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《基于fpga的fir數(shù)字濾波器設(shè)計(jì)設(shè)計(jì)》由會員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、I*****大學(xué)畢業(yè)論文設(shè)計(jì)題目基于FPGA的FIR數(shù)字濾波器設(shè)計(jì)作者****學(xué)院********學(xué)院專業(yè)電子信息技術(shù)與科學(xué)學(xué)號1110802****指導(dǎo)教師****III摘要?FIR（Finite?Impulse?Response，F(xiàn)IR）數(shù)字濾波器被大量的運(yùn)用因?yàn)槠淞己玫奶匦詫儆跀?shù)字信號處理的基本模塊之一。在工程實(shí)踐中，我們對信號處理的實(shí)時(shí)性和靈活性有很高的要求，而己有的一些軟件和硬件實(shí)現(xiàn)方式則難以同時(shí)達(dá)到這兩方面的要求。?本文研究了基于FPGA的FIR數(shù)字低通濾波器的設(shè)計(jì)及實(shí)現(xiàn)，其主要工作如下:?(1)以FIR數(shù)字濾波器的基本理論為依據(jù)，在MATLAB上通過
2、等波紋逼近法計(jì)算得出濾波系數(shù)，并分析其幅頻、相頻特性判斷是否滿足要求。?(2)在FPGA的設(shè)計(jì)中，采用了層次化、模塊化的設(shè)計(jì)思想，將整個(gè)濾波器劃分為多個(gè)功能模塊，利用Verilog語言和原理圖輸入兩種設(shè)計(jì)技術(shù)進(jìn)行了各個(gè)功能模塊的設(shè)計(jì)，并用MATLAB、QuartusII軟件進(jìn)行了仿真。最終完成了FIR數(shù)字濾波器的系統(tǒng)設(shè)計(jì)。?(3)將設(shè)計(jì)的64階的FIR低通濾波器下載FPGA(EP2C5T114C8N)芯片中后，用示波器觀察到設(shè)計(jì)結(jié)果符合要求，證明了所設(shè)計(jì)的FIR數(shù)字濾波器功能正確。且其結(jié)果也表明了FPGA來實(shí)現(xiàn)FIR濾波器，既具有實(shí)時(shí)性，又有一定的靈活性。???關(guān)
3、鍵詞?：FIR數(shù)字濾波器；MATLAB；可編程邏輯器件；模塊化算法??IIIAbstractthe?FIR?digital?filter?is?used?form?any?practical?applications?for?its?good?linear?phase?character,?and?it?provide?an?important?function?in?digital?signal?processing?design.?In?engineering?practice,?there?is?always?a?real-time?and?flexible
4、?requirement?for?signal?processing.?However,?software?and?hardware?techniques?available?for?implementation?are?difficult?to?meet?the?demand?for?the?two?aspects?in?the?same?time.(1)?With?the?basic?theory?of?FIR?digital?filters?for?basis,?In?MATLAB?through?corrugated?approximation?metho
5、d?such?as?calculated?filter?coefficient,?and?analyzes?the?amplitude?frequency,?phase?frequency?characteristics?determine?whether?meet?the?requirements.?(2)?In?the?FPGA?design,?the?arrangement,?modular?design?thought,?the?filter?will?be?divided?into?multiple?function?module,?the?use?of
6、?language?and?Verilog?principle?chart?input?two?design?technology?of?each?function?module?design,?with?MATLAB,?QuartusII?software?simulation.?Eventually?completed?the?FIR?digital?filters?system?design.?(3)??Download?the?64?order?of?the?design?of?the?low?FIR?filter?into?FPGA?(EP2C5T114
7、C8N)?chip,?with?an?oscilloscope?to?observe?the?design?result?accords?with?a?requirement,?Show?the?design?of?FIR?digital?filters?function?correctly.?And?the?results?also?show?that?the?FPGA?to?achieve?FIR?filter,?has?both?the?real-time?property,?also?has?the?certain?flexibility.?Keyword
8、s:FIR
