中文说明：压缩感知处理信号数据，首先使用k-svd算法学习得到稀疏基，即字典。根据所学的稀疏基，利用omp算法得到信号的稀疏表示，随机高斯矩阵作为感知矩阵。
English Description：
Firstly, the K-SVD algorithm is used to learn the sparse basis, that is, the dictionary. According to the sparse basis, the sparse representation of the signal is obtained by OMP algorithm, and the random Gaussian matrix is used as the sensing matrix.