textual support number: 1 DEF

Service de radiocommunications faisant usage de stations spatiales situées sur des satellites de la Terre aux mêmes fins que le service des fréquences étalon.  1, record 45, French, - service%20des%20fr%C3%A9quences%20%C3%A9talon%20par%20satellite

Record 45,  Textual support,  Spanish

Record 46,  Textual support,  English

Record number: 46, Textual support number: 1 OBS

Space protection systems are usually either of the ultrasonic or radar(microwave) type. They are characterized as alarms because they saturate an enclosed area with a pattern of standing waves-whether of high frequency sound or of radio waves.  1, record 46, English, - space%20protection%20system

Record 46,  Textual support,  French

Record number: 46, Textual support number: 1 OBS

Les systèmes de protection de l'espace sont généralement du genre ultra-sonique ou à radar (hyperfréquence). On les décrit comme alarmes parce qu'ils entourent une superficie d'ondes fixes - qu'elles soient à haute fréquence ou radiotéléphoniques.  1, record 46, French, - syst%C3%A8me%20de%20protection%20de%20l%27espace

Record 46,  Textual support,  Spanish

Record 47,  Textual support,  English

Record number: 47, Textual support number: 1 CONT

The transmission signals are audio frequency shift keyed(AFSK) mark and space tone signals.  1, record 47, English, - audio%20frequency%20signal

Record 47,  Textual support,  French

Record 47,  Textual support,  Spanish

Record 48,  Textual support,  English

Record number: 48, Textual support number: 1 CONT

The transmission signals are audio frequency shift keyed(AFSK) mark and space tone signals.  1, record 48, English, - mark%20signal

Record 48,  Textual support,  French

Record 48,  Textual support,  Spanish

Record 49,  Textual support,  English

Record number: 49, Textual support number: 1 OBS

The transmission signals are audio frequency shift keyed(AFSK) mark and space tone signals.  1, record 49, English, - tone%20signal

Record 49,  Textual support,  French

Record 49,  Textual support,  Spanish

Record 50,  Textual support,  English

Record number: 50, Textual support number: 1 OBS

Space division multiple access [satellite switched] TDMA is a very efficient satellite communication system, in which multiple spotbeam antennae cover each area using the same frequency band, and the interconnection among the spots is made by time-division switching.  1, record 50, English, - multiple%20spotbeam%20antennae

Record 50,  Textual support,  French

Record number: 50, Textual support number: 1 OBS

Un système de télécommunications par satellite à très haut rendement est le système à accès multiple par répartition dans l'espace suivi de commutation au satellite et d'accès multiple par répartition, dans le temps: des antennes à faisceaux ponctuels multiples couvrent chaque zone en utilisant la même bande de fréquences, et l'interconnexion entre les faisceaux se fait par commutation en répartition dans le Temps.  1, record 50, French, - antenne%20%C3%A0%20faisceaux%20ponctuels%20multiples

Record 50,  Textual support,  Spanish

Record 51,  Textual support,  English

Record number: 51, Textual support number: 1 OBS

--. There are several plans for the transfer of records. The one selected will depend on the nature and frequency of reference, the space available, and the filing system in use.  1, record 51, English, - plan%20of%20transfer

Record 51,  Textual support,  French

Record number: 51, Textual support number: 1 OBS

[le transfert perpétuel. Selon cette méthode, il n' y a pas de date fixe pour procéder au transfert des dossiers. GETRA 71 211]  1, record 51, French, - m%C3%A9thode%20de%20transfert

Record 51,  Textual support,  Spanish