Matlab provides different options for digital filter design, which include function calls to filter algorithms and a graphical user interface called Sptool. A variety of filter design algorithms are available in Matlab for both IIR and FIR filter

利用MATLAB仿真软件系统结合双线性变换法设计一个数字巴特沃斯高通IIR滤波器-The use of MATLAB simulation software system with bilinear transformation method to design a digital Butterworth high-pass IIR filter