Non-uniform phase filter for Tiangong-2 Interferometric Imaging Radar Altimeter
文献类型：会议论文
| 作者 | Dong, Xiao2; Zhang, Yunhua1,2 |
| 出版日期 | 2019 |
| 会议日期 | October 17, 2018 - October 19, 2018 |
| 会议地点 | Nanjing City, China |
| 卷号 | 2019 |
| 期号 | 19 |
| DOI | 10.1049/joe.2019.0430 |
| 页码 | 5610-5613 |
| 英文摘要 | 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. |
| 会议录 | Journal of Engineering
 |
| 语种 | 英语 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/7169]  |
| 专题 | 国家空间科学中心_微波遥感部 |
| 作者单位 | 1.University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan, Beijing, China 2.CAS Key Laboratory of Microwave Remote Sensing, National Space Science Center, Chinese Academy of Sciences, No.1 Nanertiao Zhongguancun, Haidian, Beijing, China; |
| 推荐引用方式 GB/T 7714 | Dong, Xiao,Zhang, Yunhua. Non-uniform phase filter for Tiangong-2 Interferometric Imaging Radar Altimeter[C]. 见:. Nanjing City, China. October 17, 2018 - October 19, 2018. |
入库方式： OAI收割
来源：国家空间科学中心
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