SAR目标检测识别理论与关键技术-IEEEGRSS

1、comparisonofgeometry-baseddopplerambiguityresolvinsquiintsaranincreasesinthazimuthambiguitylevel； 在目标上移动的位置；互补增益率、互补增益率、非互补增益率wolfurtheimage .互动、 提升多普勒参数评估方法评估中心评估(ressimationfromechodataisanessentialprocedureforhighqualitysarprocessing多普勒中心评估) iguity )、dopplercentroidestimation，azimuthdataaresample

2、dbypulserepetitionfrequency (PRF )、thereisalwaysdopplercentroidambiguity、 and the bigger the squint angle is themorersioustheddopplerambiguitywillbe.dopplercentroidisusuallyexpressedintwoparts : thebasebe nddopplerambi guity number .双重中心建议， 基于几何体的多重演进分布(wda )多重演进分布(MLCC )多重演进分布(mlbf )基于几何体的分布therela

3、tingbetweendopplercentroidandrangewalkslope，sincethismethodisbasedonthegeometriccharacteristicsoftherangecompressedda itisnamedasgeometry-baseddopplerambiguityresolver .enteddopplercontrecontidcanbecomputedviaestimatingthrangewalkslope . conventionalradontransformscheme.radon transform : awell-knowt

4、oredetectingslope.itintegrationallingandbesprodedirectionint n onintoafeaturespace.itinvolvestwo-dimensionalilsasearch .基于几何的分配，交互式方案，thesslopeisseeasasearch 以及rentcontyisusedestomertherobustnessofsignal.itutilizsthepriorinformationofplatform andresherdontransformileintegrationofima 基于几何体的规则，隐藏式随机变换

5、方案，基于规则的信息平台，转换数据到二进制文件系统andconducttwo-stepradontransform，whiwhiwhowitisspasesanddrecedtheenetosearchthewholefeature .基于几何的协议，commetry 、22222222222222222222222222222222222222222222222222222222222222222222222222222222222222222223ametricmethodmetric -基于参数的自动聚焦(entropy/contrast )映射、Doppler rate estimat

6、ion nonparamemetramemothemodeproninentpointprocessing (PPP )阶梯函数(PGA )时间频率分析lowcontrastscenelowsnrwithoutprominentpointwhatcanwedo？Doppler rate estimation、Estimation Scheme、iticindicinstitytheddddopplerrateinlow-contrastscenecanbeestimatedindirectly .e dopplerrateinhigh-contrastsceneisestimatedfirss

7、ingradon-wignertransform以及dopplerraterrretisinverselyproportionaltorange， dopplerrrrretinlow-contrastsceneisestimatedinrectly .results highcontrastscenewithprominentpoint，时间频率分析，radd lowcontrastscenewithoutprominentpoint，时间频率分析，radon变换，Conclusions， geometry-basedschemecanbeusedtoresolvedopplerambiguityofsarwithlargemigration.thesportionofimprovedradontransformschemean ttentimesfasterthanconventionalradontransformscheme.anindirectestimationschem