《Matlab课程设计》_数字切比雪夫高通IIR滤波器.docVIP

目录 摘要 2 ABSTRACT 3 1 MATLAB简介 4 1.1 MATLAB的概况 4 1.2 MATLAB产生的历史背景 4 1.3 MATLAB的语言特点 5 1.4 MATLAB界面介绍 6 1.4.1工作环境窗口 6 1.4.2当前路径窗口 7 2. 数字滤波器 8 2.1数字滤波器的概念 8 2.2数字滤波器的分类 8 2.3数字滤波器的设计要求 10 3. IIR数字滤波器的设计 10 3.1设计原理 10 3.2设计步骤 11 4.切比雪夫IIR数字滤波器 12 5.双线性变换法设计IIR数字滤波器 13 5.1设计原理 13 5.2双线性变换的优缺点 15 6. 数字切比雪夫高通IIR滤波器设计 18 6.1设计流程图 18 6.2程序设计及运行结果 19 6.2.1设计过程 19 6.2.2运行结果 21 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，(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。M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IIR 高通滤波器 ABSTRACTIn modern communication systems, Because often mixed with various signal complex components, So many signal analysis is based on filters, and the digital filter is realized through numerical computation, digital filters filter with high precision, stability and flexibility, dont 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 matrix computation, the calculation, visualization and program design of organic 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 can easily for scientific research and engineering application. This paper introduces the concept of digital filters, classification and design requirements.Then he gradually introduced the IIR digital filt