TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

SIGNAL ADVANTAGE [13 records]

Record 1 2023-10-31

English

Subject field(s)
  • Sonar and Underwater Detection (Military)
  • Acoustics (Physics)
CONT

[A] depth finder puts out a constant amount of power. It does not matter where... the gain level [is] set. Gain simply controls how much... the signal that is bounced off of the bottom [is amplified]. Therefore, a narrow beam transducer will appear to be much more powerful than a wide beam transducer. This is because [the] same amount of power [is applied] into a smaller area. This can be an advantage [for] fishing in deep water... A narrow beam transducer can be overpowering in shallow water.

French

Domaine(s)
  • Sonar et détection sous-marine (Militaire)
  • Acoustique (Physique)

Spanish

Save record 1

Record 2 2023-02-10

English

Subject field(s)
  • Electronic Devices
  • Simulation (Cybernetic Systems)
CONT

The digital signal simulator has the advantage of being scalable and extensible, so a digital circuit-based structure is introduced.

French

Domaine(s)
  • Dispositifs électroniques
  • Simulation (Systèmes cybernétiques)

Spanish

Save record 2

Record 3 2015-09-09

English

Subject field(s)
  • Optics
  • Biophysics
  • Scientific Instruments
DEF

... an imaging technique for producing an image based on the differences in the exponential decay rate of the fluorescence from a fluorescent sample.

CONT

The lifetime of the fluorophore signal, rather than its intensity, is used to create the image in FLIM. This has the advantage of minimizing the effect of photon scattering in thick layers of sample.

French

Domaine(s)
  • Optique
  • Biophysique
  • Instruments scientifiques
DEF

[...] technique consistant à mesurer les temps de vie de fluorescence d'un fluorophore pour chaque pixel de l'image.

OBS

[Les fluorophores] ne sont alors plus détectés selon leurs longueurs d'ondes d'émission mais seulement selon leur temps de vie.

Spanish

Save record 3

Record 4 2013-12-19

English

Subject field(s)
  • Scientific Instruments
  • Photoelectricity and Electron Optics
CONT

Scanning transmission electron microscopy(STEM) combines the principles of transmission electron microscopy and scanning electron microscopy and can be performed on either type of instrument. Like TEM [transmission electron microscopy], STEM requires very thin samples and looks primarily at beam electrons transmitted by the sample. One of its principal advantages over TEM is in enabling the use of other signals that cannot be spatially correlated in TEM, including secondary electrons, scattered beam electrons, characteristic X-rays, and electron energy loss. Like SEM [scanning electron microscopy], the STEM technique scans a very finely focused beam of electrons across the sample in a raster pattern. Interactions between the beam electrons and sample atoms generate a serial signal stream, which is correlated with beam position to build a virtual image in which the signal level at any location in the sample is represented by the gray level at the corresponding location in the image. Its primary advantage over conventional SEM imaging is the improvement in spatial resolution.

French

Domaine(s)
  • Instruments scientifiques
  • Photo-électricité et optique électronique
CONT

Caractérisation des nanomatériaux par microscopie électronique à transmission et à balayage : résolution, analyse X, diffraction électronique, topographie et cartographie.

Spanish

Campo(s) temático(s)
  • Instrumentos científicos
  • Fotoelectricidad y óptica electrónica
CONT

El grupo de investigación [...] ha desarrollado un nuevo método de fabricación de nanoagujas localizadas en el interior de muestras de distintos materiales, que presentan un amplio rango de aplicaciones, como la preparación de muestras para análisis por microscopía electrónica de transmisión (TEM) y transmisión-barrido (STEM), para técnicas de microscopía óptica de barrido de campo cercano, tomografía electrónica y microscopía de sonda atómica.

OBS

STEM: por su sigla en inglés (scanning transmission electron microscopy).

Save record 4

Record 5 2009-11-20

English

Subject field(s)
  • Radio Transmission and Reception
  • Telecommunications Transmission
CONT

It was these days when the suppressor grid modulation became very popular utilizing the advantage of pentode for getting an amplitude modulation when the signal of voice frequencies is superposed to the suppressor grid. On the other hand, in those applications where suppressor grid modulation was not required, the presence of the suppressor grid made the structure of the transmitting tube more complex and also increased the inter-electrode capacities.

