基于空间谱估计的多目标信号分离研究

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。

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

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＂.