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LINEAR FREQUENCY MODULATION [1 record]
Record 1 - internal organization data 2007-01-31
Record 1, English
Record 1, Subject field(s)
- Radar, Radio Guidance and Goniometry
- Remote Sensing
- Sonar and Underwater Detection (Military)
Record 1, Main entry term, English
- linear frequency modulation
1, record 1, English, linear%20frequency%20modulation
correct, officially approved
Record 1, Abbreviations, English
Record 1, Synonyms, English
- linear fm 2, record 1, English, linear%20fm
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A phase coded pulse modulation of the carrier frequency. 2, record 1, English, - linear%20frequency%20modulation
Record number: 1, Textual support number: 1 CONT
[A chirp is a] typical phase coding or modulation applied to the range pulse of an imaging radar designed to achieve a large time-bandwidth product. The resulting phase is quadratic in time, which has a linear derivative. Such coding is often called linear frequency modulation, or linear fm. 2, record 1, English, - linear%20frequency%20modulation
Record number: 1, Textual support number: 1 OBS
linear frequency modulation: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG). 3, record 1, English, - linear%20frequency%20modulation
Record 1, French
Record 1, Domaine(s)
- Radar, radioguidage et radiogoniométrie
- Télédétection
- Sonar et détection sous-marine (Militaire)
Record 1, Main entry term, French
- modulation linéaire en fréquence
1, record 1, French, modulation%20lin%C3%A9aire%20en%20fr%C3%A9quence
correct, feminine noun, officially approved
Record 1, Abbreviations, French
Record 1, Synonyms, French
- fréquence modulée linéairement 2, record 1, French, fr%C3%A9quence%20modul%C3%A9e%20lin%C3%A9airement
correct, feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
La modulation introduite sur le signal émis revêt deux fonctions distinctes visant à une meilleure interprétation du signal reçu. L'introduction d'un codage peut permettre de distinguer le signal acquis du bruit de fond ou d'émissions parasites (systèmes de brouillage). Une modulation linéaire en fréquence crée une sorte de variation Doppler artificielle, qui permet d'accroître la résolution en distance, grâce à un traitement approprié. 3, record 1, French, - modulation%20lin%C3%A9aire%20en%20fr%C3%A9quence
Record number: 1, Textual support number: 1 OBS
modulation linéaire en fréquence : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR). 4, record 1, French, - modulation%20lin%C3%A9aire%20en%20fr%C3%A9quence
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Guía radárica, radioguía y radiogoniometría
- Teledetección
- Dispositivo sonar y detección submarina (Militar)
Record 1, Main entry term, Spanish
- modulación de frecuencia lineal
1, record 1, Spanish, modulaci%C3%B3n%20de%20frecuencia%20lineal
correct, feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
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