对信号进行小波变换，抑制系数小波滤波，采用了硬阈值滤波方法-right signal wavelet transform, wavelet filter coefficients inhibit use of the hard threshold filtering method

程序生成正弦信号和三角波信号，对叠加信号进行一维小波变换（6层），重构6层逼近系数，并显示。-Program generates sine wave and triangular wave signals, superposition of signals of one-dimensional wavelet transform (6 layer), reconstruct 6 layer approximation coefficient, and displayed.