TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 OBS

frequency shift keying : a specialized modulation technique, in which the modulating signal is digital rather than analog.  3, record 1, English, - continuous%20phase%20frequency%20shift%20keying

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 OBS

modulation par déplacement de fréquence : la fréquence de la porteuse varie lorsqu'il y a changement dans l'état du signal transmis.  2, record 1, French, - modulation%20par%20d%C3%A9placement%20de%20fr%C3%A9quence%20%C3%A0%20variation%20continue%20de%20phase

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

Doppler weather radar. For many years radar has been used to provide information about the intensity and extent of rain and other forms of precipitation.... A major improvement in the capability of weather radar came about when engineers developed new radars that could measure the Doppler frequency shift in addition to the magnitude of the echo signal reflected from precipitation. The Doppler frequency shift is important because it is related to the radial velocity of the precipitation blown by wind(the component of the wind moving either toward or away from the radar installation). Since tornadoes, mesocyclones(which spawn tornadoes), hurricanes, and other hazardous weather phenomena tend to rotate, measurement of the radial wind speed as a function of viewing angle will identify rotating weather patterns.  3, record 2, English, - Doppler%20weather%20radar

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

[Un] radar météorologique à effet Doppler sert à évaluer l'intensité des perturbations et la distance à laquelle celles-ci se trouvent. Il est également capable de mesurer la vitesse et l'orientation du mouvement de ces perturbations.  2, record 2, French, - radar%20m%C3%A9t%C3%A9orologique%20Doppler

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 OBS

A partial indication of the degree of stability of a feedback loop based upon the extent by which the loop gain ratio falls short of unity at the frequency(or frequencies) at which the loop phase shift is zero.  1, record 3, English, - gain%20margin

Record 3,  Textual support,  French

Record 3,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 CONT

A frequency shift Doppler power spectrum produced from a Doppler spectrum analyser connected to a Doppler probe.  4, record 6, English, - Doppler%20spectrum%20analyser

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 CONT

On propose un algorithme de discrimination entre le signal et le bruit dans des analyseurs de spectre Doppler. Les résultats d'essais montrent que l'algorithme peut être utilisé pour estimer objectivement la fréquence maximale d'un spectre indépendemment du jugement subjectif de l'opérateur et du gain de l'analyseur de spectre.  2, record 6, French, - analyseur%20de%20spectre%20Doppler

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 CONT

The authors present a preliminary report to demonstrate a new color Doppler(CD) ultrasonography(US) technique called power Doppler(PD), which displays the total integrated Doppler power in color, and to compare PD with CD imaging, which generally displays an estimate of the mean Doppler frequency shift.  1, record 7, English, - power%20Doppler

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 CONT

L'étude des vaisseaux, artères et veines, se fait en doppler, technique basée sur la réflexion des ultrasons sur les structures en mouvement (les globules rouges font ainsi office d'interfaces réfléchissantes), la fréquence de réception des ondes réfléchies sur le sang en mouvement étant dépendante de sa vitesse circulatoire [...] Il est aussi possible d'obtenir une imagerie avec codage couleurs en fonction du nombre et de l'énergie des globules rouges circulant (doppler énergie), cette technique étant plus sensible aux flux lents.  3, record 7, French, - doppler%20de%20puissance

Record 7,  Textual support,  Spanish

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 CONT

Fetal heart detectors are devices that use ultrasonic waves to provide audible and/or visual information. They consist of an ultrasound-frequency electrical generator and appropriate ultrasound transducers housed in a probe that is placed on the maternal abdomen. Ultrasonic heartbeat detectors amplify the audible frequency shift signal of the returned ultrasonic waves and deliver it to speakers or headphones; the heart rate is determined either by measuring the timing of the peaks in the Doppler signal or, more accurately, by using automated autocorrelation procedures.  1, record 8, English, - ultrasonic%20fetal%20heart%20detector

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 OBS

ultrasonique : Cette graphie, puisée des Rectifications de l'orthographe recommandées par le Conseil supérieur de la langue française, est attestée dans le Petit Robert (2006).  2, record 8, French, - d%C3%A9tecteur%20cardiaque%20f%26oelig%3Btal%20ultrasonique

Record 8,  Textual support,  Spanish

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 CONT

Blood Velocity Meter. A continuous ultrasonic wave in the megahertz region is scattered as it passes through blood. The back-scattered part of the signal can be collected by a receiving transducer next to the transducer emitting the continuous waves, and the returning signal will be shifted in frequency in proportion to the velocity of the blood in the vessel. This Doppler frequency shift can be detected and applied to a frequency meter(e. g. zero crossing detector) or frequency analyzer to produce a signal proportional to blood velocity.  2, record 9, English, - blood%20velocity%20meter

Record 9,  Textual support,  French

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

An oscillator in which a network having a phase shift of an odd multiple of 180 °(per stage) at the oscillation frequency is connected between the output and input of an amplifier. When the phase shift is obtained by resistance-capacitance elements, the circuit is called an RC phase-shift oscillator.  2, record 11, English, - phase%20shift%20oscillator

Record 11,  Textual support,  French

Record 11,  Textual support,  Spanish

Record 12,  Textual support,  English

Record number: 12, Textual support number: 1 CONT

The longitudinal and the lateral speed of the ship may be measured by means of a sonar doppler log which operates on the principle that a sonar signal transmitted from a moving object and reflected back from a stationary surface will indicate a shift in frequency; this shift in frequency is proportional to the speed relative to the stationary surface of the moving object, which in this case will be the ship.  2, record 12, English, - lateral%20speed

Record 12,  Textual support,  French

Record 12,  Textual support,  Spanish

Record 17,  Textual support,  English

Record number: 17, Textual support number: 1 DEF

An electronic circuit or device that detects and strengthens weak signals, as from a radio receiver, for subsequent, more powerful amplification stages.  2, record 17, English, - preamplifier

