基于数乘移位寄存器随机滤波的压缩感知

Computer Engineering and Design(2013)

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Abstract
针对随机滤波产生的测量矩阵中行向量间相关性大,重构效果不理想的问题,提出了一种数乘移位寄存器随机滤波问方法。利用数乘移位寄存器反馈线上存有固定值的乘法器,改变了测量矩阵单调循环的结构,减小了行向量之间相关性。分析了数乘移位寄存器随机滤波在一维稀疏信号、二维图像中的重构效果。仿真结果表明,数乘移位寄存器随机滤波具有良好的重构效果,且优于传统随机滤波和部分Hadamard矩阵、Gaussian矩阵。
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Key words
circulate matrix,compressed sensing,random filter,measurement matrix,correlation coefficient
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