ISAR基帶干擾信號研究與實現(xiàn).pdf

1、電子科技大學碩士學位論文ISAR基帶干擾信號研究與實現(xiàn)姓名：余華章申請學位級別：碩士專業(yè)：信號與信息處理指導教師：呂幼新20090501ABSTRACTinverseSyntheticApertureRadarisabroadbandhigh—resolutionmicrowaveimagingsystemNowISARimaginghasbeenappliedtothemilitaryfield，likegoalclassificat

2、ion，recognitionmidentificationoftheenemyonthebattlefield，andprecisionguidedweaponsandSOonTherefore，ithasgreatsignificancetocarryoutoftheISARradarinterferencestudyThisarticlemainlyCalTyoutGBRradarjammingsignalsresearchwor

3、k，proposedtheISARbasebandinterferencesignalmathematicalmodelundertheISARradarechosignalcharacteristics，threenewstyleinterferencesignalshasbeendesignedaccordtothismodelThearticlefocusonthethreestyleinterferencesignals’Sha

4、rdwareimplementationOnhardwareimplementationadoptedIFFTbasedhigh—performancerealtimecomputinghardwarestructure，introducedthesolutionoftheencounteredkeytechnicalprobleminthedesignofthisarchitecture，andthedesignofthisarchi

5、tecturehasbeenSuccessimplementinAlterahighendstraixIIFPGAchipEP2S180Asthecorehardwareoftheradarinterfercesystem，ithastheabletogeneratehi班speedreal—timeISARradarinterferencesignalSimulationandexperimentsshowthatthroughrad

6、arimagingprocesstotheinterferencesignal，wecallacquiretheexceptinterferenceimage，theinterferencesignalhasreachedthedesiredeffectThemainjobcontentandresultsofthearticleasfollows：1、Thearticlebrieflyintroducethebasicprincipl

7、esofthebroadbandISARradarimagingsystem，andvarietyofradarsignalinterferencemechanismPointingoutthatthegoodinterferenc宅signalcharacteristicsshouldbematchedwiththecharacteristicsofradarsignals；2、Completedthethreekindsofstyl

8、esofbasebandsignalmathematicalmodelaccordtotheradarechosigna；3、Focusesonintroducetheimpletmentionprogramofthebasebandinterferencesignalgeneratemodule；4、Introducethesolutionoftheencounteredkeytechnicalprobleminthedesignof