中文说明： FIR 底通和带通滤波器和IIR 底通和带通滤波器，经典的灰度共生矩阵纹理计算方法，有小波分析的盲信号处理，进行逐步线性回归，验证可用，二维声子晶体FDTD方法计算禁带宽度的例子。
English Description：
End of FIR-pass and band-pass filter and IIR-pass and band-pass filter at the end of classical calculation method of gray level co-occurrence matrix texture, blind signal processing with Wavelet analysis, stepwise linear regression, validation is available, two-dimensional Photonic Crystal FDTD method for calculating band example.