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

绍了利用MATLAB信号处理工具箱进FIR滤波器设计的三种方法：程序设计法、FDATool设计法和SPTool设计法，给出了详细的设计步骤，并将设计的滤波器应用到一个混和正弦波信号，以验证滤波器的性能。-FIR filter design using matlab(including code)