文档介绍：摘要
传统的数字滤波器的设计过程复杂,计算工作量大,滤波特性调整困难,影响了它的应用。本文介绍了一种利用MATLAB信号处理工具箱(Signal Processing Toolbox)快速有效的设计由软件组成的常规数字滤波器的设计方法。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,极大的减轻了工作量,有利于滤波器设计的最优化。本文还介绍了如何利用MATLAB环境下的仿真软件Simulink对所设计的滤波器进行模拟仿真。介绍了无限长数字滤波器的传统设计思想与步骤,及其计算机辅助设计方法。以一数字带通滤波器为例,着重说明了基于MATLAB的三种实现手段:模拟低通原型、合适模拟带通及直接原型,为数字滤波器设计带来全新的实现手段,设计快捷方便,仿真波形直观。介绍了利用MATLAB信号处理工具箱进无限长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.
关键词:数字滤波器 MATLAB 无限长无限长 FPGA
Abstract
Traditional digital filter design plex, putationwork load is big, the filter characteristic adjustment difficulty, hasaffected its application. This article introduced one kind using theMATLAB signal processing toolbox (Signal Processing Toolbox) the fasteffective design the conventional numeral filter design method posed by software. Produced has used the MATLAB language tocarry on the programming and carries on contact surface design usingthe signal processing toolbox FDATool tool the detailed step. Usingthe MATLAB design filter, may contrast the design request and thefilter characteristic adjustment parameter as necessary,direct-viewing is simple, enormous reduced the work load, isadvantageous optimization which designs to the filter.
Key word: Digital filter MATLAB 无限长无限长
目录
摘要………………………………………………………………………………....1
Abstract………………………………………………………….…….…….…....…..2
引言………………………………………………….….………..…………..5
…………………………….……….....…….….…5
…………………………………………………..……..……..………...….6
第二章数字滤波器的MATLAB设计……………………………………...……….8
MATLAB的设计方法.............….....................................……….......................9
FDATool界面设计....…...........……...........................…….........................9
…………………………………………………...…...….......10
Simulink仿真…………………………………………………....……......11
 SPTool设计法…………...………………………………………….........12
……………………………………………………….…….…..…...13