S模式雷达信号稀疏性分析

Sparse analysis of S-mode radar signals

文章从信号稀疏特性的角度研究了重叠信号的分离问题,并对S模式信号进行稀疏性分析,将单通道问题扩展为多通道问题,对接收信号即一维S模式雷达信号进行重构,变换后的二维信号矩阵大小由重塑因子决定,并分析了不同重塑因子下的重构矩阵的奇异值分布的稀疏性,结合不同采样频率进行比较。

This paper studies the separation of overlapping signals from the perspective of signal sparsity.The method to analyze the sparsity of the S mode signal is to expand the single-channel problem to the multi-channel problem,and reconstruct the received signal,that is,the one-dimensional S mode radar signal.The size of the transformed two-dimensional signal matrix is determined by the remodeling factor.The sparsity of the singular value distribution of the reconstruction matrix under different remodeling factors is analyzed and compared with different sampling frequencies.