基于多周期积累的机械扫描被动测向方法研究  

A mechanically scanned passive direction-finding method based on multi-period accumulation

作　　者：吕钢[1] 赵鑫[1] 郭琳琳[1] 

机构地区：[1]中国船舶重工集团公司第二二四研究所,南京211153

出　　处：《雷达与对抗》2014年第4期42-45,58,共5页Radar & ECM

摘　　要：基于多周期积累的算法思想主要包含多周期幅度加权法和α-β延迟滤波两个相互承应的部分,前者通过对N个历史周期截获辐射源包络的最大幅度的积累,提高了处理得益;后者一方面对前者的延迟缺陷作了补偿,另一方面完成了前者的单次测向结果作平滑滤波。同时给出了多周期幅度加权法导致的延迟周期数与历史截获情况的关系,最后通过试验分析验证了该机械扫描被动测向方法。The idea of the multi-period accumulation algorithm mainly includes the multi-period amplitude weighting and the α-β delay filtering. The former improves the processing benefit through the accumulation of the maximum amplitudes of the captured radiant point envelopes in N historical periods,and the latter not only compensates the former＇s limitation of delay but also completes the smoothing filtering of the single direction-finding result of the former. At the same time,the relationship between the delayed periods caused by the multi-period amplitude weighting and the historical interception is given. Finally,the mechanically scanned passive direction-finding method is verified through the test analysis.

关 键 词：雷达 测向 多周期积累 幅度加权 延迟滤波 

分 类 号：TN957.52[电子电信—信号与信息处理]