旁瓣对消是抗有源积极干扰的一种重要方式。文中介绍开环旁瓣对消的原理,分析了2个辅助天线系统的对消性能。针对带宽对对消性能的影响问题,提出对辅助通道信号采用延迟的方法来提高宽带系统的对消性能。仿真结果表明,只要延迟时间选择合理,这种方法是行之有效的。

Sidelobe cancellation is an effective measure against active jamming.The principle of open loop sidelobe can- celling is introduced,and the performance of two auxiliary antenna cancellation system is analyzed.To improve the cancellation performance of wideband system,a delay method is proposed and simulated.The result shows that this method is feasible if delay- time is reasonable.

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