基于FPGA的SAR實時成像與寬帶雷達信號偵察技術(shù).pdf

1、西安電子科技大學學位論文獨創(chuàng)性(或創(chuàng)新性)聲明秉承學校嚴謹?shù)膶W風和優(yōu)良的科學道德，本人聲明所呈交的論文是我個人在導(dǎo)師指導(dǎo)下進行的研究工作及取得的研究成果。盡我所知，除了文中特別加以標注和致謝中所羅列的內(nèi)容以外，論文中不包含其他人已經(jīng)發(fā)表或撰寫過的研究成果：也不包含為獲得西安電子科技大學或其它教育機構(gòu)的學位或證書而使用過的材料。與我一同工作的同志對本研究所做的任何貢獻均已在論文中做了明確的說明并表示了謝意。申請學位論文與資料若有不實之處，

2、本人承擔一切的法律責任。本人簽名：互礬瀉日期西安電子科技大學關(guān)于論文使用授權(quán)的說明本人完全了解西安電子科技大學有關(guān)保留和使用學位論文的規(guī)定，即：研究生在校攻讀學位期間論文工作的知識產(chǎn)權(quán)單位屬西安電子科技大學。學校有權(quán)保留送交論文的復(fù)印件，允許查閱和借閱論文；學校可以公布論文的全部或部分內(nèi)容，可以允許采用影印、縮印或其它復(fù)制手段保存論文。同時本人保證，畢業(yè)后結(jié)合學位論文研究課題再撰寫的文章一律署名單位為西安電子科技大學。(保密的論文在解密

3、后遵守此規(guī)定)本學位論文屬于保密，在年解密后適用本授權(quán)書。本人簽名：主復(fù)砷鳥導(dǎo)師簽名：日期：日期：ABSTRACTImagingradarhasthecharacteristicsofall—dayallweatherlongrangeandhighresolution，thusitplaysanimportantroleinthefieldsofbattlefieldinvestigations，spaceexploration，ci

4、vilremotesensingandotherapplicationareasAccordingtotherelativemotionbetweentheradarplatformandthetarget，imagingradarcanbeclassifiedassyntheticapertureradar(SAR)andinversesyntheticapertureradar(ISAR)Currentlythewidebandre

5、altimesignalprocessingtechnologyforimagingradarisahottopicinthefieldofradarsignalprocessingbecauseofitsimportanttheoreticalsignificanceandgreatapplicationvalueAsFPGAhasmanyvirtuessuchasparallelprocessingandflexibleprogra

6、mming，imagingradarhastremendousdemandsfortheFPGAbasedwidebandradarsignalprocessingtechnologyThisthesisdealswiththeFPGAbasedSARimagingalgorithmandthewidebandradarsignalreconnaissancetechnologysupportedbyTheNationalNatural

7、ScienceFoundationproject“Groundspecifictargetmultipolarizationimagingdetectionbasedonlargemaneuveringplatform(No11176022)”，andbysomecooperationprojectswithChinaAcademyofEngineeringPhysics，AerospaceScienceandTechnologyCor

8、porationInstituteandotherorganizationsThethesisisorganizedasfollows：Atthebeginningofthisthesis，wegivesthebasicintroductionstotheFPGAchiparchitectureanddigitallogiccircuits，includingtheirprogramminglanguagefeatures，design

9、principlesandmethodsThroughestablishingastripmodeSARimagingmodel，thethesisderivestheChirpScaling(cs)imagingalgorithmindetailandusesthealgorithmtoprocessboththesimulatedandmeasureddata，whichdemonstratesgoodSARimagingresul

10、tsAfterthat，weusethehardwaredescriptionlanguagetoprogramandimplementCSalgorithm，anddealwithameasureddataAtlastitmakesadetailedanalysisofthealgorithmonradarpulseextractiontechnologyandwidebandradarreconnaissanceThisthesis

11、comesupwithadesignmethodwithmultiplechirpsignalrecognitionability，whichcanaccuratelyestimatethearrivaltime，pulserepetitioninterval，pulsewidth，bandwidth，chirprate，andotherradarparametersThen，thenewalgorithmisreprogrammedi

12、ntodigitallogiccircuitusinghardwaredescriptionlanguageandistestedinaFPGAprocessingboardExperimentalresultsshowthattheproposedwidebandradarsignalreconnaissancetechnologyCanestimatethesignalparametersofwidebandimagingradar