在处理数据时经常需要处理稀疏矩阵，本文件包含了部分处理稀疏矩阵对角化、行列重拍等Matlab函数。-In the processing of data often need to deal with sparse matrices, this document contains some sparse matrix diagonalization, ranks remake Matlab functions.

稀疏频率波形设计，权衡波形自相关函数的ISL和PSL(Sparse Frequency Waveform Design)