方波信号削噪，用sym8小波进行三层分解并用heursure软阈值进行小波系数阈值化-Cut a square wave signal noise, three with sym8 wavelet decomposition and use heursure soft threshold wavelet coefficients thresholding

计算10阶频域传输函数极点及系数来近似双正交coiflet小波尺度函数波形-Computing 10 poles of frequency domain transfer function and coefficient to approximate biorthogonal coiflet wavelet scale function waveform

讲小波包中尺度函数系数的计算，对于小波滤波器的设计比较实用-Mesoscale speak wavelet packet coefficients calculations, more practical