中文说明：用MATLAB实现的压缩传感，包括压缩比、运行时间和计算复原图像的峰值信噪比,有借鉴意义哦，本程序的性能已经超过其他算法，包括调制，解调，信噪比计算，用平面波展开法计算二维声子晶体带隙。
English Description：
Using MATLAB to achieve the compressed sensing, including compression ratio, operation time and recovery calculation image peak signal-to-noise ratio, reference Oh, the performance of the program has more than other algorithms, including modulation, demodulation, signal to noise ratio is calculated, using the plane wave expansion method in two-dimensional phononic crystal band gap was calculated.