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Fiche 1,  Justifications,  Anglais

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

Fiche 1,  Justifications,  Français

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, fiche 1, Français, - modulation%20par%20d%C3%A9placement%20de%20fr%C3%A9quence%20%C3%A0%20variation%20continue%20de%20phase

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 CONT

In analog frequency modulation, the data signal can be modulated through a continuously changing sine carrier signal.  2, fiche 2, Anglais, - analogue%20frequency%20modulation

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Fiche 2,  Justifications,  Espagnol

Fiche 3,  Justifications,  Anglais

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Phase-shift keying that is used for digital transmission in which the phase of the carrier is discretely varied ... in relation to the phase of the immediately preceding signal element and ... in accordance with the data being transmitted.  3, fiche 3, Anglais, - differential%20phase%20shift%20keying

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[Differential phase shift keying is] a common form of phase modulation used in analog modems.  4, fiche 3, Anglais, - differential%20phase%20shift%20keying

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differential phase shift keying; DPSK: term and abbreviation officially approved by the International Civil Aviation Organization (ICAO).  5, fiche 3, Anglais, - differential%20phase%20shift%20keying

Fiche 3,  Justifications,  Français

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modulation par déplacement de phase différentielle; MDPD : terme et abréviation uniformisés par l'Organisation de l'aviation civile internationale (OACI).  5, fiche 3, Français, - modulation%20par%20d%C3%A9placement%20de%20phase%20diff%C3%A9rentielle

Fiche 3,  Justifications,  Espagnol

Record number: 3, Textual support number: 1 DEF

Modulación en la cual la fase de la portadora varía discretamente en relación a la fase del elemento precedente y en función de los datos que se han de transmitir.  2, fiche 3, Espagnol, - manipulaci%C3%B3n%20por%20desplazamiento%20de%20fase%20diferencial

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manipulación por desplazamiento de fase diferencial; MDFD: término y abreviatura aceptados oficialmente por la Organización de Aviación Civil Internacional (OACI).  3, fiche 3, Espagnol, - manipulaci%C3%B3n%20por%20desplazamiento%20de%20fase%20diferencial

Fiche 4,  Justifications,  Anglais

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The utilization of the inactivity periods that always exist in both transmission directions of a telephone conversation. The interpolation is used in order to increase the efficiency and lower the cost of long distance links. Analog signals with quiescent periods or long vowels are compressed, for example by time assignment speech interpolation, transmitted, and expanded by inverse compression(expansion) at the receiving end. This principle... is now being developed for digital speech [and] when pulse code modulation is used, the process is known as digital speech interpolation.  1, fiche 4, Anglais, - analog%20speech%20interpolation

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Fiche 4,  Justifications,  Espagnol

Fiche 5,  Justifications,  Anglais

Record number: 5, Textual support number: 1 CONT

The gyros are used to maintain the platform’s inertial orientation by sensing rotations of the platform caused by vehicle-rotation-induced friction at the gimbal pivot points ... One gyro - called the vertical gyro - is oriented so its input axes are aligned with the X and Y platform axes; its input axes provide IMU [Inertial Measurement Unit] platform roll and pitch stabilization. The second gyro is oriented so that one input axis lies along the platform’s Z axis and the other lies in the X-Y plane. This gyro - the azimuth gyro - provides platform yaw stabilization with the Z input axis, while the second input axis is used as a platform rate detector for built-in test equipment.  3, fiche 5, Anglais, - azimuth%20gyroscope

Record number: 5, Textual support number: 2 CONT

The sensors for angular velocity are vibrating gyroscopes(3 axes, to detect rotation and pitch/roll pendulations of the payload). An error signal is obtained differencing the signal from the azimuth gyroscope and a constant level settable from the telemetry, which controls the speed of rotation. Such error signal drives an analog PID [Proportional Integral Differential] circuit; the output of the PID is connected to the PWM [Pulse Width Modulation] driver supplying current to the pivot azimuth motors.  3, fiche 5, Anglais, - azimuth%20gyroscope

Record number: 5, Textual support number: 3 CONT

azimuth gyro: term used at Natural Resources Canada - Earth Sciences Sector.  4, fiche 5, Anglais, - azimuth%20gyroscope

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Azimuth gyro drift rate.  5, fiche 5, Anglais, - azimuth%20gyroscope

Fiche 5,  Justifications,  Français

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La plate-forme stabilisée [...] Trois gyroscopes sont utilisés : (a) Un gyroscope d'azimut qui, n'ayant aucun degré de liberté dans l'axe vertical, détecte tout déplacement de la plate-forme en azimut. (b) Deux gyroscopes d'inclinaison [...]  3, fiche 5, Français, - gyroscope%20d%27azimut

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gyroscope d'azimut : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.  4, fiche 5, Français, - gyroscope%20d%27azimut

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Vitesse de dérive du gyroscope d'azimut.  5, fiche 5, Français, - gyroscope%20d%27azimut

Fiche 5,  Justifications,  Espagnol

Fiche 6,  Justifications,  Anglais

Record number: 6, Textual support number: 1 CONT

The DRS TA-1035(A)/U Digital Non-secure Voice Telephone (DNVT) with digital data port is a four-wire telephone set which transmits and receives conditioned diphase-modulated digital data, digitized voice and digital loop signaling at 16 or 32 kbps. Loop signaling consists of sequences of cyclically permuted 8-bit control words, each word having minimal correlation with any other word. Loop signaling conforms to Tri-Tac Standards.  1, fiche 6, Anglais, - digital%20non%2Dsecure%20voice%20telephone