Record number: 17, Textual support number: 1 CONT

The preferred embodiment of the present aircraft VHF [very high frequency] television receiving antenna system includes a signal processing circuit incorporating solid state switching for selecting antenna coverage, high and low pass filter circuits, passive combining networks providing 180° phase shift necessary for omnidirectional azimuth coverage, low noise preamplifiers for each television band, and other features...  3, record 17, English, - preamplifier

Record 17,  Textual support,  French

Record number: 17, Textual support number: 1 DEF

Circuit électronique ou dispositif utilisé pour la détection et l'amplification des signaux de faible intensité avant qu'ils ne subissent une amplification accrue.  2, record 17, French, - pr%C3%A9amplificateur

Record number: 17, Textual support number: 1 OBS

préamplificateur : terme uniformisé par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - Maintenance.  3, record 17, French, - pr%C3%A9amplificateur

Record 17,  Textual support,  Spanish

Record 18,  Textual support,  English

Record number: 18, Textual support number: 1 DEF

The changing of phase of a signal as it passes through a filter.  2, record 18, English, - phase%20shift

Record number: 18, Textual support number: 1 OBS

A delay in time of the signal is referred to as phase lag and in normal networks, phase lag increases with frequency, producing a positive envelope delay... It is possible for an output signal to experience a time shift ahead of the input signal and this is called "phase lead. "The phase shift is always dependent on frequency.  2, record 18, English, - phase%20shift

Record 18,  Textual support,  French

Record number: 18, Textual support number: 1 DEF

Phénomène [...] provoqué par le filtre d'une enceinte acoustique à plusieurs haut-parleurs.  4, record 18, French, - rotation%20de%20phase

Record number: 18, Textual support number: 1 OBS

Tous ces haut-parleurs devant être rigoureusement montés en phase [...], les composants d'un filtre passif peuvent entraîner à certaines fréquences des déphasages intermittents entre les différentes voies du filtre. Ce phénomène peut également exister dans les amplificateurs de puissance, principalement à la reproduction des fréquences hautes.  2, record 18, French, - rotation%20de%20phase

Record 18,  Textual support,  Spanish

Record 19,  Textual support,  English

Record number: 19, Textual support number: 1 DEF

Any form of radar which detects motion relative to a reflecting surface by measuring the frequency shift of reflected radio energy due to the motion of the observer or of the reflecting surface.  2, record 19, English, - Doppler%20radar

Record number: 19, Textual support number: 1 CONT

Doppler radar provides the pilot or navigator with a continuous indication of the drift angle and ground speed of the aircraft.  3, record 19, English, - Doppler%20radar

Record number: 19, Textual support number: 2 CONT

Forecasting centers will get new computers, Doppler radar for more precise rainfall measurements, and interactive models designed to let forecasters explore a range of possible scenarios.  4, record 19, English, - Doppler%20radar

Record number: 19, Textual support number: 1 OBS

doppler radar: term and definition standardized by NATO.  5, record 19, English, - Doppler%20radar

Record number: 19, Textual support number: 2 OBS

In the NATO Glossary "Doppler" is written incorrectly in lower case.  5, record 19, English, - Doppler%20radar

Record number: 19, Textual support number: 3 OBS

Doppler radar: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).  6, record 19, English, - Doppler%20radar

Record 19,  Textual support,  French

Record number: 19, Textual support number: 1 DEF

Radar qui détecte tout déplacement d'une surface réfléchissante en mesurant le décalage de fréquence de l'énergie radio réfléchie dû au déplacement de l'observateur ou de la surface réfléchissante.  2, record 19, French, - radar%20Doppler

Record number: 19, Textual support number: 1 CONT

Le radar Doppler est [...] un équipement de navigation qui permet de connaître à tout instant la position de l'avion ou de l'hélicoptère qui le porte par la mesure de la vitesse au-dessus du sol.  4, record 19, French, - radar%20Doppler

Record number: 19, Textual support number: 1 OBS

radar Doppler : terme uniformisé par le Groupe de travail de terminologie de l'artillerie antiaérienne et par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  5, record 19, French, - radar%20Doppler

Record number: 19, Textual support number: 2 OBS

radar doppler : terme et définition normalisés par l'OTAN.  6, record 19, French, - radar%20Doppler

Record number: 19, Textual support number: 3 OBS

Dans le Glossaire OTAN, «Doppler» est écrit à tort en minuscules.  6, record 19, French, - radar%20Doppler

Record 19,  Textual support,  Spanish

Record number: 19, Textual support number: 1 DEF

Radar que detecta el movimiento relativo con respecto a una superficie de reflexión midiendo el cambio de fase de la energía de radiofrecuencia reflejada debida al movimiento del observador o de la superficie de reflexión.  1, record 19, Spanish, - radar%20doppler

Record 22,  Textual support,  English

Record number: 22, Textual support number: 1 DEF

The frequency shift observed at a receiver due to any relative motion between transmitter and receiver.  2, record 22, English, - Doppler%20shift

Record number: 22, Textual support number: 1 CONT

The Doppler frequency depends on the component of satellite velocity in the line-of-sight direction to the target. This direction changes with each satellite position along the flight path, so the Doppler frequency varies with azimuth time. For this reason, azimuth frequency is often referred to as Doppler frequency.  6, record 22, English, - Doppler%20shift

Record number: 22, Textual support number: 1 OBS

Doppler shift; Doppler frequency-shift : terms and definition officially approved by the International Civil Aviation Organization(ICAO).  8, record 22, English, - Doppler%20shift

Record number: 22, Textual support number: 2 OBS

Doppler shift: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).  9, record 22, English, - Doppler%20shift

Record 22,  Textual support,  French

Record number: 22, Textual support number: 1 DEF

Décalage de fréquence observé dans le récepteur, attribuable à tout déplacement de l'émetteur et du récepteur l'un par rapport à l'autre.  2, record 22, French, - d%C3%A9calage%20Doppler

Record number: 22, Textual support number: 1 OBS

déplacement Doppler-Fizeau : terme normalisé par l'AFNOR et reproduit avec son autorisation.  6, record 22, French, - d%C3%A9calage%20Doppler

