{"title":"Two-antenna SAR/ATI with multiple carrier frequencies for radial velocity estimation of moving targets","authors":"Xueyan Kang, Yunhua Zhang, W. Zhai, Jiefang Yang","doi":"10.1109/IRS.2016.7497308","DOIUrl":null,"url":null,"abstract":"Along track interferometry (ATI) is a representative multi-channel synthetic aperture radar (SAR) / ground moving target indication (GMTI) technique. However, the estimated radial velocity of moving target can be ambiguous due to the interferometric phases are almost wrapped by the traditional two-antenna ATI method. In the paper, we propose a two-antenna SAR/ATI method with multiple carrier frequencies for radial velocity ambiguity mitigation of moving targets. Firstly, we establish the model of a two-antenna SAR system and analyze the basic principle of the multi-carrier-frequency ATI (MCF_ATI) approach. Then, we apply the model and the approach to process real SAR data embedded with a simulated moving target, the results demonstrated the effectiveness of the MCF_ATI approach.","PeriodicalId":346680,"journal":{"name":"2016 17th International Radar Symposium (IRS)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2016-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 17th International Radar Symposium (IRS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IRS.2016.7497308","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
Along track interferometry (ATI) is a representative multi-channel synthetic aperture radar (SAR) / ground moving target indication (GMTI) technique. However, the estimated radial velocity of moving target can be ambiguous due to the interferometric phases are almost wrapped by the traditional two-antenna ATI method. In the paper, we propose a two-antenna SAR/ATI method with multiple carrier frequencies for radial velocity ambiguity mitigation of moving targets. Firstly, we establish the model of a two-antenna SAR system and analyze the basic principle of the multi-carrier-frequency ATI (MCF_ATI) approach. Then, we apply the model and the approach to process real SAR data embedded with a simulated moving target, the results demonstrated the effectiveness of the MCF_ATI approach.
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