第 卷 第 期 系统工程与电子技术 44 1 DOI TN957 A :10.12305/j.issn.1001G506X.2022.01.05 DynamicRCSstatisticalcharacteristicsanalysisofstealthaircraftbasedon improvedhybridlognormaldistributionmodel 1,2,∗ 1 1 MA Qiankuo ,ZHANG Xiaokuan ,ZONGBinfeng , 2 2 2 XUJiahua ,WANG Yang ,ZHENGShuyu 1.Airand MissileDeenseCollee AirForceEnineerin Universit Xian710051 China ( f g , g g y, ’ , ; 2.GraduateSchool AirForceEnineerin Universit Xian710051 China , g g y, ’ , ) Abstract :Aimingattheproblemthattheclassicalmodelisnotaccurateenoughtodescribethestatistical distributioncharacteristicsofdynamicradarcrosssection (RCS)ofstealthaircraftundercomplextrack,an improvedhybridlognormaldistributionmode