公开(公告)号：US08879672B2

公开(公告)日：2014-11-04

申请号：US13777121

申请日：2013-02-26

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hoi Yoon Jung ,  Sun Min Lim ,  Jae Hyun Park ,  Byung Jang Jeong

IPC: H04L27/06 ,  H03M7/46

CPC classification number: H03M7/46 ,  H03M7/3062

Abstract: Disclosed are a signal compression apparatus and method for dynamic compressive sensing, including: a signal input unit configured to simultaneously output an input signal, and generate and output a linear measurement reference signal based on the input signal; a linear transform unit configured to receive the linear measurement reference signal and variably generate a linear measurement matrix value according to the linear measurement reference signal; a signal compressor configured to output a compressed signal for the input signal based on the generated linear measurement matrix value; and a signal processor configured to reconstruct the compressed signal and perform spectrum sensing of the input signal. Accordingly, it is possible to increase signal compression efficiency of compressive sensing and improve signal reconstruction performance by using sparsity information of the input signal, and also by performing signal compression by using a compression matrix suitable for the sparsity information of the input signal.

Abstract translation: 公开了一种用于动态压缩感测的信号压缩装置和方法，包括：信号输入单元，被配置为同时输出输入信号，并且基于输入信号生成并输出线性测量参考信号; 线性变换单元，被配置为接收线性测量参考信号，并根据线性测量参考信号可变地生成线性测量矩阵值; 信号压缩器，被配置为基于所生成的线性测量矩阵值输出用于输入信号的压缩信号; 以及信号处理器，被配置为重构所述压缩信号并执行所述输入信号的频谱感测。 因此，可以通过使用输入信号的稀疏信息来提高压缩感测的信号压缩效率并且通过使用适合于输入信号的稀疏信息的压缩矩阵来执行信号压缩来提高压缩感测的信号压缩效率。