文档介绍：精品资料
目录
摘要 2
ABSTRACT 3
1 MATLAB简介 4
MATLAB的概况 4
MATLAB产生的历史背景 4
MATLAB的语言特点 5
MATLAB界面介绍 6
6
7
2. 数字滤波器 8
8
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3. IIR数字滤波器的设计 10
10
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6. 数字切比雪夫高通IIR滤波器设计 18
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7小结 23
8参考文献 24
摘要
在现代通信系统中,由于信号中经常混有各种复杂成分,所以很多信号分析都是基于滤波器而进行的,而数字滤波器是通过数值运算实现滤波,具有处理精度高、稳定、灵活、不存在阻抗匹配问题,可以实现模拟滤波器无法实现的特殊滤波功能。数字滤波器根据其冲激响应函数的时域特性,可分为两种,即无限长冲激响应(IIR)数字滤波器和有限长冲激响应(FIR)数字滤波器。实现IIR滤波器的阶次较低,所用的存储单元较少,效率高,精度高,而且能够保留一些模拟滤波器的优良特性,因此应用很广。Matlab软件以矩阵运算为基础,把计算、可视化及程序设计有机融合到交互式工作环境中,并且为数字滤波的研究和应用提供了一个直观、高效、便捷的利器。尤其是Matlab中的信号处理工具箱使各个领域的研究人员可以直观方便地进行科学研究与工程应用。本文首先介绍了数字滤波器的概念,分类以及设计要求。接着又逐步介绍了IIR数字滤波器,切比雪夫IIR数字滤波器,以及用双线性变换法设计IIR数字滤波器。本文重点设计了基于双线性变换的数字切比雪夫高通IIR滤波器。
关键词:Matlab 双线性切比雪夫IIR 高通滤波器
ABSTRACT
In munication systems, Because often mixed with various ponents, So many signal analysis is based on filters, and the digital filter is realized through putation, digital filters filter with high precision, stability and flexibility, don't exist, can realize the impedance matching simulating the special filter cannot achieve filter function. Digital filter according to its impulse response function and characteristics of the time can be divided into two kinds, namely the infinite impulse response (IIR) digital filter and finite impulse response (FIR digital filters). The order of realizing IIR filter is used, low and high efficiency less storage unit, high precision, and can keep some simulation characteristics of filter, so it is widely used. Matlab software based on putation, the calculation, visualization and program design anic integration to interactive environment for digital filter, and the research and application of provides an intuitive, efficient and convenient tool. Especially in the Matlab signal processing to all areas of research toolbox personnel