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Interference suppressor for an electronically or mechanically scanning monopulse radar generating sum and difference signals from received microwave energy
Interference suppressor for an electronically or mechanically scanning monopulse radar generating sum and difference signals from received microwave energy
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机译:用于电子或机械扫描单脉冲雷达的干扰抑制器,可从接收到的微波能量中产生和信号和差信号
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摘要
An electronically or mechanically scanning monopulse radar has an antenna feeding incident microwave energy contaminated by jamming signal to a processor which has a sum channel and one or two difference channels generating a raw sum signal &Sgr; along with a raw azimuthal difference signal &Dgr;.sub.&thgr; and/or a raw elevational difference signal . DELTA..sub.&phgr;. Each channel includes an algebraic adder subtracting from its own raw output signal a contamination signal representing estimated disturbance which is derived with the aid of an adaptive cancellation loop from the raw output signal or signals of the other channel or channels, thereby producing a purged sum signal &Sgr;' as well as one or two purged difference signals &Dgr;'.sub.&thgr;, &Dgr; '.sub.&phgr;. The purged output signal of each channel is fed back to the corresponding cancellation loop for correlation with the raw output signal or signals from the other channel or channels.
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