【正文】 和 System View 兩款仿真軟件為工作平臺和開發(fā) 工具 ， 將二者結(jié)合起來 用于 FIR（ 有限沖激響應(yīng) ） 數(shù)字 濾波器 和橢圓模擬濾波器 的 仿真 實現(xiàn) 。 另外，論文 結(jié)合 抽樣定理 的 System View 實現(xiàn) ， 驗證了抽樣定理的正確性，且 說明了濾波器在 在 抽樣定理中的作用。 而 利用 MATLAB 和 System View 設(shè)計的濾波器能夠達到濾波器指標(biāo)要求， 且設(shè)計過程簡單易行 ,具有一定的實用價值。 關(guān)鍵詞： System View； MATLAB； 數(shù)字濾波器； 濾波器設(shè)計 ；仿真 Application of digital filter design based on System View and MATLAB ABSTRACT ： MATLAB and System View as the platform and development tool in this paper. MATLAB and System View be used for design and implementation of filter that the Finite Impulse Response (FIR) filter and elliptic analog filter. Through MATLAB language design Finite Impulse Response (FIR) digital lowpass filter based on the window functions methods, and investigate the window functions methods about filter design. Take elliptic analog filter as an example, introduce how to use the toolbox functions. This paper use the System View realize Finite Impulse Response (FIR) digital filter and elliptic analog filter, show the method of System View design filter. Implementation of sampling theorem in System View, verify the accuracy of sampling theorem, and shows the effects of filter in the sampling theorem. The simulation results show that design results can meet the requirements very well， and the design procedures simple and practical. Using MATLAB and System View can be pared design requirements and filter characteristics anytime, its can be adjust the parameters of the corresponding, intuition and simple. MATLAB and System View used in digital filter design that greatly reduces the workload of technical staff, in particular, the workload from putational. so technicians have more energy to development new types of filters, and also help optimization of filter design. Keywords: System View。 digital filter。 simulation I 目錄 1 緒論 ................................................................................................................................. 1 課題研究意義 ....................................................................................................... 1 國內(nèi)外研究現(xiàn)狀 ................................................................................................... 2 本文主要內(nèi)容 ....................................................................................................... 3 2 濾波器設(shè)計原理概述 ..................................................................................................... 3 數(shù)字濾波器的基本概念 ....................................................................................... 3 基本概念 ..................................................................................................... 3 數(shù)字濾波器分類 ......................................................................................... 3 FIR 濾波器的設(shè)計方法概述 ................................................................................ 4 FIR 濾波器的設(shè)計基 .................................................................................. 4 FIR 濾波器的設(shè)計方法 .............................................................................. 5 橢圓濾波器的設(shè)計概述 ....................................................................................... 5 所選用仿真軟件的簡介 ....................................................................................... 6 MATLAB 簡介 ............................................................................................ 6 System View 簡介 ....................................................................................... 6 本章小結(jié) ............................................................................................................... 7 3 濾波器的 System View 設(shè)計與仿真 ........................................................................... 8 FIR 數(shù)字濾波器的仿真與實現(xiàn) ............................................................................ 8 System View 的濾波器實現(xiàn) ....................................................................... 8 FIR 數(shù)字濾波器的設(shè)計 .............................................................................. 9 FIR 數(shù)字濾波器的性能驗證 .................................................................... 10 橢圓濾波器的設(shè)計與仿真 ................................................................................. 13 本章小結(jié) ............................................................................................................. 14 4 濾波器的 MATLAB 設(shè)計與仿真 ................................................................................. 15 窗函數(shù)法設(shè)計 FIR 濾波器 ................................................................................. 15 窗函數(shù)發(fā)設(shè)計 FIR 濾波器的基本思路 ................................................... 15 FIR 濾波器的設(shè)計 .................................................................................... 16 橢圓模擬濾波器的設(shè)計 ..................................................................................... 18 本章小結(jié) ............................................................................................................. 19 5 抽樣定理的 System View 仿真與 實現(xiàn) ........................................................................ 19 抽樣定理概述 ..................................................................................................... 19 低通信號抽樣定理在 System View 上的仿真 ................................................ 20 本章小結(jié) ............................................................................................................. 23 6 結(jié)論 ............................................................................................................................... 24 II 致辭 ........................................................................................