基于高分辨一維距離像的雷達目標識別.pdf

1、杭州電子科技大學(xué)碩士學(xué)位論文基于高分辨一維距離像的雷達目標識別姓名：謝芳平申請學(xué)位級別：碩士專業(yè)：電路與系統(tǒng)指導(dǎo)教師：官伯然20091201杭州電子科技大學(xué)碩士學(xué)位論文IIABSTRACTABSTRACTRadartargetidentification（RTI）isanimptantdevelopingfieldofmodernradartechnology.Modernradartechnologybecomematuredayby

2、daymakesitpossibletodevelopapracticalRTIsystem.InthispapertheproblemofrecognitionofradartargetusingHighResolutionRangeProfiles(HRRP)ismainlystudiedbythemeansoftechniquesinmodernsignalprocessinmodernpatternrecognition.Bec

3、auseHighResolutionRangeProfilecanprovidemeaccuratetargetstructureshapeinfmation，researchonRTIbasedononedimensionalrangeprofileissignificancefboththeypractice.Inthisthesisitscontentiginalityaresynthesizedasfollows:Firstth

4、ebasicconceptsofradartargetrecognitionthebasicmethodofrecognitionofrangeprofilesaresurveied.Thestatusquoofradartargetidentificationisanalyzed.ThepaperintroducetheconceptofradartargetcrosssectionbroadbtargetRCSacteristics

5、RCSpreestimatingmethod.TheconceptofmultitargetscatteringcenterRangeprofilemodelarebewrited.Theacteristicsoftypicalaircraftelectromagicscatteringthatvarywithaspectareanalyzeddeeply.Inparticulartheprinciplesimulationmethod

6、ofHighHesolutionRangeProfilesisstudied.AfterthemathematicalmodeloftheRangeProfilefeatureswhichisbasedonthemultiscatteringCenteranalysishavebeenmadeonechoacteristicsofasinglerangeprofilecrossrangeprofile.Researchhasalsobe

7、enmadeonkeytechniquesofrecognitionofonedimensionalrangeprofileinwhichaspectsensitivitytranslationsensitivityamplitudesensitivityshoulddealwithpretreatment.Studyingoflinearfrequencymodulationstepfrequencynoloadbinaryphase

8、codedultrawidebradarimagingalgithmbasedon.Analysisoftheechoacteristicsofmultiobjectivemultiscatteringcentersaredistributedonedimensionalrangeprofile.Underthewidebdigitalpulsecompressionoflinearfrequencymodulation(LFM)sig

9、nalbothfreceivingtransmittingthetargetrecognitionproblemfmingtheonedimensionrangeprofileinhighresolutionradarstretchprocessingrangeisanalyzed.TheradarechomodelfmultitargetofwideblinearfrequencymodulatedsignalStretchproce

10、ssingisderivedthemultitargetidentificationaccdingtoonedimensionrangeprofileisanalyzed.Thereceivedpulsewidthexpingcenterfrequencyshiftingduetorangedopplercouplingofmovingtargetarediscussedaradialvelocitycompensationmethod