French

Domaine(s)
  • Émission et réception radio
  • Transmission (Télécommunications)
DEF

Modulation d'amplitude réalisée par application du signal modulant à la grille suppresseuse d'une pentode dans laquelle cette grille n'est pas reliée à la cathode et est mise à la masse en courant alternatif par un condensateur.

OBS

Le terme «modulation par la grille d'arrêt» est utilisé [dans certains émetteurs radio à tubes électriques].

Spanish

Campo(s) temático(s)
  • Radiotransmisión y radiorrecepción
  • Transmisión (Telecomunicaciones)
DEF

Modulación de amplitud que se efectúa aplicando la señal moduladora a la rejilla supresora de una válvula.

Save record 5

Record 6 2008-08-01

English

Subject field(s)
  • Telephones
  • Satellite Telecommunications
DEF

A mobile phone that sends and receives calls using satellites rather than landlines or cellular broadcasting towers.

CONT

The advantage of a satellite phone is that it can complete calls from anywhere... A disadvantage of a satellite phone is a noticeable delay in conversations. The signal must first travel to the satellite, then to an earthbound gateway before being routed to the receiver. The receiver's response will follow the same path in reverse...

Key term(s)
  • sat-phone

French

Domaine(s)
  • Téléphones
  • Télécommunications par satellite
CONT

Dans une zone non couverte par le réseau cellulaire [...] l'appareil se transforme automatiquement en téléphone satellite [...] l'utilisateur doit se trouver dans le rayon d'un ou des satellites orbitant au-dessus de sa tête; un immeuble et même un arbre peuvent devenir des obstacles empêchant toute communication. Un téléphone satellite ne fonctionne tout simplement pas à l'intérieur d'un édifice.

Spanish

Campo(s) temático(s)
  • Teléfonos
  • Telecomunicaciones por satélite
CONT

El teléfono satelital opera siempre que se encuentre en la intemperie y sin nada que se interponga entre la antena y la señal proveniente del satélite. En un lugar cerrado como una edificación o vehículo se necesita de una antena auxiliar instalada en el exterior del mismo.

Save record 6

Record 7 2006-06-08

English

Subject field(s)
  • Telecommunications Switching
DEF

A method of switching that provides a separate path for each of the simultaneous calls

OBS

The advantage of space division is its simplicity and the fact that the bandwidth of the signal is not unduly limited by the switch mechanism...

French

Domaine(s)
  • Commutation (Télécommunications)
DEF

Commutation dans laquelle chaque itinéraire établi à travers le central est affecté à une communication et une seule pendant toute la durée de celle-ci (les diverses communications établies ayant des trajets différents dans l'espace).

OBS

La commutation spatiale peut s'appliquer à des signaux analogiques ou à des signaux numériques.

OBS

Lorsque les signaux commutés sont multiplexés dans le temps, des étages de commutation spatiale peuvent être constitués par des portes électroniques multiplexées dans le temps. Un tel étage utilisant la commutation spatiale multiplexée est un élément d'un autocommutateur temporel et est appelé «étage 5».

OBS

Le terme «commutation spatiale» ne doit pas être utilisé pour désigner une commutation quelconque à bord d'un satellite de télécommunication.

Spanish

Campo(s) temático(s)
  • Conmutación (Telecomunicaciones)
Save record 7

Record 8 2004-09-24

English

Subject field(s)
  • Weather Stations and Meteorological Instruments and Equipment
  • Launching and Space Maneuvering
CONT

Circuit of electric field measurements of thunderclouds.... The electric field mill is a device based on electrostatic induction. It consists of one or two electrodes which either rotate in an electrostatic field or become periodically exposed to a field by rotating vanes. Fig. 46 illustrates a cylindrical field mill which consists of two cylinder halves that are electrically insulated from each other. An electric motor rotates the two halves in the electric field to be measured so that they become alternately exposed to both the positive and negative direction of the field. The result is that an alternating(ac) signal is generated across the two halves which can be easily amplified.... Although not commonly used, the cylindrical field mill has the advantage that when mounted in a fixed position it can also indicate the direction of the field. This is accomplished by measuring the phase shift of the ac signal relative to the orientation of electric fields need to be measured.

CONT

The device normally used to measure atmospheric electric fields is a type of sensor called an electric field mill. It can be used on the ground to gain information about the field aloft, or it can be flown on an airplane or balloon. Thirty-one ground-based field mills at Cape Canaveral Air Force Station and the Kennedy Space Center are used to measure the electric field just above the surface of Earth, in the lowest meter of the atmosphere, and determine if it meets the safety levels specified in the Lightning Launch Commit Criteria. The small, cylindrical field mill is mounted upside down.

