{"title":"目标沿非均匀随机粗糙表面运动时的多普勒频移散射","authors":"S. Nakashima, J. Honda, K. Uchida","doi":"10.1109/INCoS.2011.79","DOIUrl":null,"url":null,"abstract":"This paper is concerned with an analysis of backscattering of electromagnetic waves from a target moving along random rough surfaces (RRSs) such as desert, hilly terrain, forest, sea surface and so on. First we introduce the discrete ray tracing method (DRTM), and second we apply this method to the backscattering problem in order to investigate the influence of the backscattering from RRSs on the radar cross section. Finally we show some numerical examples for the Doppler shifted backscattering of the total fields in comparison with that of the subtracted fields. The subtracted express reflection from the target as well as electromagnetic interaction between target and rough surface. It is numerically demonstrated that the total backscattering dominates almost everywhere except for the near region of radar, even if we employ an antenna with a very sharp directivity. We also investigate statistics of Doppler shifted backscattering from a target.","PeriodicalId":235301,"journal":{"name":"2011 Third International Conference on Intelligent Networking and Collaborative Systems","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2011-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Doppler Shifted Scattering from a Target Moving Along Inhomogeneous Random Rough Surface\",\"authors\":\"S. Nakashima, J. Honda, K. Uchida\",\"doi\":\"10.1109/INCoS.2011.79\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper is concerned with an analysis of backscattering of electromagnetic waves from a target moving along random rough surfaces (RRSs) such as desert, hilly terrain, forest, sea surface and so on. First we introduce the discrete ray tracing method (DRTM), and second we apply this method to the backscattering problem in order to investigate the influence of the backscattering from RRSs on the radar cross section. Finally we show some numerical examples for the Doppler shifted backscattering of the total fields in comparison with that of the subtracted fields. The subtracted express reflection from the target as well as electromagnetic interaction between target and rough surface. It is numerically demonstrated that the total backscattering dominates almost everywhere except for the near region of radar, even if we employ an antenna with a very sharp directivity. We also investigate statistics of Doppler shifted backscattering from a target.\",\"PeriodicalId\":235301,\"journal\":{\"name\":\"2011 Third International Conference on Intelligent Networking and Collaborative Systems\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2011-11-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2011 Third International Conference on Intelligent Networking and Collaborative Systems\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/INCoS.2011.79\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2011 Third International Conference on Intelligent Networking and Collaborative Systems","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/INCoS.2011.79","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Doppler Shifted Scattering from a Target Moving Along Inhomogeneous Random Rough Surface
This paper is concerned with an analysis of backscattering of electromagnetic waves from a target moving along random rough surfaces (RRSs) such as desert, hilly terrain, forest, sea surface and so on. First we introduce the discrete ray tracing method (DRTM), and second we apply this method to the backscattering problem in order to investigate the influence of the backscattering from RRSs on the radar cross section. Finally we show some numerical examples for the Doppler shifted backscattering of the total fields in comparison with that of the subtracted fields. The subtracted express reflection from the target as well as electromagnetic interaction between target and rough surface. It is numerically demonstrated that the total backscattering dominates almost everywhere except for the near region of radar, even if we employ an antenna with a very sharp directivity. We also investigate statistics of Doppler shifted backscattering from a target.