近程强杂波限幅处理对旁瓣相消性能的影响

Effect of Short-range Strong Clutter Constraint on Sidelobe Canceller

分析了雷达同时受到有源干扰和无源干扰的情况下其抗干扰性能下降的原因。通过数学推导以及仿真实验对各种因素进行分析,结果表明:引起雷达抗干扰性能变差的原因是由于限幅对旁瓣相消性能的影响。

This paper is concerned with the reason why the performance degradation of the jamming suppression, when there simultaneously exist the active and passive jammings. The rigorous mathematical model is estab- lished, and the reason is also exploited from the theoretical viewpoint, which is verified by the simulated data. The results highlight that the reason of degradation of the jamming suppression in the presence of both active and passive jammings is the degradation of the sidelobe cancelling, which, in turn, is introduced by the operation of the amplitude constraint.