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SENSITIVITY TIME CONTROL [3 records]
Record 1 - internal organization data 2017-02-13
Record 1, English
Record 1, Subject field(s)
- Radar, Radio Guidance and Goniometry
- Air Navigation Aids
Record 1, Main entry term, English
- sensitivity time control
1, record 1, English, sensitivity%20time%20control
correct, NATO, standardized
Record 1, Abbreviations, English
- STC 2, record 1, English, STC
correct
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A programmed variation of the gain (sensitivity) of a radar receiver as a function of time within each pulse repetition interval or observation time to prevent overloading of the receiver by strong echos from targets or clutter at close range. [Definition standardized by the Institute of Electrical and Electronics Engineers (IEEE).] 3, record 1, English, - sensitivity%20time%20control
Record number: 1, Textual support number: 1 OBS
sensitivity time control: term standardized by the Institute of Electrical and Electronics Engineers (IEEE). 4, record 1, English, - sensitivity%20time%20control
Record 1, French
Record 1, Domaine(s)
- Radar, radioguidage et radiogoniométrie
- Aides à la navigation aérienne
Record 1, Main entry term, French
- gain variable dans le temps
1, record 1, French, gain%20variable%20dans%20le%20temps
correct, masculine noun, NATO
Record 1, Abbreviations, French
- GVT 2, record 1, French, GVT
correct, masculine noun, NATO
- G.V.T. 3, record 1, French, G%2EV%2ET%2E
correct, masculine noun
Record 1, Synonyms, French
- gain variable en fonction du temps 4, record 1, French, gain%20variable%20en%20fonction%20du%20temps
correct, masculine noun
- STC 4, record 1, French, STC
masculine noun
- STC 4, record 1, French, STC
- gain temporisé 4, record 1, French, gain%20temporis%C3%A9
correct, masculine noun
- régulation de la sensibilité en fonction du temps 5, record 1, French, r%C3%A9gulation%20de%20la%20sensibilit%C3%A9%20en%20fonction%20du%20temps
correct, feminine noun, NATO
- GOVT 5, record 1, French, GOVT
correct, feminine noun, NATO
- GOVT 5, record 1, French, GOVT
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Traitement du signal. Linéarité : contrôle de la dynamique des récepteurs par paramétrage des gains. Mise en œuvre de lois d'atténuation dites GVT (gain variable dans le temps) qui évite la saturation en zone proche. Cette mesure est efficace sur les échos de sol mais, étant appliquée sans distinction d'angle de site (il n'existe pas de discrimination dans le plan vertical), elle est défavorable aux cibles utiles proches. Efficacité limitée en cas d'échos fixes forts, qui se trouveraient hors de la dynamique maximale autorisée par les plus fortes valeurs d'atténuation. 6, record 1, French, - gain%20variable%20dans%20le%20temps
Record number: 1, Textual support number: 1 OBS
Pour éviter les risques de saturation du récepteur, programmation du gain de celui-ci en fonction du temps. Ainsi, le gain est faible pour les cibles proches et élevé pour les cibles éloignées. 7, record 1, French, - gain%20variable%20dans%20le%20temps
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Guía radárica, radioguía y radiogoniometría
- Ayuda para la navegación aérea
Record 1, Main entry term, Spanish
- control del tiempo de sensibilidad
1, record 1, Spanish, control%20del%20tiempo%20de%20sensibilidad
masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2010-03-24
Record 2, English
Record 2, Subject field(s)
- Radar, Radio Guidance and Goniometry
- Air Navigation Aids
Record 2, Main entry term, English
- sensitivity time control
1, record 2, English, sensitivity%20time%20control
correct
Record 2, Abbreviations, English
- STC 1, record 2, English, STC
correct
Record 2, Synonyms, English
Record 2, Textual support, English
Record 2, French
Record 2, Domaine(s)
- Radar, radioguidage et radiogoniométrie
- Aides à la navigation aérienne
Record 2, Main entry term, French
- régulateur de sensibilité temporisé
1, record 2, French, r%C3%A9gulateur%20de%20sensibilit%C3%A9%20temporis%C3%A9
correct, masculine noun, standardized
Record 2, Abbreviations, French
Record 2, Synonyms, French
- système de gain variable en fonction du temps 2, record 2, French, syst%C3%A8me%20de%20gain%20variable%20en%20fonction%20du%20temps
