小波降噪程序：基于模极大值法，可以直接使用。包含有：P_gama.m、P_y.m、Py_Pgama.m、wavedenoisemod3_a.m，主程序为wavedenoisemod3_a.m。-Wavelet denoising procedures: Based on the modulus maxima method can be used directly. Contains: P_gama.m, P_y.m, Py_Pgama.m, wavedenoisemod3_a.m, the main program for wavedenoisemod3_a.m.