相干信源DOA估计的最大似然算法应用及改进  

Application and improvement of maximum likelihood algorithm for DOA estimation of coherent signals

作　　者：陈佳 Chen Jia(China State Shipbuilding Corporation 723 Institute,Yangzhou 225000,China)

机构地区：[1]中国船舶集团有限公司第七二三研究所,江苏扬州225000

出　　处：《电子技术应用》2022年第9期145-148,152,共5页Application of Electronic Technique

摘　　要：讨论了阵列天线基于交替投影迭代算法的最大似然估计,实现信号源方位估计以及多个同距同速信源的方位角分离方法。此估计方法可用于相关信号目标的方位估计。由于此方法耗时较长,与斐波那契数列法结合,减少了搜索次数,提高了测角效率。仿真结果表明了此方法的有效性。In this paper,we discuss the maximum likelihood of the array antenna based on the alternating projection iterative algorithm,the realization of direction of arrival estimation of the signal source and the method of direction of arrival separation of multiple sources with the same distance and same speed.This method can be used to estimate the bearing of the target with correlated signals.Because this method takes a long time and is combined with the Fibonacci method,the search times are reduced and the efficiency of angle measurement is improved.Simulation results show the effectiveness of the proposed method.

关 键 词：最大似然估计 DOA估计 交替投影迭代算法 斐波那契数列法 

分 类 号：TN95[电子电信—信号与信息处理]