Record number: 22, Textual support number: 2 OBS

décalage Doppler; décalage de fréquence par effet Doppler : termes et définition uniformisés par l'Organisation de l'aviation civile internationale (OACI).  6, record 22, French, - d%C3%A9calage%20Doppler

Record number: 22, Textual support number: 3 OBS

décalage Doppler : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  7, record 22, French, - d%C3%A9calage%20Doppler

Record 22,  Textual support,  Spanish

Record number: 22, Textual support number: 1 DEF

Desviación de frecuencia observada en un receptor debido al movimiento relativo de transmisor y receptor.  1, record 22, Spanish, - desviaci%C3%B3n%20Doppler

Record number: 22, Textual support number: 1 OBS

de desplazamiento de frecuencia.  2, record 22, Spanish, - desviaci%C3%B3n%20Doppler

Record number: 22, Textual support number: 2 OBS

desviación Doppler : término y definición aceptados oficialmente por la Organización de Aviación Civil Internacional (OACI).  3, record 22, Spanish, - desviaci%C3%B3n%20Doppler

Record 23,  Textual support,  English

Record number: 23, Textual support number: 1 DEF

A measurement of Doppler shift frequency or phase over time.  1, record 23, English, - integrated%20Doppler

Record number: 23, Textual support number: 1 OBS

Term and definition provided by the Canadian Hydrographic Service.  1, record 23, English, - integrated%20Doppler

Record 23,  Textual support,  French

Record number: 23, Textual support number: 1 DEF

Mesure de décalage par effet Doppler de la fréquence ou de la phase en fonction du temps.  1, record 23, French, - Doppler%20int%C3%A9gr%C3%A9

Record 23,  Textual support,  Spanish

Record 24,  Textual support,  English

Record number: 24, Textual support number: 1 DEF

The unwanted change in waveform which occurs between two points in a transmission system. If the particular requirement is not met, distortion is present.  2, record 24, English, - distortion

Record number: 24, Textual support number: 1 OBS

The distortion may result from a non-linear relation between input and output, a non-uniform transmission at different frequencies or phase shift not proportional to frequency.  3, record 24, English, - distortion

Record number: 24, Textual support number: 2 OBS

distortion: term standardized by the USA Standards Institute and the International Electrotechnical Commission.  4, record 24, English, - distortion

Record 24,  Textual support,  French

Record number: 24, Textual support number: 1 DEF

Déformation d'une onde au cours de sa transmission, défavorable pour son utilisation. Si la tension d'entrée est sinusoïdale, la tension de sortie ne l'est pas.  1, record 24, French, - distorsion

Record number: 24, Textual support number: 1 OBS

Les bruits et les changements désirés ne doivent pas être considérés comme de la distorsion.  3, record 24, French, - distorsion

Record number: 24, Textual support number: 2 OBS

distorsion : terme normalisé par la Commission électrotechnique the Internationale.  3, record 24, French, - distorsion

Record 24,  Textual support,  Spanish

Record number: 24, Textual support number: 1 DEF

Deformación de una señal, que origina una diferencia entre los parámetros de la señal transmitida y la recibida, tales como su amplitud, frecuencia, fase, etc.  1, record 24, Spanish, - distorsi%C3%B3n

Record number: 24, Textual support number: 1 CONT

Puede desearse que a la salida de un sistema de transmisión las ondas tengan la misma forma de onda que en el origen, o que tengan una forma determinada, diferente a la de las ondas emitidas; si las condiciones deseadas no se cumplen, hay distorsión.  1, record 24, Spanish, - distorsi%C3%B3n

Record 25,  Textual support,  English

Record number: 25, Textual support number: 1 DEF

A graphof dß/d omega for the transmission path over the range of frequencies of interest, where ß is the insertion phase shift expressed in radians at a certain frequency and omega the angular velocity expressed in radians per second.  2, record 25, English, - group%20delay%20characteristic

Record number: 25, Textual support number: 1 OBS

If dß/d omega is constant over the band of frequencies requied for a particular waveform the envelope of the waveform is transmitted without distortion and the time of propagation of a characteristic feature of the wave envelope, e.g. the crest, is equal to the group delay.  2, record 25, English, - group%20delay%20characteristic

Record 25,  Textual support,  French

Record number: 25, Textual support number: 1 DEF

Loi de la variation de dß/d omega pour une voie de transmission sur toute la gamme de fréquences dont il s'agit, ß étant le déphasage linéique, exprimé en radians, à une fréquence donnée, et omega étant la vitesse angulaire, exprimée en radians par seconde.  1, record 25, French, - caract%C3%A9ristique%20de%20temps%20de%20propagation%20de%20groupe

Record number: 25, Textual support number: 1 OBS

Si l'expression dß/d omega reste constante pour toute la bande de fréquences qui produit une certaine forme d'onde, la transmission de l'enveloppe de la forme d'onde se fait sans distorsion, le temps de propagation d'un certain point (par exemple la crête) de l'enveloppe étant égal au temps de propagation de groupe.  1, record 25, French, - caract%C3%A9ristique%20de%20temps%20de%20propagation%20de%20groupe

Record 25,  Textual support,  Spanish

Record number: 25, Textual support number: 1 DEF

Ley de la variación de dß/d omega para una vía de transmisión sobre toda la gama de frecuencias que se trata, siendo ß el desplazamiento de fase de inserción, expresado en radianes, a una frecuencia determinada y omega la velocidad angular, expresada en radianes por segundo.  1, record 25, Spanish, - caracter%C3%ADstica%20de%20retardo%20de%20grupo

Record number: 25, Textual support number: 1 OBS

Si dß/d omega permanece constante para toda la banda de frecuencias que produce una forma de onda determinada, la transmisión del envolvente de la forma de onda se hace sin distorsión, siendo el tiempo de propagación de un punto determinado (por ejemplo, la cresta) igual al tiempo de propagación de grupo.  1, record 25, Spanish, - caracter%C3%ADstica%20de%20retardo%20de%20grupo

