Meng Jiang, Hongjun Wei, Chuheng Tang, Hui Zhang, Gang Xu
{"title":"Terrain Observation Using Ground-based Interferometric Millimeter-wave SAR Imaging","authors":"Meng Jiang, Hongjun Wei, Chuheng Tang, Hui Zhang, Gang Xu","doi":"10.1109/CISS57580.2022.9971207","DOIUrl":null,"url":null,"abstract":"Synthetic aperture radar (SAR) has been widely applied to terrain observation as an enhanced sensor for all-weather and all-day functions. In this paper, a ground-based millimeter-wave multi-channel interferometric SAR (InSAR) system design and high-resolution imaging algorithm are proposed, which is characterized by small-size, low-cost, and high-precision. Firstly, the frequency-domain imaging algorithm of chirp-scaling is adopted to realize the range cell migration correction (RCMC) and two-dimensional focusing. Then, multi-channel interferometric processing is used to obtain the angle estimation of the imaging scene. Finally, experiments using measured data are performed to confirm the effectiveness of ground-based SAR imaging for terrain observation.","PeriodicalId":331510,"journal":{"name":"2022 3rd China International SAR Symposium (CISS)","volume":"235 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2022 3rd China International SAR Symposium (CISS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CISS57580.2022.9971207","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Synthetic aperture radar (SAR) has been widely applied to terrain observation as an enhanced sensor for all-weather and all-day functions. In this paper, a ground-based millimeter-wave multi-channel interferometric SAR (InSAR) system design and high-resolution imaging algorithm are proposed, which is characterized by small-size, low-cost, and high-precision. Firstly, the frequency-domain imaging algorithm of chirp-scaling is adopted to realize the range cell migration correction (RCMC) and two-dimensional focusing. Then, multi-channel interferometric processing is used to obtain the angle estimation of the imaging scene. Finally, experiments using measured data are performed to confirm the effectiveness of ground-based SAR imaging for terrain observation.