| Non-uniform phase filter for Tiangong-2 Interferometric Imaging Radar Altimeter | |
| Dong, Xiao1; Zhang, Yunhua1,2 | |
| Department | 微波遥感部 |
| Source Publication | Journal of Engineering |
| 2019 | |
| Volume | 2019 |
| Issue | 19 |
| Pages | 5610-5613 |
| DOI | 10.1049/joe.2019.0430 |
| Language | 英语 |
| Abstract | The interferometric imaging radar altimeter (InIRA) on-board Chinese Tiangong-2 space laboratory is a Ku-band interferometric radar whose major aim is to measure the wide-swath ocean topography. Unlike traditional interferometric synthetic aperture radar (InSAR) aiming at measuring digital elevation model of land surface, Tiangong-2 InIRA adopts small incidence angles and short baseline to get strong and high coherency reflections from ocean surface. The interferometric phase noise is a notable source of errors which limits the accuracy of the ocean height measurements. Compared with traditional InSAR, the height error of Tiangong-2 InIRA shows different distribution pattern due to the absolutely small but relatively large variation incidence angles. This study gives a filtering method for interferometric phase generated with small incidence angles and short baseline. Non-uniform windows are selected according to the relation between the coherence, imaging geometry, and the height variation. Results on Tiangong-2 InIRA data are analysed by comparing the non-uniform filtering method with traditional multi-looking method. © 2019 Institution of Engineering and Technology. All rights reserved. |
| Conference Name | IET International Radar Conference 2018, IRC 2018 |
| Conference Date | October 17, 2018 - October 19, 2018 |
| Conference Place | Nanjing City, China |
| Indexed By | EI |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://ir.nssc.ac.cn/handle/122/7169 |
| Collection | 微波遥感部 |
| Affiliation | 1.CAS Key Laboratory of Microwave Remote Sensing, National Space Science Center, Chinese Academy of Sciences, No.1 Nanertiao Zhongguancun, Haidian, Beijing, China; 2.University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan, Beijing, China |
| Recommended Citation GB/T 7714 | Dong, Xiao,Zhang, Yunhua. Non-uniform phase filter for Tiangong-2 Interferometric Imaging Radar Altimeter[C],2019:5610-5613. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2019JOE0430.pdf（1218KB） | 会议论文 | 开放获取 | CC BY-NC-SA | Application Full Text | ||
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