摘要
多站电子侦察系统中,脉冲信号到达两个接收站的时间差信息可以用于信号分选。针对高重频辐射源引起的虚假聚类和超低重频辐射源累积脉冲数少给时差分选带来的困难,提出一种基于递归扩展直方图的时差分选方法。该方法将时差数据转换成扩展直方图的结构,采用递归的方式序贯地对每个辐射源进行检测和分选,通过扩展运算,同步消除虚假聚类,逐步降低直方图噪声水平,提高了分选正确率。仿真结果表明了该方法的有效性。
In multiple platform electronic reconnaissance system,time difference of arrival（TDOA） can be used for pulse sorting.A method for TDOA sorting based on recursive extended histogram is proposed to deal with both the problem of misleading TDOA clusters caused by high pulse repetitive frequency（PRF） emitters and the problem of less pulse accumulation caused by ultra-low PRF emitters.TDOA data were formed into an extended histogram structure,which is processed recursively to detect and sort out the pulses of each emitter.By defining the extension operator,the misleading TDOA clusters could be removed,and the histogram noise level decreased step by step as well,so the method improved the performance of TDOA sorting effectively.Simulation results show that the method is applicable and effective.
出处
《国防科技大学学报》
EI
CAS
CSCD
北大核心
2012年第5期83-89,共7页
Journal of National University of Defense Technology
基金
国家部委资助项目
关键词
时差
信号分选
直方图
电子战
TDOA
pulse sorting
histogram
electronic warfare