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Once a call is established, the TA-1035(A)/U can alternate between voice and data modes. For voice communications, the DNVT uses continuously variable slope delta modulation encoding/decoding at 16 or 32 kbps. Extension network analog data interface is provided via the data port. For data communications, the TA-1035/U data adapter interfaces directly with standard Data Terminal Equipment(DE) such as the AN/UXC-7 tactical facsimile machine and AN/UGC-144 communications terminal. Data calls may be placed manually via keypad or automatically via extension dialing through the data port.  1, fiche 6, Anglais, - digital%20non%2Dsecure%20voice%20telephone

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Fiche 7,  Justifications,  Anglais

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In digital communications and radiotelegraphy, a type of modulation in which the phase angle of the carrier wave is shifted between two discrete values corresponding to digital ones and zeros representing the modulating signal.  5, fiche 7, Anglais, - phase%20shift%20keying

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PSK is similar to phase modulation, but the latter is analog in that the carrier phase angle varies continuously to follow the modulating signal' s instantaneous amplitude, instead of "jumping" between two set values.  5, fiche 7, Anglais, - phase%20shift%20keying

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phase shift keying; PSK: term and abbreviation standardized by ISO and CSA International.  6, fiche 7, Anglais, - phase%20shift%20keying

Fiche 7,  Justifications,  Français

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Transmission télégraphique (de données) par modulation de phase, dans laquelle chaque passage d'un état significatif à un autre est caractérisé, en régime établi, par une variation spécifiée de la phase d'une oscillation ou d'une onde périodique sinusoïdale.  1, fiche 7, Français, - transmission%20par%20d%C3%A9placement%20de%20phase

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transmission (télégraphique) (de données) par déplacement de phase : terme normalisé par l'AFNOR.  3, fiche 7, Français, - transmission%20par%20d%C3%A9placement%20de%20phase

Record number: 7, Textual support number: 2 OBS

modulation par déplacement de phase; transmission par déplacement de phase : termes normalisés par l'AFNOR, l'ISO et la CSA International.  4, fiche 7, Français, - transmission%20par%20d%C3%A9placement%20de%20phase

Fiche 7,  Justifications,  Espagnol

Record number: 7, Textual support number: 1 DEF

Método de modulación utilizado en transmisiones digitales, en el cual se modifica la fase de la señal portadora de forma discreta, repecto a una fase de referencia, en función de los datos que se van a transmitir.  1, fiche 7, Espagnol, - modulaci%C3%B3n%20por%20desplazamiento%20de%20fase

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Fiche 8,  Justifications,  Espagnol

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Modulación de una onda portadora mediante una señal analógica moduladora.  1, fiche 8, Espagnol, - modulaci%C3%B3n%20anal%C3%B3gica

Fiche 9,  Justifications,  Anglais

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In pulse code modulation, the act of selecting samples of an analog wave at recurring intervals such that the original wave can later be reconstructed with reasonable fidelity from the samples.  1, fiche 9, Anglais, - sampling

Record number: 9, Textual support number: 1 OBS

Time-division switching is an application of the principle of sampling. This permits a number of conversations to use the same transmission path and drastically reduces the need for a large number of transmission paths.  1, fiche 9, Anglais, - sampling

Fiche 9,  Justifications,  Français

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Technique qui consiste à prendre des échantillons d'information à des intervalles prédéfinis. Ces échantillons vont servir d'étalon pour l'analyse des informations en vue de leur codage/décodage.  1, fiche 9, Français, - %C3%A9chantillonnage

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Le rendement d'utilisation de la voie est alors d'autant plus élevé qu'on peut insérer, entre deux instants affectés à l'échantillonnage d'une communication donnée, un plus grand nombre d'échantillonnages d'autres communications, toutes distinctes les unes des autres.  1, fiche 9, Français, - %C3%A9chantillonnage

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Fiche 10,  Justifications,  Anglais

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A type of delta modulation in which the size of the steps of the approximates signal is progressively increased or decreased as required to make the approximated signal closely match the input analog wave.  3, fiche 10, Anglais, - continuous%20variable%20slope%20delta%20modulation

Record number: 10, Textual support number: 1 CONT

The most common form of digitized voice is known as continuous variable slope delta modulation, where the audio signal is converted to a 16 000-bit data stream.  4, fiche 10, Anglais, - continuous%20variable%20slope%20delta%20modulation

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Fiche 10,  Justifications,  Espagnol

Fiche 11,  Justifications,  Anglais

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A numeric modulation in which is encoded the amplitude difference between two successive samples of the analog signal to transmit, and not the absolute level of the samples as in pulse code modulation.(STWG)  1, fiche 11, Anglais, - delta%20modulation

Fiche 11,  Justifications,  Français

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Modulation numérique dans laquelle on code la différence d'amplitude entre deux échantillons successifs du signal analogique à transmettre, et non le niveau absolu des échantillons comme dans la modulation par impulsions codées. (GTTT)  1, fiche 11, Français, - modulation%20delta

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Terme(s) et définition uniformisés par le Groupe de travail de terminologie des Transmissions (GTTT).  1, fiche 11, Français, - modulation%20delta

Fiche 11,  Justifications,  Espagnol

Fiche 12,  Justifications,  Anglais

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CCITT classification of analog facsimile devices which operate at a speed of three minutes using AM modulation. A two-minute speed is also included in this class as a manufacturer's option.  1, fiche 12, Anglais, - Group%202

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Fiche 13,  Justifications,  Anglais

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CCITT classification of analog facsimile devices which operate at the speed of six minutes using FM modulation. A four-minute speed is also included in this category as a manufacturer's option.  1, fiche 13, Anglais, - Group%201

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