中文说明：四种重构算法应用到块结构信号，包括MBCS-LBP,CoSaMP,BCS和BPDN的信号重构过程，测量矩阵是利用LDPC码构造的。
English Description：
Four reconstruction algorithms are applied to the reconstruction of block structured signals, including mbcs-lbp, CoSaMP, BCS and bpdn. The measurement matrix is constructed by LDPC code.