用MATLAB实现的信号处理！ 低通滤波器高通滤波器可以输出方波！-MATLAB signal processing! Low-pass filter high-pass filter can output pulse!

双线性变换法无限长单位脉冲响应滤波器的设计，用到的模拟原型是切比雪夫和巴特沃斯低通滤波器。能够显示滤波器的幅频特性和相频特性曲线-bilinear transform infinite impulse response filter units in the design, use of simulation is a prototype and Chebyshev low-pass Butterworth filter. To demonstrate the filter frequency

波形显示程序,高通滤波和低通滤波..........波形显示程序,高通滤波和低通滤波-waveform display program, the high-pass filter and low-pass filtering .......... waveform display program. high-pass filter and a low-pass filter

matlab code 巴特沃思低通滤波器设计-应用BUTTER函数-Matlab code Butterworth low-pass filter design-function application BUTTER