Record 26,  Textual support,  English

Record number: 26, Textual support number: 1 DEF

The time equal to the phase shift(expressed in radians) between two points between which there is propagation, divided by the angular frequency(in radians per second).  2, record 26, English, - phase%20delay

Record 26,  Textual support,  French

Record number: 26, Textual support number: 1 DEF

Quotient du déphasage (exprimé en radians) entre deux points entre lesquels existe une propagation par la pulsation (exprimée en radians par seconde).  1, record 26, French, - temps%20de%20propagation%20de%20phase

Record 26,  Textual support,  Spanish

Record number: 26, Textual support number: 1 DEF

Cociente del desplazamiento de fase, expresado en radianes, entre dos puntos entre los cuales hay propagación, dividido por la frecuencia angular, en radianes por segundo.  2, record 26, Spanish, - tiempo%20de%20propagaci%C3%B3n%20de%20fase

Record 27,  Textual support,  English

Record number: 27, Textual support number: 1 DEF

The time of propagation between two points of a certain point, e.g. the crest, of the envelope of a wave.  2, record 27, English, - group%20delay

Record number: 27, Textual support number: 1 OBS

For a given frequency, it is equal to the first derivative of the phase shift measured in radians between these points, with reference to the angular frequency expressed in radians per second.  2, record 27, English, - group%20delay

Record 27,  Textual support,  French

Record number: 27, Textual support number: 1 DEF

Temps que met, pour se propager entre deux déplacements déterminés, un certain point (par exemple la crête) de l'enveloppe d'un groupe de deux ondes sinusoïdales de fréquences très peu différentes.  1, record 27, French, - temps%20de%20propagation%20de%20groupe

Record number: 27, Textual support number: 1 OBS

Pour une fréquence déterminée, ce temps est égal à la dérivée du déphasage entre ces emplacements, exprimé en radians, par rapport à la pulsation correspondant à cette fréquence.  1, record 27, French, - temps%20de%20propagation%20de%20groupe

Record 27,  Textual support,  Spanish

Record number: 27, Textual support number: 1 DEF

Tiempo que tarda en propagarse entre dos emplazamientos determinados, un punto determinado (p. ej. la cresta) de la envolvente de dos ondas sinusoidales de frecuencias muy poco diferentes.  2, record 27, Spanish, - retardo%20de%20grupo

Record 28,  Textual support,  English

Record number: 28, Textual support number: 1 DEF

A data-only VDL mode using a GFSK [gaussian-filtered frequency shift keying] modulation scheme and self-organizing time division multiple access. [Definition officially approved by ICAO. ]  1, record 28, English, - Mode%204

Record number: 28, Textual support number: 1 OBS

Mode 4: term officially approved by the International Civil Aviation Organization (ICAO).  2, record 28, English, - Mode%204

Record 28,  Textual support,  French

Record number: 28, Textual support number: 1 DEF

Mode de communication de données de la VDL qui utilise la modulation GFSK et l'accès multiple par répartition dans le temps autogéré. [Définition uniformisée par l'OACI.]  1, record 28, French, - mode%204

Record number: 28, Textual support number: 1 OBS

mode 4 : terme uniformisé par l'Organisation de l'aviation civile internationale (OACI).  2, record 28, French, - mode%204

Record 28,  Textual support,  Spanish

Record number: 28, Textual support number: 1 DEF

Un modo VDL sólo de datos que utiliza un plan de modulación por desplazamiento de frecuencia con filtro gaussiano D8PS/L y acceso múltiple por división en el tiempo autoorganizado. [Definición aceptada oficialmente por la OACI.]  1, record 28, Spanish, - Modo%204

Record number: 28, Textual support number: 1 OBS

Modo 4: término aceptado oficialmente por la Organización de Aviación Civil Internacional (OACI).  2, record 28, Spanish, - Modo%204

Record 29,  Textual support,  English

Record number: 29, Textual support number: 1 DEF

A continuous-phase, frequency shift keying technique using two tones and a Gaussian pulse shape filter. [Definition officially approved by ICAO. ]  1, record 29, English, - Gaussian%20filtered%20frequency%20shift%20keying

Record number: 29, Textual support number: 1 OBS

Gaussian filtered frequency shift keying; GFSK : term and abbreviation officially approved by the International Civil Aviation Organization(ICAO).  2, record 29, English, - Gaussian%20filtered%20frequency%20shift%20keying

Record 29,  Textual support,  French

Record number: 29, Textual support number: 1 DEF

Technique de modulation par déplacement de fréquence avec continuité de phase utilisant deux tonalités et un filtre de forme d'impulsion gaussien. [Définition uniformisée par l'OACI.]  1, record 29, French, - modulation%20de%20fr%C3%A9quence%20%C3%A0%20filtre%20gaussien

Record number: 29, Textual support number: 1 OBS

modulation de fréquence à filtre gaussien; GFSK : terme et abréviation uniformisés par l'Organisation de l'aviation civile internationale (OACI).  2, record 29, French, - modulation%20de%20fr%C3%A9quence%20%C3%A0%20filtre%20gaussien

Record 29,  Textual support,  Spanish

Record number: 29, Textual support number: 1 DEF

Técnica de fase continua de modulación por desplazamiento de frecuencia que utiliza dos tonos y un filtro de forma de impulso gaussiano. [Definición aceptada oficialmente por la OACI.]  1, record 29, Spanish, - modulaci%C3%B3n%20por%20desplazamiento%20de%20frecuencia%20con%20filtro%20gaussiano

Record number: 29, Textual support number: 1 OBS

modulación por desplazamiento de frecuencia con filtro gaussiano; GFSK: término y abreviatura aceptados oficialmente por la Organización de Aviación Civil Internacional (OACI).  2, record 29, Spanish, - modulaci%C3%B3n%20por%20desplazamiento%20de%20frecuencia%20con%20filtro%20gaussiano

