&—oRDERDOPPLEREFFECToFMOVINGOBJECTZhangXinggan,BaiYechao(DepartmentofElectronicScienceandEngineering,NanjingUniversity,Nanjing,210093,)Abstract:Theone—orderphaseoftheechochangesifthereisrelativeradialmovingbetweentheobjectandtheradar,.,—tionoftheobjectcannotchangetheone—orderphaseoftheecho,butthehigh——orderDopplereffectofthetransversemovingtargetispresentedandanewalgorithmforobtainingthetransverseveloc-—orderandtwo—,%:Dopplereffect;curvefitting;transversemovement;umber:TN951Documentcode:AArticleID:1005—1120(2009)03—0224一O5INTRoDUCTIoNDopplereffectmeansthatthesignalfrequen—,,theDopplershiftfrequency}&causedbytheradialmotionis[1]厂d:where',(1)andthesignalfrequencycausedtargetrelativeto厂d=(2)[-,andmostofthemarepassive,suchasplanes,—()oftheplanecanbetom—putedbyEq.(2).Justtheradialvelocityofthedetectedplanecanbeobtainedbythe
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