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ACTIVE TRANSPONDER, PARTICULARLY FOR SYNTHETIC APERTURE RADAR, OR SAR, SYSTEMS
ACTIVE TRANSPONDER, PARTICULARLY FOR SYNTHETIC APERTURE RADAR, OR SAR, SYSTEMS
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机译:有源应答器,特别是用于合成孔径雷达或SAR系统
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摘要
The invention concerns an active transponder, particularly for synthetic aperture radar systems, or SAR1 comprising: a receiving antenna (20) for receiving a first radiofrequency signal modulated according to a first train of one or more first pulses; separating means (3), comprising two outputs at each one of which it outputs the first radiofrequency signal; second processing means (7, 8, 9, 10, 11, 12), connected to a first output of the separating means (3), capable to generate at least one code synchronised with the first pulses; signal generating means (4), connected to a second output of the separating means (3) and to the second processing means (7, 8, 9, 10, 11, 12), capable to generate a second radiofrequency signal modulated by said at least one code generated by the second processing means (7, 8, 9, 10, 11, 12); and a transmitting antenna means (30), capable to transmit the second radiofrequency signal; characterised in that the second processing means (7, 8, 9, 10, 11, 12) is capable to generate, for each one of the first pulses, a sequence of one or more second pulses, said at least one code being synchronised with the second pulses.
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