{"title":"雷达成像中矩形和六边形合成孔径的比较","authors":"Jonas Wagner, J. Barowski, C. Dahl, I. Rolfes","doi":"10.23919/EURAD.2018.8546654","DOIUrl":null,"url":null,"abstract":"In this paper, rectangular and hexagonal spatial distributions are analyzed in order to compare their usability to form the aperture of a nearfield Synthetic Aperture Radar (SAR) using the backprojection algorithm. The algorithm itself and its computational efficiency are in general independent from the antenna grid. It is shown that this approach is suitable to reduce the maximum side lobe level by 12.5% with nearly no effect on the main lobe width, if the spacing between the antenna positions is chosen in the right way. Additionally this paper presents radar measurement results at 144 GHz that support the theoretical investigations.","PeriodicalId":171460,"journal":{"name":"2018 15th European Radar Conference (EuRAD)","volume":"399 5","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Comparison between Rectangular and Hexagonal Synthetic Apertures for Radar Imaging\",\"authors\":\"Jonas Wagner, J. Barowski, C. Dahl, I. Rolfes\",\"doi\":\"10.23919/EURAD.2018.8546654\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, rectangular and hexagonal spatial distributions are analyzed in order to compare their usability to form the aperture of a nearfield Synthetic Aperture Radar (SAR) using the backprojection algorithm. The algorithm itself and its computational efficiency are in general independent from the antenna grid. It is shown that this approach is suitable to reduce the maximum side lobe level by 12.5% with nearly no effect on the main lobe width, if the spacing between the antenna positions is chosen in the right way. Additionally this paper presents radar measurement results at 144 GHz that support the theoretical investigations.\",\"PeriodicalId\":171460,\"journal\":{\"name\":\"2018 15th European Radar Conference (EuRAD)\",\"volume\":\"399 5\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2018 15th European Radar Conference (EuRAD)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.23919/EURAD.2018.8546654\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 15th European Radar Conference (EuRAD)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.23919/EURAD.2018.8546654","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Comparison between Rectangular and Hexagonal Synthetic Apertures for Radar Imaging
In this paper, rectangular and hexagonal spatial distributions are analyzed in order to compare their usability to form the aperture of a nearfield Synthetic Aperture Radar (SAR) using the backprojection algorithm. The algorithm itself and its computational efficiency are in general independent from the antenna grid. It is shown that this approach is suitable to reduce the maximum side lobe level by 12.5% with nearly no effect on the main lobe width, if the spacing between the antenna positions is chosen in the right way. Additionally this paper presents radar measurement results at 144 GHz that support the theoretical investigations.
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