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《基于fpga的高速數(shù)據(jù)采集及海量存儲(chǔ)系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)》由會(huì)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(kù)。
1、南京理工大學(xué)碩士學(xué)位論文基于FPGA的高速數(shù)據(jù)采集及海量存儲(chǔ)系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)姓名:陳玙申請(qǐng)學(xué)位級(jí)別:碩士專業(yè):通信與信息系統(tǒng)指導(dǎo)教師:王志華20100601碩士論文基于FPGA的高速數(shù)據(jù)采集及海量存儲(chǔ)系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)摘要數(shù)據(jù)采集技術(shù)是信息科學(xué)的重要組成部分,也是現(xiàn)代檢測(cè)技術(shù)的基礎(chǔ)。隨著現(xiàn)代科學(xué)技術(shù)的應(yīng)用需求,數(shù)據(jù)采集經(jīng)常與數(shù)據(jù)處理、存儲(chǔ)作為一個(gè)完整的系統(tǒng)用于航空航天、圖像分析、雷達(dá)探測(cè)等領(lǐng)域;另一方面,隨著制造工藝的發(fā)展,采集速度與存儲(chǔ)容量也得到了極大提升。目前,以FPGA為核心,同時(shí)結(jié)合高速采集技術(shù)與海量存儲(chǔ)技術(shù)的數(shù)字系統(tǒng)是人們研究的
2、熱點(diǎn)。本文首先介紹了數(shù)據(jù)采集與存儲(chǔ)技術(shù)的國(guó)內(nèi)外發(fā)展現(xiàn)狀與應(yīng)用前景,隨后根據(jù)系統(tǒng)指標(biāo)確定了系統(tǒng)總體方案及各子模塊的實(shí)現(xiàn)方案。本設(shè)計(jì)實(shí)現(xiàn)了高速數(shù)據(jù)采集,并通過(guò)光纖通道將采樣數(shù)據(jù)存儲(chǔ)到光纖硬盤(pán)中去。整個(gè)系統(tǒng)分為高速數(shù)據(jù)采集模塊、數(shù)據(jù)緩沖模塊、數(shù)據(jù)存儲(chǔ)模塊。其中數(shù)據(jù)采集模塊對(duì)濾波放大后的輸入信號(hào)進(jìn)行采樣,采樣率可調(diào);數(shù)據(jù)緩沖模塊負(fù)責(zé)對(duì)采樣得到的數(shù)據(jù)進(jìn)行緩存;數(shù)據(jù)存儲(chǔ)模塊負(fù)責(zé)將緩存后的數(shù)據(jù)傳輸至光纖硬盤(pán)進(jìn)行存儲(chǔ)。本設(shè)計(jì)利用FPGA來(lái)對(duì)整個(gè)系統(tǒng)進(jìn)行控制,并向各模塊提供其所需的時(shí)鐘。本文使用了Multisim、Modelsim等仿真工具對(duì)各子模塊功能
3、進(jìn)行了時(shí)序仿真,最后介紹了本設(shè)計(jì)中制作的兩塊電路板并加以調(diào)試,測(cè)試結(jié)果表明本設(shè)計(jì)滿足系統(tǒng)指標(biāo)。關(guān)鍵詞:數(shù)據(jù)采集,F(xiàn)PGA,海量存儲(chǔ),光纖傳輸Abstract碩士論文DataacquisitiontechniqueisallimportantcomponentofInformationScience,aswellasthebasisofmodemdetectiontechniques.Withtheneedsofscienceandtechnology,dataacquisition,unitedwithdataprocessingand
4、storage,isoftenappliedintothefieldsofaerospace,imagetreatmentandradardetection.Ontheotherhand,withthedevelopmentofmanufacturingprocess,thepickingrateandstorecapacityhavebeenhighlyimproved.Atpresent,withacoreofFPGA,thedigitalsystemunitedwithhighspeeddataacquisitionandmass
5、memoryhasbecomeahotspot.Thisdissertationintroducesthecurrentsituationofdataacquisitionandstorageathomeandabroad,aswellastheprospectofapplication.Thenitconfirmstheimplementationsofthewholesystemandsubmodulesaccordingtothesystemindexes.Thisdesignrealizeshighspeedacquisitio
6、nanditisdesignedtocommunicatewithafiberharddiskSOthatthesesampledataCanbestored.Thewholesystemconsistsofhi【ghspeeddataacquisitionmodule,databuffermoduleanddatastoragemodule.Dataacquisitionmoduleregulatesthesampleratetosampletheanalogdataafterthesignalisfilteredandmagnifi
7、ed.Databuffermoduletakeschargeofcachingthesampledataandthenthelastmodulewilltransportthemtotheopticalharddiskforstorage.ThisdesignmakesuseofFPGAtocontrolthesystemandprovidethe.requiredclocksofeachmodule.ThispaperusestheMultisimandModelsimsimulationtoolstosimulatethetimin
8、gofthreesubmodulesandfinallydescribesthetwocircuitboardsusedinthisdesign.Thetestresultsprovethatthisdes