{"title":"Motion compensation and target classification based on parametric modeling of the instantaneous frequency of echoes backscattered from rigid bodies","authors":"S. Barbarossa, A. Scaglione","doi":"10.1109/ACSSC.1997.680183","DOIUrl":null,"url":null,"abstract":"In this paper we propose a method for motion compensation and target classification, where the feature extraction is performed directly on the received signal. The method does not rely upon the formation of a radar image for classification, as opposed to conventional techniques. The proposed procedure assumes that the target is a rigid body and possesses at least four dominant scatterers, whose instantaneous frequencies can be tracked separately. No assumptions are made on the relative radar-target motion which can be absolutely arbitrary. To discriminate echoes superimposed in time and, possibly, in frequency, we map the received signals onto the time-frequency plane and then apply a parametric estimation method. From a set of at least four dominant echoes, we extract a set of features which are independent of target location and aspect angle. Some simulation results are shown to validate the proposed procedure.","PeriodicalId":240431,"journal":{"name":"Conference Record of the Thirty-First Asilomar Conference on Signals, Systems and Computers (Cat. No.97CB36136)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1997-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Conference Record of the Thirty-First Asilomar Conference on Signals, Systems and Computers (Cat. No.97CB36136)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ACSSC.1997.680183","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
In this paper we propose a method for motion compensation and target classification, where the feature extraction is performed directly on the received signal. The method does not rely upon the formation of a radar image for classification, as opposed to conventional techniques. The proposed procedure assumes that the target is a rigid body and possesses at least four dominant scatterers, whose instantaneous frequencies can be tracked separately. No assumptions are made on the relative radar-target motion which can be absolutely arbitrary. To discriminate echoes superimposed in time and, possibly, in frequency, we map the received signals onto the time-frequency plane and then apply a parametric estimation method. From a set of at least four dominant echoes, we extract a set of features which are independent of target location and aspect angle. Some simulation results are shown to validate the proposed procedure.