correct, masculine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Dispositif qui permet de réduire automatiquement les échos étrangers proches en diminuant la sensibilité du récepteur au moment de l'émission du top et en la rétablissant ensuite progressivement. [Définition normalisée par l'AFNOR et reproduite avec son autorisation.] 1, record 2, French, - r%C3%A9gulateur%20de%20sensibilit%C3%A9%20temporis%C3%A9
Record number: 2, Textual support number: 1 OBS
Pour éviter les risques de saturation du récepteur, [le] gain [est programmé] en fonction du temps. Ainsi, le gain est faible pour les cibles proches et élevé pour les cibles éloignées. 3, record 2, French, - r%C3%A9gulateur%20de%20sensibilit%C3%A9%20temporis%C3%A9
Record number: 2, Textual support number: 2 OBS
régulateur de sensibilité temporisé : terme normalisé par l'AFNOR. 4, record 2, French, - r%C3%A9gulateur%20de%20sensibilit%C3%A9%20temporis%C3%A9
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Guía radárica, radioguía y radiogoniometría
- Ayuda para la navegación aérea
Record 2, Main entry term, Spanish
- control del tiempo de sensibilidad
1, record 2, Spanish, control%20del%20tiempo%20de%20sensibilidad
masculine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2009-01-14
Record 3, English
Record 3, Subject field(s)
- Sea Operations (Military)
- Radar, Radio Guidance and Goniometry
Record 3, Main entry term, English
- anti-clutter sea control
1, record 3, English, anti%2Dclutter%20sea%20control
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
- A/C sea control 1, record 3, English, A%2FC%20sea%20control
correct
- ACS control 2, record 3, English, ACS%20control
correct
- sensitivity time control 1, record 3, English, sensitivity%20time%20control
correct
- STC 3, record 3, English, STC
correct
- STC 3, record 3, English, STC
- sea anti-clutter 4, record 3, English, sea%20anti%2Dclutter
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
The anti-clutter sea control is often referred to as STC (Sensitivity Time Control) which decreases the amplification of the receiver immediately after a radar pulse is transmitted, and progressively increases the sensitivity as the range increases. A common mistake is to over adjust the A/C SEA control so that the surface clutter is completely removed. By rotating the control fully clockwise, you see how dangerous this can be; a dark zone is created near the center of the screen and close-in targets can be lost. This dark zone is even more dangerous if the gain has not been properly adjusted. Always leave a little surface clutter visible on the screen. If no surface clutter is observed (on very calm water), set the control at the fully counterclockwise position. 3, record 3, English, - anti%2Dclutter%20sea%20control
Record number: 3, Textual support number: 1 OBS
Turn clockwise to increase sea anti-clutter (STC, Sensitivity Time Control) effect, and counter-clockwise to decrease sea anti-clutter effect. 5, record 3, English, - anti%2Dclutter%20sea%20control
Record 3, Key term(s)
- anticlutter sea control
- anti clutter sea control
- sea anticlutter
- sea anti clutter
Record 3, French
Record 3, Domaine(s)
- Opérations en mer (Militaire)
- Radar, radioguidage et radiogoniométrie
Record 3, Main entry term, French
- anti-retour de mer
1, record 3, French, anti%2Dretour%20de%20mer
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
On peut avoir recours à l'anti-retour de pluie et à l'anti-retour de mer pour éliminer les faux échos. Il faut cependant être prudent en les utilisant, car on risque de masquer d'autres cibles proches si on place les commandes de ces dispositifs à un niveau trop élevé. 2, record 3, French, - anti%2Dretour%20de%20mer
Record number: 3, Textual support number: 1 OBS
L'anti-retour de mer [sert] à régler le gain à courte distance. 3, record 3, French, - anti%2Dretour%20de%20mer
Record number: 3, Textual support number: 2 OBS
anti-retour de mer : terme uniformisé par le Comité de normalisation de la terminologie navale. 4, record 3, French, - anti%2Dretour%20de%20mer
Record 3, Key term(s)
- anti retour de mer
- antiretour de mer
Record 3, Spanish
Record 3, Textual support, Spanish
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