French

Domaine(s)
  • Stations, instruments et équipements météorologiques
  • Lancement et manœuvres dans l'espace

Spanish

Save record 8

Record 9 2002-03-28

English

Subject field(s)
  • Radar, Radio Guidance and Goniometry
  • Spacecraft
CONT

In a long synthetic aperture (array), SAR focusing involves the removal and compensation of path length differences from the antenna to the target on the ground.

CONT

The main advantage of a focused synthetic aperture is that it increases its array length over those radar signals that can be processed, and thus increases potential SAR resolution at any range. SAR focusing is a necessary process when the length of a synthetic array is a significant fraction of the range to ground being imaged, as the lines-of-sight(range) from a particular point on the ground to each individual element of the array differ in distance. These range differences, or path length differences, of the radar signals can affect image quality. In a focused SAR image these phase errors can be compensated for by applying a phase correction to the return signal at each synthetic aperture element. Focusing errors may be introduced by unknown or uncorrected platform motion. In an unfocused SAR image, the usable synthetic aperture length is quite limited.

OBS

SAR focusing: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).

French

Domaine(s)
  • Radar, radioguidage et radiogoniométrie
  • Engins spatiaux
DEF

Élimination et compensation des différences de trajectoires entre l'antenne et la cible au sol.

OBS

focalisation SAR : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).

Spanish

Save record 9

Record 10 2001-09-10

English

Subject field(s)
  • Aircraft Piloting and Navigation
  • River and Sea Navigation
  • Cartography
  • Technical Surveys
CONT

Inertial Positioning Devices-the goal is for a device that works independent of outside signals and sources. Integrates gyroscopes, accelerometers, and computers to keep track of position. Remain very expensive. Nuclear submarines use this type of system. The advantage for military applications is that the signal(doesn’t require one) cannot be jammed by enemy forces.

French

Domaine(s)
  • Pilotage et navigation aérienne
  • Navigation fluviale et maritime
  • Cartographie
  • Levés et relevés techniques (Arpentage)
CONT

Ce n'est que très récemment que l'on a vu apparaître des solutions à ces difficultés [de positionnement imprécis]. Elles sont de deux types : d'une part le positionnement par satellites (ou GPS), sensible aux conditions extérieures et au brouillage, et d'autre part, le positionnement par inertie [...]

Spanish

Save record 10

Record 11 1998-11-19

English

Subject field(s)
  • Currency and Foreign Exchange
CONT

After wars, governments have always returned to gold to take advantage of its utility as a monetary signal. In doing so, they must face the problem of returning at the optimum price which is not easy because it is a subjective decision.

French

Domaine(s)
  • Politique monétaire et marché des changes
CONT

À l'issue des conflits, ils sont toujours revenus à l'or en raison de son utilité en tant que signal monétaire. Tout le problème consiste alors à retrouver son prix optimal ce qui, étant donné le caractère subjectif d'une telle décision n'est pas chose aisée.

Spanish

Save record 11

Record 12 1995-03-30

English

Subject field(s)
  • Television (Radioelectricity)
  • Marketing
OBS

The video-on-demand model takes advantage of some form of two-way communication between the home and the video source, which could be a low-bandwidth back channel on a CATV path or a phone line with sufficient bandwidth to carry a compressed video signal. The home may be furnished with a low-cost box, which accepts signals from a hand-held control and which transmits the appropriate status to the video control center. The viewer uses the hand-held control to navigate a selection menu and choose a program. Shortly after the selection is made, the program begins playing. During the course of the movie the viewer is able to pause, reposition, and use other VCR-like controls.

French

Domaine(s)
  • Télévision (Radioélectricité)
  • Commercialisation
DEF

Chaîne de télévision offrant des films sur commande par un client à la maison. Le ou les films sélectionnés sont tarifés mensuellement à l'abonné.

Spanish

Save record 12

Record 13 1994-02-28

English

Subject field(s)
  • Crop Protection
  • Biochemistry
DEF

A chemical signal produced by one species of animal which influences the behaviour of members of another to the advantage of the signaller.

French

Domaine(s)
  • Protection des végétaux
  • Biochimie
DEF

Substance allélochimique produite par les végétaux et qui participe à leur protection ou à leur défense contre les insectes ravageurs.

Spanish

Save record 13

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