【正文】 基于 MATLAB 與 CCS 的 IIR 濾波器設(shè)計 摘 要 當(dāng)前，數(shù)字信號處理技術(shù)受到了人們的廣泛關(guān)注，其理論及算法隨著計機技術(shù)和微電子技術(shù)的發(fā)展得到了飛速地發(fā)展，并被廣泛應(yīng)用于語音和圖象理、數(shù)字通信、譜分析、模式識別和自動控制等領(lǐng)域。數(shù)字濾波器是數(shù)字信處理中最重要的組成部分之一，幾乎出現(xiàn)在所有的數(shù)字信號處理系統(tǒng)中。本課題研究的數(shù)字濾波器基本理論及其實現(xiàn)方法，為數(shù)字濾波器的實現(xiàn)奠定了理論基礎(chǔ)。為數(shù)字濾波的相關(guān)領(lǐng)域提供了理論及技術(shù)準(zhǔn)備，縮短了理論與實踐的距離，為今后從事數(shù)字濾波和 DSP 技術(shù)研究開發(fā)工作奠定了基 礎(chǔ)，積累了經(jīng)驗。 關(guān)鍵詞 : DSP；集成開發(fā)環(huán)境； CCS；數(shù)字濾波器； IIR Based on MATLAB and CCS, IIR filter design Abstract At present, digital signal processing technology has been widespread concern, its theory and algorithm with the total machine technology and the development of microelectronics technology has been rapidly evolving, and is widely used in voice and image science, digital munications, spectral analysis , pattern recognition and automation fields. Digital filter is a digital channel processing, one of the most important ponent of almost appear in all of the digital signal processing systems. Of this research project the basic theory of digital filters and its realization method for the realization of digital filters has laid a theoretical basis. Relevant fields for the digital filter provides a theoretical and technical preparation, shortening the distance between theory and practice for the future in digital filtering and DSP technology research and development basis for the work and accumulated experience. Keywords: DSP。 integrated development environment。 CCS。 digital filter。 IIR 目錄 第一章 緒論 ..........................................................................................................................1 課題背景 .....................................................................................................................1 研究意義 .....................................................................................................................1 國內(nèi)外相關(guān)領(lǐng)域的研究進展 .........................................................................................1 第二章 IIR濾波器的 MATLAB 輔助設(shè)計 ................................................................................3 LAB 簡介 ..........................................................................................................3 IIR 濾波器的結(jié)構(gòu) ......................................................................................................3 直接型 ...............................................................................................................3 直接 II型 ...........................................................................................................4 級聯(lián)型 ...............................................................................................................5 并聯(lián)型 ..............................................................................................................7 IIR 濾波器的幾種結(jié)構(gòu)形式的性能 ....................................................................8 典型的 IIR數(shù)字濾波器的設(shè)計 ......................................................................................9 典型低通 Chebyshevl型數(shù)字濾波器的設(shè)計 ..........................................................9 完全濾波器設(shè)計 ............................................................................................... 11 第三章 數(shù)字濾波器在 DSP 上的實現(xiàn) .................................................................................. 14 CCS簡介 ................................................................................................................ 14 MATLAB 與 DSP 之間的連接 .................................................................................. 14 技術(shù)難點 .................................................................................................................. 15 定點數(shù)的定標(biāo) ................................................................................................. 15 誤差問題 ....................................................................................................... 15 數(shù)字濾波 DSP 實現(xiàn)程序設(shè)計 ...................................................................................... 16 CCS仿真結(jié)果及分析 .............................................................................................. 18 帶通濾波器的 MATLAB 仿真結(jié)果 .............................................................................. 20 第四章 結(jié)論 ........................................................................................................................ 22 參考文獻 ............................................................................................................................... 23 基于 MATLAB 與 CCS 的 IIR 濾波器設(shè)計 緒論 1 第