Record 30,  Textual support,  English

Record number: 30, Textual support number: 1 CONT

The Sagnac effect... is understood as a phase shift of one counterpropagating wave with respect to another wave of this mode in a rotating ring interferometer, the shift being directly proportional to the angular velocity of rotation, the area enclosed by the interferometer, and the wave frequency. The Sagnac effect applies to a kinematic effect of the special theory of relativity(STR) and... ensues from the relativistic law of velocity composition.  2, record 30, English, - rotating%20ring%20interferometer

Record number: 30, Textual support number: 2 CONT

In the present development, the principle of operation of the ring laser gyro will be based on the "Sagnac Effect" rotating ring interferometer.  3, record 30, English, - rotating%20ring%20interferometer

Record 30,  Textual support,  French

Record number: 30, Textual support number: 1 CONT

Le but de notre expérience est de mesurer une accélération angulaire. Pour ce faire, un interféromètre à effet Sagnac sera utilisé. Il s'agit d'un dispositif expérimental permettant l'analyse d'une figure d'interférence produite par un faisceau laser. Le faisceau est coupé en deux par un miroir semi-transparent et, à la différence de l'interféromètre de Michelson, le trajet suivi par les rayons est circulaire. Chaque rayon tourne dans un sens différent et donc, selon l'état de rotation du système, le déphasage entre les rayons est sensible à l'accélération angulaire du dispositif. Quand l'interféromètre de Michelson permet de mesurer une accélération linéaire, l'interféromètre à effet Sagnac permet de mesurer une accélération angulaire. Le principe de cet effet correspond à un effet Doppler rotationnel. Il a été découvert par Sagnac en 1913. Cet interféromètre annulaire se résume en deux formules.  1, record 30, French, - interf%C3%A9rom%C3%A8tre%20annulaire

Record number: 30, Textual support number: 2 CONT

Calcul de la différence de marche pour un interféromètre de Sagnac circulaire (lois classiques).  2, record 30, French, - interf%C3%A9rom%C3%A8tre%20annulaire

Record 30,  Textual support,  Spanish

Record 31,  Textual support,  English

Record number: 31, Textual support number: 1 DEF

A form of frequency modulation in which the phase changes are smoothed considerably with respect to frequency shift keying without loss of information. In this way are avoided the phase discontinuities which cause out-of-band radiation.  2, record 31, English, - tamed%20frequency%20modulation

Record 31,  Textual support,  French

Record 31,  Textual support,  Spanish

Record number: 31, Textual support number: 1 DEF

Método de modulación de frecuencia en el que los cambios de fase se igualan considerablemente con respecto a la modulación por desplazamiento de frecuencia sin pérdida de información [evitando], de este modo, [...] las discontinuidades de fase que provocan.  1, record 31, Spanish, - modulaci%C3%B3n%20de%20frecuencia%20moderada

Record 32,  Textual support,  English

Record number: 32, Textual support number: 1 CONT

In the present development, the principle of operation of the ring laser gyro will be based on the "Sagnac effect" rotating ring interferometer.  1, record 32, English, - Sagnac%20effect%20rotating%20ring%20interferometer

Record number: 32, Textual support number: 1 OBS

The Sagnac effect... is understood as a phase shift of one counterpropagating wave with respect to another wave of this mode in a rotating ring interferometer, the shift being directly proportional to the angular velocity of rotation, the area enclosed by the interferometer, and the wave frequency. The Sagnac effect applies to a kinematic effect of the special theory of relativity(STR) and... ensues from the relativistic law of velocity composition.  2, record 32, English, - Sagnac%20effect%20rotating%20ring%20interferometer

Record 32,  Textual support,  French

Record number: 32, Textual support number: 1 CONT

Calcul de la différence de marche pour un interféromètre de Sagnac circulaire (lois classiques).  1, record 32, French, - interf%C3%A9rom%C3%A8tre%20de%20Sagnac%20circulaire

Record number: 32, Textual support number: 1 OBS

Le but de notre expérience est de mesurer une accélération angulaire. Pour ce faire, un interféromètre à effet Sagnac sera utilisé. Il s'agit d'un dispositif expérimental permettant l'analyse d'une figure d'interférence produite par un faisceau laser. Le faisceau est coupé en deux par un miroir semi-transparent et, à la différence de l'interféromètre de Michelson, le trajet suivi par les rayons est circulaire. Chaque rayon tourne dans un sens différent et donc, selon l'état de rotation du système, le déphasage entre les rayons est sensible à l'accélération angulaire du dispositif. Quand l'interféromètre de Michelson permet de mesurer une accélération linéaire, l'interféromètre à effet Sagnac permet de mesurer une accélération angulaire. Le principe de cet effet correspond à un effet Doppler rotationnel. Il a été découvert par Sagnac en 1913. Cet interféromètre annulaire se résume en deux formules.  3, record 32, French, - interf%C3%A9rom%C3%A8tre%20de%20Sagnac%20circulaire

Record 32,  Textual support,  Spanish

Record 33,  Textual support,  English

Record number: 33, Textual support number: 1 DEF

A change in the frequency of a radio transmitter or oscillator.  2, record 33, English, - frequency%20shift

Record number: 33, Textual support number: 1 OBS

The change referred to in the above definition is almost instantaneous.  3, record 33, English, - frequency%20shift

Record number: 33, Textual support number: 2 OBS

frequency shift : term officially approved by the International Civil Aviation Organization(ICAO).  4, record 33, English, - frequency%20shift

Record 33,  Textual support,  French

Record number: 33, Textual support number: 1 DEF

Changement brusque de fréquence d'un émetteur ou d'un oscillateur.  2, record 33, French, - d%C3%A9placement%20de%20fr%C3%A9quence

Record number: 33, Textual support number: 1 OBS

déplacement de fréquence : terme uniformisé par l'Organisation de l'aviation civile internationale (OACI).  3, record 33, French, - d%C3%A9placement%20de%20fr%C3%A9quence

Record 33,  Textual support,  Spanish

Record number: 33, Textual support number: 1 OBS

desplazamiento de frecuencia : término aceptado oficialmente por la Organización de Aviación Civil Internacional (OACI).  2, record 33, Spanish, - desplazamiento%20de%20frecuencia

