星載SAR多普勒中心實時估計技術(shù)研究.pdf

1、分類號翌!芝望：￡!羅UDC坦i強iiji一密級編號中國科學院研究生院碩士學位論文N808976星塾墨△壁整萱勤史：墜塞盟氈鹽楚盔嬰窒三綏擅指導教師差拴塹究雖：蟲圍魁堂院魚至燮堡窒壓一申請學位級別亟學科專業(yè)名稱。逗籃笪籃基丕筮論文提交目期壘壁鰱笙蔓廈論文答辯舀朝壘壁鱉笙蠢愛一密養(yǎng)單蘊壹量魁堂睦整至堂愛窒盛一學位授予單位史園型堂瞳殛塞壘墮答辯委員會主席盔鏨魚塑絲AbstractWangShaoqing(Communication＆Info

2、rmationSystem)DirectedbyProfHanSongThespace—borneSAIl佑yntheticApertureRadar)cangetradarimageswithhighresolutionThetechnologyofSARtakesapplicationvastlyinbothmilitaryandcivilfieldsTheDopplercentroidrealtimeestimationisone

3、oftheimportantpartsofthereal—timeima西ngprocessorofSAllDuetothelargeamountandhigh—speedoftheradardatatransaction，itisarealchallengeforreal—timerealizationofDopplercentroidestimationTherefore，itisveryimportanttoachievetheD

4、opplercentroidreallimeestimationefficientlywithrefinedstructureandsoftwarehardwareoptimizationThispaperfocusesonthedesignoftheDopplercentroidreal—timeestimationprocessingboardFirstlytheimagingtheoryofspaceborneSARisintro

5、ducedSecondlytheDopplercenlroidreal—timeestimationalgorithmisanalyzedThirdlytheADSP—TSl01sisemployedasthecoreprocessortocarryouttheDopplercentroidrealtimeestimationbasedonthestructureddesignThestructuredesignandsoftwaref

6、lowoptimized，thehardwareresourceexploitedeconomically，theDopplercentroidrealtimeestimationisrealizedBasedonthetheoryoftheSAltDopplercentroidreal—timeestimation，thispaperdiscussestheparallelprocessingtechnologyusuallyused

7、inhigh—speedDSPincludingparallelinachiporinterchipparallelorintersubsystemparallelMoreattentionispaidtothestructuraldesignofDopplercentroidreal—timeestimationprocessingboardandmodulesjndetailsareshowninthispaperIntheend，

8、DopplercentroidrealtimeestimationbasedoncorrelationDopplerestimatorisperformedontheDSPplatformWiththedevelopmentofVLSI，highdensitymemorywithhighspeedandcomputertechnologytherealtimeprocessingsystemofSAPkeepsrapiddevelopm

9、entcontinuouslyincludingitsrealizationfashion，algorithmandsystemstructureHoweverspacebornerealtimesignalprocessingsystemoffulldigitalandhjghresolutionisstillachallengeThisdissertationtakestheexamplewiththedesignofDoppler

10、centroidrealtimeestimationofspace—bornereal—timesystemWishithelpthefuturedesignoffulldigitalspacebornereal—timesystemofSARKeywords：SpaceborneSyntheticApertureRadar，DopplerCentroidRealtimeEstimation，ADSP—TSl01s，Structured