Yanyang Liu, Lei Cui, Zhiming Liu, Haitao Wang, Bingliang Zhang, Tao Li
{"title":"InSAR处理中一种新的绝对干涉相位确定算法","authors":"Yanyang Liu, Lei Cui, Zhiming Liu, Haitao Wang, Bingliang Zhang, Tao Li","doi":"10.1109/CISS57580.2022.9971457","DOIUrl":null,"url":null,"abstract":"For the purpose of global mapping, absolute interferometric phase (AIP) determination without ground control points is one of the keytechniques in spaceborne interferometric synthetic aperture radar (InSAR) processing. In this paper, a novel AIP determination method is proposed based on the fusion of datum acquired by the ascending and descending orbits. Firstly, the influence of AIP error on the InSAR positioning is analyzed. The horizontal shift directions introduced by the AIP bias for ascending- and descending orbit data are different. Then, the AIP can be determined by minimization of the height difference between ascending- and descending-orbit data. The effectiveness of the proposed method is validated by the experiment with TanDEM-X SAR data.","PeriodicalId":331510,"journal":{"name":"2022 3rd China International SAR Symposium (CISS)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A Novel Absolute Interferometric Phase Determination Algorithm for InSAR Processing\",\"authors\":\"Yanyang Liu, Lei Cui, Zhiming Liu, Haitao Wang, Bingliang Zhang, Tao Li\",\"doi\":\"10.1109/CISS57580.2022.9971457\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"For the purpose of global mapping, absolute interferometric phase (AIP) determination without ground control points is one of the keytechniques in spaceborne interferometric synthetic aperture radar (InSAR) processing. In this paper, a novel AIP determination method is proposed based on the fusion of datum acquired by the ascending and descending orbits. Firstly, the influence of AIP error on the InSAR positioning is analyzed. The horizontal shift directions introduced by the AIP bias for ascending- and descending orbit data are different. Then, the AIP can be determined by minimization of the height difference between ascending- and descending-orbit data. The effectiveness of the proposed method is validated by the experiment with TanDEM-X SAR data.\",\"PeriodicalId\":331510,\"journal\":{\"name\":\"2022 3rd China International SAR Symposium (CISS)\",\"volume\":\"54 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/CISS57580.2022.9971457\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2022 3rd China International SAR Symposium (CISS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CISS57580.2022.9971457","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A Novel Absolute Interferometric Phase Determination Algorithm for InSAR Processing
For the purpose of global mapping, absolute interferometric phase (AIP) determination without ground control points is one of the keytechniques in spaceborne interferometric synthetic aperture radar (InSAR) processing. In this paper, a novel AIP determination method is proposed based on the fusion of datum acquired by the ascending and descending orbits. Firstly, the influence of AIP error on the InSAR positioning is analyzed. The horizontal shift directions introduced by the AIP bias for ascending- and descending orbit data are different. Then, the AIP can be determined by minimization of the height difference between ascending- and descending-orbit data. The effectiveness of the proposed method is validated by the experiment with TanDEM-X SAR data.