Record 34,  Textual support,  English

Record number: 34, Textual support number: 1 DEF

The periodic shift in localization which occurs when two tones of slightly different frequency are perceived separately by each ear.  1, record 34, English, - binaural%20shift

Record 34,  Textual support,  French

Record number: 34, Textual support number: 1 DEF

Impression de passage d'une source sonore d'une oreille à l'autre, obtenue en faisant agir un son sur une oreille et un son de fréquence très légèrement différente sur l'autre [...]  1, record 34, French, - son%20binaural%20glissant

Record 34,  Textual support,  Spanish

Record 35,  Textual support,  English

Record number: 35, Textual support number: 1 DEF

A form of frequency shift keying in which the signalling frequencies are integrally related to the data rate, and transitions between the signalling frequencies are made at zero crossings of the carrier waveform.  1, record 35, English, - phase%2Dcoherent%20FSK

Record number: 35, Textual support number: 1 OBS

phase-coherent FSK: term and definition reproduced with the permission of the copyright holder, the Canadian Standards Association (CSA), 178 Rexdale Blvd., Toronto, Ontario Canada M9W 1R3. However, CSA shall not be responsible for the manner in which the information is presented, nor for any interpretations thereof. This CSA material may not have been updated to reflect amendments subsequently made to the original content. For further information, contact CSA.  2, record 35, English, - phase%2Dcoherent%20FSK

Record 35,  Textual support,  French

Record number: 35, Textual support number: 1 DEF

Modulation par déplacement de fréquence dans laquelle les fréquences du signal de sortie sont des multiples entiers du débit, et les transitions entre fréquences sont effectuées aux passages à zéro de la porteuse.  1, record 35, French, - modulation%20par%20d%C3%A9placement%20de%20fr%C3%A9quence%20et%20coh%C3%A9rence%20de%20phase

Record number: 35, Textual support number: 1 OBS

modulation par déplacement de fréquence et cohérence de phase: terme et définition reproduits avec l'autorisation de l'Association canadienne de normalisation (CSA), 178, boul. Rexdale, Toronto (Ontario), Canada M9W 1R3 (détentrice des droits d'auteur). La CSA décline toute responsabilité quant à la façon dont la matière est présentée et quant à toute interprétation pouvant en découler. L'information reproduite pourrait ne pas être à jour. Pour plus de renseignements, communiquer avec la CSA.  2, record 35, French, - modulation%20par%20d%C3%A9placement%20de%20fr%C3%A9quence%20et%20coh%C3%A9rence%20de%20phase

Record 35,  Textual support,  Spanish

Record 36,  Textual support,  English

Record number: 36, Textual support number: 1 DEF

A form of frequency shift keying in which the transition between signalling frequencies is accomplished by a continuous change of frequency.  3, record 36, English, - phase%2Dcontinuous%20frequency%20shift%20keying

Record number: 36, Textual support number: 1 OBS

Phase-continuous FSK may be contrasted with the discontinuous replacement of one frequency by another, such as might be accomplished by a switch.  3, record 36, English, - phase%2Dcontinuous%20frequency%20shift%20keying

Record number: 36, Textual support number: 2 OBS

phase-continuous FSK: term and definition reproduced with the permission of the copyright holder, the Canadian Standards Association (CSA), 178 Rexdale Blvd., Toronto, Ontario Canada M9W 1R3. However, CSA shall not be responsible for the manner in which the information is presented, nor for any interpretations thereof. This CSA material may not have been updated to reflect amendments subsequently made to the original content. For further information, contact CSA.  4, record 36, English, - phase%2Dcontinuous%20frequency%20shift%20keying

Record number: 36, Textual support number: 3 OBS

phase-continuous frequency shift keying; phase-continuous FSK : terms standardized by ISO.  4, record 36, English, - phase%2Dcontinuous%20frequency%20shift%20keying

Record 36,  Textual support,  French

Record number: 36, Textual support number: 1 DEF

Modulation par déplacement de fréquence dans laquelle les transitions entre les fréquences des signaux se font par une variation continue de la fréquence.  2, record 36, French, - modulation%20par%20d%C3%A9placement%20de%20fr%C3%A9quence%20%C3%A0%20phase%20continue

Record number: 36, Textual support number: 1 OBS

La modulation par déplacement de fréquence à phase continue se distingue du remplacement brusque d'une fréquence par une autre, tel que celui obtenu par un commutateur.  2, record 36, French, - modulation%20par%20d%C3%A9placement%20de%20fr%C3%A9quence%20%C3%A0%20phase%20continue

Record number: 36, Textual support number: 2 OBS

modulation par déplacement de fréquence à phase continue : terme et définition reproduits avec l'autorisation de l'Association canadienne de normalisation (CSA), 178, boul. Rexdale, Toronto (Ontario), Canada M9W 1R3 (détentrice des droits d'auteur). La CSA décline toute responsabilité quant à la façon dont la matière est présentée et quant à toute interprétation pouvant en découler. L'information reproduite pourrait ne pas être à jour. Pour plus de renseignements, communiquer avec la CSA.  3, record 36, French, - modulation%20par%20d%C3%A9placement%20de%20fr%C3%A9quence%20%C3%A0%20phase%20continue

Record number: 36, Textual support number: 3 OBS

modulation par déplacement de fréquence à phase continue : terme normalisé par l'ISO.  3, record 36, French, - modulation%20par%20d%C3%A9placement%20de%20fr%C3%A9quence%20%C3%A0%20phase%20continue

Record 36,  Textual support,  Spanish

Record 37,  Textual support,  English

Record number: 37, Textual support number: 1 CONT

The IF preamplifier output contains products of the mixing process which are at the FM modulating frequency with the Doppler shift added....  2, record 37, English, - modulating%20frequency

Record 37,  Textual support,  French

Record 37,  Textual support,  Spanish

Record 38,  Textual support,  English

Record number: 38, Textual support number: 1 CONT

Simple ciphers such as the three-letter shift favoured by Julius Caesar(so that every plain text "A" is encrypted as a "D") can be solved by examining the letter distribution for frequency of occurrence as well as tendencies to double, form combinations and start or end a word.  1, record 38, English, - form%20combinations

