Glossary entry (derived from question below)
English term or phrase:
antenna dwells
Portuguese translation:
períodos de detecção pela antena
Added to glossary by
A. Carolina Melo
Oct 1, 2010 18:26
13 yrs ago
English term
Portugal
Your Portuguese translator
Native in: Portuguese 
Works in: German to Portuguese, English to Portuguese, Spanish to Portuguese
antenna dwells
English to Portuguese
Tech/Engineering
Military / Defense
Surveillance
"In classical scan to scan processor found on many coastal radar, signal processing of multiple antenna scans is simply done by integrating the content of range/Azimuth gates from several antenna rotations. Such a processing provides detection gain only for very low speed target whereas target needs to stay in the same cell for several antenna dwells. It is obviously not well adapted for very small cells of high-resolution radar or for fast moving targets."
Proposed translations
(Portuguese)
| 4 | períodos de detecção pela antena |
Salvador Scofano and Gry Midttun
|
| 5 +1 | posições ou locais (de instalação) de antenas |
Flavio Steffen
|
| 4 | tempos de atividade/"iluminação" |
Clauwolf
|
Proposed translations
14 hrs
Salvador Scofano and Gry Midttun
Norway
Norway
Native in Portuguese
Works in field
Norway
Salvador Scofano and Gry Midttun
Engineer:Oil&Gas/Electron/Finan/Law/HSEQ
Native in: Norwegian , Portuguese
Works in: English to Portuguese, Norwegian to Portuguese, Portuguese to Norwegian, and 19 more.
Related KudoZ points
:
129
Selected
períodos de detecção pela antena
Dwell time - tempo requerido para o detector registar os alvos
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Note added at 14 hrs (2010-10-02 09:25:47 GMT)
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Também usam os termos: tempo de duração, tempo de residência
http://www.selper.org/2007/diccionario08/Terminología en Sen...
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Note added at 14 hrs (2010-10-02 09:25:47 GMT)
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Também usam os termos: tempo de duração, tempo de residência
http://www.selper.org/2007/diccionario08/Terminología en Sen...
4 KudoZ points awarded for this answer.
Comment: "Obrigada a todos!"
+1
1 hr
Flavio Steffen
Brazil
Brazil
Native in Portuguese
Brazil
The experience makes the difference
Native in: Portuguese
Works in: English to Portuguese, Spanish to Portuguese, Portuguese to English
Related KudoZ points
:
8
posições ou locais (de instalação) de antenas
Trata-se de uma rede de antenas de radar; dwell refere-se ao local/posição em que a antena está fisicamente instalada.
Essas posições são escolhidas para permitir que o objeto em movimento seja rastreado por mais do que uma antena de radar de maneira simultânea.
Essas posições são escolhidas para permitir que o objeto em movimento seja rastreado por mais do que uma antena de radar de maneira simultânea.
2 hrs
tempos de atividade/"iluminação"
:) Não tem nada a ver com locais
The resolution available from Doppler beam sharpening is limited by the antenna dwell time--the length of time for which the patch of terrain being observed is illuminated by the radar beam. If the antenna is set to scan that sector very slowly, or even to stop, flooding the target area with radar energy, the resulting radar returns can be integrated over a second or more. This provides an effective beamwidth of 0.5 degrees of better. This is similar to the beamwidth available from a sideways-looking Sar, so gives a much higher resolution, for example 0.5[degrees] or better.
The resolution available from Doppler beam sharpening is limited by the antenna dwell time--the length of time for which the patch of terrain being observed is illuminated by the radar beam. If the antenna is set to scan that sector very slowly, or even to stop, flooding the target area with radar energy, the resulting radar returns can be integrated over a second or more. This provides an effective beamwidth of 0.5 degrees of better. This is similar to the beamwidth available from a sideways-looking Sar, so gives a much higher resolution, for example 0.5[degrees] or better.
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