使用DSP和MATLAB设计的一个低通FIR滤波器,基本上实现了滤波的效果-The use of DSP and MATLAB to design a low pass FIR filter, basically realized the filtering effect

基于matlab的FIR滤波器，有低通，带通滤波器，能够较好地实现信号的分离(Matlab based FIR filter, with low pass, bandpass filter, can achieve better signal separation)