基于MATLAB信号处理工具箱的数字滤波器设计与仿真

介绍了一种利用MATLAB信号处理工具箱(SignalProcessingToolbox)快速有效地设计由软件组成的常规数字滤波器的方法。给出了使用MATLAB语言进行程序设计和利用信号处理工具箱的FDATool工具进行界面设计的详细步骤。利用MATLAB设计滤波器,可以随时对比设计要求和滤波器特性调整参数,直观简便,极大地减轻了工作量,有利于滤波器设计的最优化。还介绍了如何利用MATLAB环境下的仿真软件Simulink对所设计的滤波器进行模拟仿真。

Design and simulation of digital filter based on Signal Processing Toolbox of MATLAB

This paper introduces a method based on the Signal Processing Toolbox of MATLAB to design the digital filter effectively. To design the digital filter, it can be programmed by MATLAB language and designed by the FDATool interface. Particular steps of the two ways are given in this paper. Using this method, the parameters can be adjusted according to the design request and characteristics of filter momentarily. It reduces a lot of computation and is good for the optimization of filter design. The filter simulation based on Simulink under the condition of MATLAB is also introduced in this paper.