Radar transponder
First Claim
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1. A radar transponder comprising:
- a trigger signal output unit for outputting a trigger signal in response to a predetermined trigger generating condition; and
a transmitter for continually generating plural sweep signals in response to the output of the trigger signal from said trigger signal output unit until a stop condition based on an external factor is satisfied, and transmitting a response electric wave corresponding to the sweep signals.
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Abstract
Upon receiving a radar electric wave from a search radar, a radar transponder according to the present invention generates a trigger signal in response to the reception of the radar electric wave. In response to only the trigger signal, the radar transponder starts to generate sweep signals, and continues to generate sweep signals until a stop condition based on an external factor such as stop of power supply or the like is satisfied. Accordingly, the response electric wave can be received with a high probability in the search radar.
9 Citations
14 Claims
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1. A radar transponder comprising:
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a trigger signal output unit for outputting a trigger signal in response to a predetermined trigger generating condition; and
a transmitter for continually generating plural sweep signals in response to the output of the trigger signal from said trigger signal output unit until a stop condition based on an external factor is satisfied, and transmitting a response electric wave corresponding to the sweep signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A radar transponder comprising:
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an antenna configured to receive a search radar signal transmitted from a search radar;
a sweep signal generator; and
a trigger signal output unit electrically connected to said antenna and also electrically connected to the sweep signal generator, the trigger signal output unit being configured to output a trigger signal in response to reception of the search radar signal;
wherein the sweep signal generator continuously and repetitively generates sweep signals until a stop condition based on an external factor is satisfied. - View Dependent Claims (11, 12, 13, 14)
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Specification