宽带干扰自适应旁瓣相消的方法研究  

A Study on Ways of Adaptive Sidelobe Cancellation of Wideband Interference

作　　者：王柔溪[1] 张建[2] 

机构地区：[1]北京工业大学,北京100022 [2]北京理工大学,北京100081

出　　处：《现代雷达》2012年第7期38-40,共3页Modern Radar

摘　　要：依据自适应旁瓣相消原理,着重分析了宽带干扰信号对旁瓣相消性能的影响,针对宽带干扰影响下,主辅天线间的波程差、主辅天线通道频率特性的不一致性以及主天线旁瓣的频率敏感特性等引起的自适应旁瓣相消系统的主辅天线2通道信号的去相关作用,采用了主天线通道均衡和子带自适应相消2种方法改善带宽特性,并通过MATLAB仿真验证,仿真结果表明该两种方法均可明显改善系统的相消性能,达到良好效果。This paper presents the influence of the wideband interference to sidelobe cancellation performance based on the princi- ple of adaptive sidelobe cancellation, for broadband interference, the delay between main and auxiliary antenna, the frequency sen- sitivity of the antenna sidelobe and the different between main and auxiliary channel makes the performance of adaptive sidelobe cancellation become deterioration, the main antenna sidelobe equilibrium and subband adaptive cancelling are used to improve the bandwidth characteristics, through the simulate of MATLAB, both the two ways can achieve good results.

关 键 词：自适应旁瓣相消 宽带干扰 均衡 子带 

分 类 号：TN972[电子电信—信号与信息处理]