Record 38,  Textual support,  French

Record number: 38, Textual support number: 1 CONT

[...] sont faciles à décrypter en examinant la distribution des lettres : fréquence, voyelles doubles, diphtongues, première et dernière lettre des mots, etc.  1, record 38, French, - diphtongues

Record 38,  Textual support,  Spanish

Record 39,  Textual support,  English

Record number: 39, Textual support number: 1 CONT

Simple ciphers such as the three-letter shift favoured by Julius Caesar(so that every plain text "A" is encrypted as a "D") can be solved by examining the letter distribution for frequency of occurrence as well as tendencies to double, form combinations and start or end a word.  1, record 39, English, - frequency%20of%20occurrence

Record 39,  Textual support,  French

Record number: 39, Textual support number: 1 CONT

[...] sont faciles à décrypter en examinant la distribution des lettres : fréquence, voyelles doubles, diphtongues, première et dernière lettre des mots, etc.  1, record 39, French, - fr%C3%A9quence

Record 39,  Textual support,  Spanish

Record 40,  Textual support,  English

Record number: 40, Textual support number: 1 CONT

Fig. 8.-8a) Vertebral occlusion at the origin : The Doppler frequency shift could not be detected in the longitudinal segment C4-C5 of the vertebral artery on the B-mode image.(In JEMU Journal d’Échographie et de Médecine par Ultrasons, 1992, vol. 13, 5-6, p. 258)  1, record 40, English, - Doppler%20frequency%20shift

Record 40,  Textual support,  French

Record number: 40, Textual support number: 1 CONT

Figure 8. - 8a) Occlusion de la vertébrale à son origine. Le changement de fréquence du Doppler n'a pu être décelé dans le segment longitudinal C4-C5 de l'artère vertébrale, analysé en B-mode. (Relevé dans JEMU Journal d'Échographie et de Médecine par Ultrasons, 1992, volume 13, 5-6, page 258)  1, record 40, French, - changement%20de%20fr%C3%A9quence%20du%20Doppler

Record 40,  Textual support,  Spanish

Record 41,  Textual support,  English

Record number: 41, Textual support number: 1 DEF

The difference between the phase of the incoming Doppler-shifted GPS carrier and the phase of a nominally constant reference frequency generated in the receiver.  1, record 41, English, - reconstructed%20carrier%20phase

Record number: 41, Textual support number: 1 OBS

For static positioning, the reconstructed carrier phase is sampled at epochs determined by a clock in the receiver. The reconstructed carrier phase changes according to the continuously integrated Doppler shift of the incoming signal, biased by the integral of the frequency offset between the satellite and receiver reference oscillators. The reconstructed carrier phase can be related to the satellite-to-receiver range, once the initial range(or phase ambiguity) has been determined. A change in the satellite-to-receiver range of one wavelength of the GPS carrier(19 cm for L1) will result in a one-cycle change in the phase of the reconstructed carrier.  1, record 41, English, - reconstructed%20carrier%20phase

Record number: 41, Textual support number: 2 OBS

Term and definition provided by the Canadian Hydrographic Service.  1, record 41, English, - reconstructed%20carrier%20phase

Record 41,  Textual support,  French

Record number: 41, Textual support number: 1 DEF

La différence entre la phase de la porteuse GPS dont la fréquence est décalée par effet Doppler et la phase d'une fréquence de référence nominalement constante produite par le récepteur.  1, record 41, French, - phase%20reconstitu%C3%A9e%20de%20la%20porteuse

Record number: 41, Textual support number: 1 OBS

Aux fins du positionnement statique, la phase reconstituée de la porteuse est échantillonnée suivant des époques déterminées d'après une horloge dans le récepteur. La phase reconstituée de la porteuse varie en fonction du décalage Doppler, intégré de manière ininterrompue, modifié par l'intégrale du décalage de fréquence entre les oscillateurs de référence du récepteur et du satellite. La phase reconstituée de la porteuse peut être mise en relation avec la distance satellite-récepteur une fois la distance initiale (ambiguïté de phase) déterminée. Une modification de la distance satellite-récepteur égale à une longueur d'onde de la porteuse du GPS (19 cm pour L1) résulte en une modification égale à un cycle de la phase reconstituée de la porteuse.  1, record 41, French, - phase%20reconstitu%C3%A9e%20de%20la%20porteuse

Record 41,  Textual support,  Spanish

Record 42,  Textual support,  English

Record number: 42, Textual support number: 1 CONT

the Bristol scrambler effectively provides enhanced voice quality and security, compared to other standard frequency and/or time shift scrambler systems.  1, record 42, English, - time%20shift%20scrambler%20system

Record 42,  Textual support,  French

Record 42,  Textual support,  Spanish

Record 43,  Textual support,  English

Record number: 43, Textual support number: 1 CONT

When the exciting radiation falls within the frequency range of a molecule's absorption band in the visible or ultra-violet spectrum the radiation may be scattered by two different processes, resonance fluorescence or the resonance Raman effect. Both these processes give much more intense scattering than the normal nonresonant Raman effect.... The absolute frequencies of the resonance Raman effect... shift by exactly the amount of any shift in the exciting frequency, just as do those of the normal Raman effect. Thus the main characteristic of the resonance as compared to the normal Raman effect is its intensity, which may be greater by two or three orders of magnitude.  1, record 43, English, - resonance%20Raman%20effect

Record 43,  Textual support,  French

Record number: 43, Textual support number: 1 CONT

Effet Raman de résonance. La diffusion Raman de résonance est un cas particulier de l'effet Raman qui intervient lorsque la longueur d'onde de la radiation excitatrice est voisine de celle d'une transition électronique de la molécule étudiée. [...] La diffusion Raman de résonance est principalement caractérisée par l'exaltation très importante des intensités jusqu'à un facteur 10⁶ de certains pics correspondant aux vibrations du chromophose, c'est-à-dire la partie de la molécule qui est impliquée dans la transition électronique.  1, record 43, French, - effet%20Raman%20de%20r%C3%A9sonance

