压缩感知是新兴起来的一门重要学科，这里提供香港大学沙威最经典简单的一个框架。由小波先进行稀疏化，再用OMP算法进行修复重构。-Compressed sensing is a new up an important subject, here are the simplest classic Savit a framework. First carried out by the wavelet-based sparse, and then repair the OMP algorithm reco