基于空间谱估计的多目标信号分离研究  

Research of Multi-target Signals Separation Based on Spatial Spectrum Estimation

作　　者：沙晶晶[1] 施浒立[2] 

机构地区：[1]江苏信息职业技术学院,江苏无锡214153 [2]中国科学院国家天文台,北京100012

出　　处：《现代电子技术》2010年第23期85-87,91,共4页Modern Electronics Technique

摘　　要：现代战争中,同一时间、同一空间、相同频率或不同频率上出现多个信号源的现象经常会出现,为了对这样的多目标信号进行有效分离,提出了空间谱估计测向的方法。在分析该方法基本原理的基础上,提出了适用于同频与不同频信号分离的通用测向算法,并对算法进行了仿真。仿真结果证明了该测向算法的有效性,从而为目标识别器的研制提供了一种有价值的方案。Multiple signals with the same or different frequency often occur at the same time and space in modern warfares. A method of direction finding of spacial spectrum is proposed to separate the multi-tareget signals efficiently. Based on the analysis of the basic principle of the method, a universal algorithm which can separate signals with both the same and different frequencies is presented. The simulation results show that the algorithm is efficient. It provides a valuable method for the development of ＂target recognition machine＂.

关 键 词：多目标信号 空间谱估计 MUSIC算法 信号分离 

分 类 号：TN914-34[电子电信—通信与信息系统]