Record 43,  Textual support,  Spanish

Record 44,  Textual support,  English

Record number: 44, Textual support number: 1 DEF

A facsimile device which changes the type of modulation from frequency shift to amplitude(Receiving). A facsimile device which changes the type of modulation from amplitude to frequency shift(Transmitting).  2, record 44, English, - facsimile%20converter

Record 44,  Textual support,  French

Record 44,  Textual support,  Spanish

Record 45,  Textual support,  English

Record number: 45, Textual support number: 1 CONT

The laser(or lidar) velocimeter [lidar=light radar] operates in a fashion entirely analogous to that of the airborne Doppler weather radars likely soon to be available for detecting turbulence in storm cells. As with radars, the device detects air movements by observing the motion of particles suspended in the air and carried with it. The only significant difference is that a beam of coherent infrared radiation is used to scan ahead of the aircraft, instead of a beam(or series of pulses) of radio energy in the considerably longer-wavelength microwave band. The frequency of the back-scattered echoes or reflections undergoes Doppler shift detection by standard heterodyning techniques, which involve comparing the frequency of the reflected illumination with that of the original laser beam. Any reflecting object or material which has motion relative to the transmitter/receiver will cause a detectable shift in frequency, which can be isolated from the transmitter's own proper motion(over the ground) and thus yield a precise indication of the speed at which the air is moving several hundred metres in front of the aircraft. From this data, it is easy to compute what the air speed of the aircraft will be when it reaches that particular patch of air in a few seconds’ time [and hence detect possible turbulence ahead].  2, record 45, English, - laser%20velocimeter

Record 45,  Textual support,  French

Record number: 45, Textual support number: 1 CONT

Le principe de fonctionnement du vélocimètre à laser (ou lidar) est exactement le même que celui des radars météorologiques Doppler de bord, qui doivent être mis en service prochainement pour la détection des turbulences dans les systèmes d'orages.  1, record 45, French, - v%C3%A9locim%C3%A8tre%20%C3%A0%20laser

Record 45,  Textual support,  Spanish

Record 46,  Textual support,  English

Record number: 46, Textual support number: 1 DEF

an anti-intrusion detection device which utilizes the phase/frequency shift; frequency range is sonic; a sensitive monitor receives shapes from stationary objects in a specified area; motion interrupting these echoes causes an alarm to be transmitted.  1, record 46, English, - sonic%20alarm

Record 46,  Textual support,  French

Record 46,  Textual support,  Spanish

Record 47,  Textual support,  English

Record number: 47, Textual support number: 1 CONT

The most important consequence of the extraordinary sharpness of nuclear magnetic resonance (NMR) lines in liquids, caused by motion narrowing, is the possibility of measuring the chemical shifts; that is, the separation between NMR lines from nuclear spins of the same species but in different molecular environments.  2, record 47, English, - chemical%20shift

Record number: 47, Textual support number: 2 CONT

The extensive use of NMR in molecular structure determinations arises from the slight shift in the resonance frequency of an atom-commonly that of a proton-due to the environment of neighboring atoms. Because the magnitude of this shift depends on the type of environment, it is called the chemical shift.  3, record 47, English, - chemical%20shift

Record 47,  Textual support,  French

Record number: 47, Textual support number: 1 CONT

Résonance magnétique nucléaire (R.M.N.). Les spectres de résonance nucléaire mettent en évidence les différences d'énergie des spins nucléaires des molécules en présence d'un champ magnétique. Les raies spectrales correspondantes qui se trouvent dans le domaine hertzien pour des champs de quelques milliers de gauss permettent d'atteindre deux grandeurs moléculaires importantes : les déplacements chimiques (...) qui sont dus à la création de champs magnétiques locaux, légèrement différents du champ magnétique appliqué, liés au moment diamagnétique induit de la molécule. La méthode est très sensible à de toutes petites modifications de ce champ local, de telle sorte que les raies de résonance de chaque noyau dépendent fortement de leur environnement chimique.  2, record 47, French, - d%C3%A9placement%20chimique

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, - audio%20frequency%20signal

Record 48,  Textual support,  French

Record 48,  Textual support,  Spanish

Record 49,  Textual support,  English

Record number: 49, Textual support number: 1 CONT

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

Record 49,  Textual support,  French

Record 49,  Textual support,  Spanish

Record 50,  Textual support,  English

Record number: 50, Textual support number: 1 OBS

The transmission signals are audio frequency shift keyed(AFSK) mark and space tone signals.  1, record 50, English, - tone%20signal

Record 50,  Textual support,  French

Record 50,  Textual support,  Spanish

Record 51,  Textual support,  English

Record number: 51, Textual support number: 1 CONT

The difference between the transmitted and received(true and apparent) frequencies is referred to as the Doppler frequency shift or, more commonly, as the Doppler frequency.  1, record 51, English, - apparent%20frequency

Record 51,  Textual support,  French

Record number: 51, Textual support number: 1 CONT

(Le) procédé de détection (par émission en ondes modulées en impulsions) est basé sur le fait que la fréquence apparente du rayonnement qui parvient à une station fixe se trouve modifiée lorsque la source de rayonnement est en mouvement par rapport à la station.  1, record 51, French, - fr%C3%A9quence%20apparente

Record 51,  Textual support,  Spanish

Record 52,  Textual support,  English

Record number: 52, Textual support number: 1 OBS

The difference between the transmitted and received(true and apparent) frequencies is referred to as the Doppler frequency shift or, more commonly, as the Doppler frequency.  1, record 52, English, - true%20frequency

Record 52,  Textual support,  French

Record number: 52, Textual support number: 1 OBS

Quand la source se rapproche de l'observateur, la fréquence apparente est plus élevée que la fréquence réellement rayonnée et le contraire se produit quand la source s'éloigne.  2, record 52, French, - fr%C3%A9quence%20vraie

Record 52,  Textual support,  Spanish