一种空间谱解两相干信号测向参数融合技术  

A Fusion Technique of Direction Finding Parameters for Two Coherent Signals in Spatial Spectral Solution

作　　者：沈相相 周静 陈强 SHEN Xiang-xiang;ZHOU Jing;CHEN Qiang(The 8th Research Academy of CSSC,Yangzhou 225101,China)

机构地区：[1]中国船舶集团有限公司第八研究院,江苏扬州225101

出　　处：《舰船电子对抗》2022年第5期55-59,共5页Shipboard Electronic Countermeasure

摘　　要：多信号分类(MUSIC)算法具有超分辨的测向性能。针对非均匀线阵解两相干信号条件下该算法带来的盲区问题,提出了一种改进算法。通过对相邻阵面间的测向结果进行融合解算,提高了角度正确估计的概率,同时给出了所测角度的可信度,方便了后续的信号处理,通过仿真验证了该算法的有效性。The multiple signal classification(MUSIC)algorithm has super-resolution direction finding performance.Aiming at the blind area problem caused by the algorithm while using nonuniform linear array to resolve two coherent signals,an improved algorithm is proposed.By fusing the direction finding results between adjacent arrays,the probability of correct angle estimation is improved.At the same time,the reliability of the measured angle is given,which facilitates the subsequent signal processing.The effectiveness of the improved algorithm is verified through simulation.

关 键 词：多信号分类 非均匀线阵 相干信号 盲区 可信度 

分 类 号：TN971.1[电子电信—信号与信息处理]