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本科畢業(yè)論文__基于dsp的數(shù)字濾波器設(shè)計(jì)-展示頁(yè)

2025-07-22 19:21本頁(yè)面
  

【正文】 chips is a particularly suitable for digital signal processing puting microprocessors, mainly used for realtime, the rapid realization of a variety of digital signal processing algorithms. DSP chips used to achieve FIR digital filter, not only has high accuracy, without the advantages of environmental impact, but also because of the programmable DSP chips, can be easily modified filter parameters, thus changing the filter characteristics of the design is very flexible. This project mainly applies the MATLAB software to design FIR digital filter。具體工作包括:對(duì) FIR 數(shù)字濾波器的基本理論進(jìn)行了分析和探討;采用 MATLAB 軟件來(lái)學(xué)習(xí)數(shù)字濾波器的基本知識(shí),計(jì)算數(shù)字濾波器的系數(shù),研究算法的可行性,對(duì) FIR 低通數(shù)字濾波器進(jìn)行前期的設(shè)計(jì)和仿真;系統(tǒng)介紹了 TI 公司 TMS320C54x 系列數(shù)字信號(hào)處理器的硬件結(jié)構(gòu)、性能特點(diǎn)和 DSP 的集成開(kāi)發(fā)環(huán)境 CCS;應(yīng)用 DSP 集成開(kāi)發(fā)環(huán)境 —— CCS 調(diào)試匯編程序,用 TMS320C5416 來(lái)實(shí)現(xiàn)了 FIR 數(shù)字濾波。用 DSP 芯片實(shí)現(xiàn) FIR 數(shù)字濾波器,不僅具有精確度高、不受環(huán)境影響等優(yōu)點(diǎn),而且因 DSP 芯片的可編程性,可方便地修改濾波器參數(shù),從而改變?yōu)V波器的特性,設(shè)計(jì)十分靈活。同時(shí) DSP(數(shù)字信號(hào)處理器 )的出現(xiàn)和 FPGA 的迅速發(fā)展也促進(jìn)了數(shù)字濾波器的發(fā)展,并為數(shù)字濾波器的硬件實(shí)現(xiàn)提供了更多的選擇。 xx 大學(xué)學(xué)士學(xué)位論文 I 基于 DSP 的數(shù)字濾波器設(shè)計(jì) 摘要 21世紀(jì)是數(shù)字化的時(shí)代,隨著信息處理技術(shù)的飛速發(fā)展,數(shù)字信號(hào)處理技術(shù)逐漸發(fā)展成為一門(mén)主流技術(shù),它在電子信息、通信、軟件無(wú)線電、自動(dòng)控制、儀表技術(shù)、信息家電等高科技領(lǐng)域得到了越來(lái)越廣泛的應(yīng)用。相對(duì)于模擬濾波器,數(shù)字濾波器沒(méi)有漂移,能夠處理低頻信號(hào),頻率響應(yīng)特性可做成非常接近于理想的特性,且精度可以達(dá)到很高,容易集成等,這些優(yōu)勢(shì)決定了數(shù)字濾波器的應(yīng)用越來(lái)越廣泛。 DSP 芯片是一種特別適合數(shù)字信號(hào)處理運(yùn)算的微處理器,主要用來(lái)實(shí)時(shí)、快速地實(shí)現(xiàn)各種數(shù)字信號(hào)處理算法。 本課題主要應(yīng)用 MATLAB 軟件設(shè)計(jì) FIR 數(shù)字濾波器,并對(duì)所設(shè)計(jì)的濾波器進(jìn)行仿真;應(yīng)用 DSP 集成開(kāi)發(fā)環(huán)境 —— CCS 調(diào)試匯編程序,用 TMS320C5416來(lái)實(shí)現(xiàn)了 FIR 數(shù)字濾波。 關(guān)鍵詞 數(shù)字濾波器; DSP; FIR(有限長(zhǎng)單位脈沖響應(yīng) ); MATLAB xx 大學(xué)學(xué)士學(xué)位論文 II Design of The Digital Filter Based on DSP Abstract 21century is the era of digitalization. With the rapid development of information processing technology, digital signal processing technology has developed as a kind of main technology gradually. It has been widely applied in the hightech fields of electronic information, munication, software radio, automatic control, instrument technology and information electrical household appliances, Relative to analogue filter, digital filter can process low frequency signal without excursion. Frequency response property can be made very close to ideal property。 imitates the designed filter。 uses TMS320C5416 to realize FIR digital filter. The specific works include: analyzing and discussing basic theories of FIR digital filter。 studying the feasibility of the way of calculation。 introducing in a systematic way the hardware structure and characteristics of TI Company39。DSP。MATLAB xx 大學(xué)學(xué)士學(xué)位論文 III 目錄 摘要 …… .................................................................................. 錯(cuò)誤 !未找到引用源。 第 1 章 緒論 ................................................................................................................ 1 數(shù)字濾波器的優(yōu)越性 ....................................................................................... 1 國(guó)內(nèi)外相關(guān)領(lǐng)域的相關(guān)進(jìn)展 ........................................................................... 2 數(shù)字濾波器的實(shí)現(xiàn)方法 ................................................................................... 3 主要研究?jī)?nèi)容 ................................................................................................... 3 第 2 章 FIR 濾波器基礎(chǔ) ............................................................................................. 4 FIR 濾波器的特點(diǎn) ............................................................................................. 4 FIR 濾波器的設(shè)計(jì)方法 ..................................................................................... 4 利用窗函數(shù)法設(shè)計(jì) FIR 濾波器 ................................................................ 4 用頻率抽樣法設(shè)計(jì) FIR 濾波器 ................................................................ 7 利用切比雪夫逼近法設(shè)計(jì) FIR 濾波器 .................................................... 7 FIR 濾波器的實(shí)現(xiàn)方法 ..................................................................................... 9 FIR 濾波器的實(shí)現(xiàn)結(jié)構(gòu) .............................................................................. 9 FIR 濾波器的實(shí)現(xiàn)方法 ............................................................................ 13 本章小結(jié) ......................................................................................................... 14 第 3 章 基于 MATLAB 的 FIR 濾波器的設(shè)計(jì) ....................................................... 15 MATLAB 簡(jiǎn)介 ................................................................................................ 15 基于 MATLAB 的 FIR 濾波器的設(shè)計(jì) .......................................................... 16 設(shè)計(jì)要求 .................................................................................................. 16 濾波器指標(biāo) .............................................................................................. 16 設(shè)計(jì)過(guò)程 .................................................................................................. 16 設(shè)計(jì)結(jié)果 .................................................................................................. 18 FIR 濾波器的 MATLAB 仿真 ........................................................................ 20 本章小結(jié) ......................................................................................................... 22 第 4 章 數(shù)字濾波器的 DSP 實(shí)現(xiàn) ............................................................................. 23 DSP 的基本特征 .............................................................................................. 23 TMS320C54xDSP 的硬件結(jié)構(gòu) ....................................................................... 24 總線結(jié)構(gòu) .................................................................................................. 24 中央處理單元 .......................................................................................... 25 內(nèi)部存儲(chǔ)器 .............................................................................................. 26 片內(nèi)外設(shè) .................................................................................................. 27 DSP 系統(tǒng)的設(shè)計(jì)與開(kāi)發(fā) .................................................................................. 27 DSP 系統(tǒng)的特點(diǎn) ............................................................................
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