Digital Signal Process in Matlab code. Include of filter IIR, FIR, low pass, high pass, pass-band, stop band

FIR滤波器matlab源程序，能够实现低通、高通、带通、带阻的滤波功能，滤波效果好。(FIR filter matlab source code, to achieve low-pass, high pass, band pass, with blocking filter function, filtering effect is good.)