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通过对压缩感知和压缩域信号处理技术的研究,提出了一种基于斜投影算子的压缩域滤波法,在不精确已知目标信号稀疏位置的情况下,利用测量矩阵信息,构造斜投影滤波算子来完成干扰信号的滤除功能,从而达到直接利用压缩测量值不经信号重构而进行滤波的目的.理论分析了该方法的有效性.实验仿真结果表明,该方法能在压缩域有效地滤除非目标信号,并且相比于正交投影算子滤波法具有更好的性能.
A compression domain filtering algorithm based on oblique projection operator is proposed in this paper, which is based on compressed sensing and compressed domain signal processing. Using the measurement matrix information to construct oblique projection filter Operator to complete the interference signal filtering function, so as to achieve the direct use of compressed measurements without signal reconstruction and filtering purposes.Theoretical analysis of the effectiveness of the method.Experimental simulation results show that the method can be effective in the compression domain Filter out non-target signals and have better performance than orthogonal projection operator filtering.