河北工业科技2018，Vol.35Issue(4)：237-241,5.DOI:10.7535/hbgykj.2018yx04002
一种改进的宽带相干信号测向算法
An improved direction finding algorithm of wideband coherent source
摘要
Abstract
In order to solve problem that the broadband independent signal and the coherent signal coexist,it makes the signal more difficult to estimate and the direction finding algorithm being more complex,a new wideband coherent signal direction finding algorithm is proposed.Firstly,the unknown signals are separated,and the independent signal direction is estimated using classical multiple signal classification algorithm.Secondly,based on the obtained information of the independent signal, the independent signal is separated from the unknown signal,and only the coherent signal retains.Finally,the coherent signal is estimated with the improved direction finding algorithm of wideband coherent signal.A simulation platform is constructed by using Matlab to simulate the algorithm.The resuts show that the decorrelation calculation of the algorithm is simple,and can effectively solve the problem that independent and coherent wideband sources coexist.The algorithm can improve the success rate of coherent signal estimation and reduce the root mean square error of direction finding.The research result provides valua-ble reference for wideband direction finding.关键词
信号检测/均匀线阵/测向/聚焦算法/Matlab仿真/宽带测向/解相干Key words
signal detection/uniform linear array/direction finding/focusing algorithm/Matlab simulation/wideband direction finding/decoherence分类
信息技术与安全科学引用本文复制引用
陈国通,王小娜..一种改进的宽带相干信号测向算法[J].河北工业科技,2018,35(4):237-241,5.基金项目
河北省科技支撑计划项目(18210803D) （18210803D）
