这是我先根据MATLAB设计的一个FIR滤波器，然后c语言实现，是二阶的，非常好用。-This is my first one under the MATLAB FIR filter design, and then c languages to achieve, is the second order, quite well.

FIR二阶带通滤波器MATLAB仿真程序，分析，绘图，手动设置参数-Second-order band-pass FIR filter simulation program MATLAB, analysis, mapping, set the parameters manually