有限字长效应对滤波器的影响仿真程序。对IIR和FIR滤波器分别进行仿真，结果为零极点和信号波形。mian.m是主程序，其余两个是用来模拟量化误差的子程序。比较不错的程序哦～-The word filter to deal with a limited impact on long-term simulation program. IIR and FIR filters for each simulation, the results of zero-pole and signal waveform. mian.m is the main program, and the remaining two are used to simulate the quantization error of the subroutine. Oh well the procedure compared ~