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DSP 原理与应用课程设计报告
FIR 语音信号滤波器设计
姓 名：
班 级：
学 号：
指导老师：
日期： 2016.6.6～2016.6.15
电子工程学院
电子信息工程系
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摘 要
当前，数字信号处理技术受到了人们的广泛关注，其理论及算法随着计机技术和微
电子技术的发展得到了飞速地发展，并被广泛应用于语音和图象理、数字通信、谱分析、
模式识别和自动控制等领域。数字滤波器是数字信处理中最重要的组成部分之一，几乎
出现在所有的数字信号处理系统中。本课题研究的数字滤波器基本理论及其实现方法，
为数字滤波器的实现奠定了理论基础。为数字滤波的相关领域提供了理论及技术准备，
缩短了理论与实践的距离，为今后从事数字滤波和 DSP 技术研究开发工作奠定了基础，
积累了经验。
关键词: DSP；集成开发环境；CCS；数字滤波器；
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目 录
1 前言 ··························································································· 1
2 设计需求 ····················································································· 1
3 滤波器设计原理介绍 ······································································· 2
3.1 数字滤波器设计原理······························································· 2
3.2 FIR 滤波器的基本结构··························································· 3
3.3 滤波器的特点 ········································································ 3
3.4 窗函数的介绍 ········································································ 4
4 FIR 滤波器的设计 ·········································································· 5
4.1 FIR 滤波器设计 ······································································ 5
4.2 窗函数设计的基本方法 ··························································· 6
4.3 滤波器的
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算法实现 ······························································ 7
5 FIR 滤波器的 MATLAB 实现 ···························································· 8
6 FIR 滤波器的 DSP 实现 ··································································· 9
7 调试问题与解决办法 ····································································· 12
8 设计感想 ···················································································· 13
附录 ····························································································· 14
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