| ECHO SIGNAL QUALITY ANALYSIS DURING HY-2A RADAR ALTIMETER CALIBRATION CAMPAIGN USING RECONSTRUCTIVE TRANSPONDER | |
| Wan, Junzhi; Guo, Wei; Zhao, Fei; Wang, Caiyun; Zhao, F (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, Natl Space Sci Ctr, Key Lab Microwave & Remote Sensing Technol, Beijing 100190, Peoples R China. | |
| Department | 微波遥感部 |
| Source Publication | 2015 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) |
| 2015 | |
| Pages | 3652-3654 |
| Language | 英语 |
| ISSN | 2153-6996 |
| ISBN | 978-1-4799-7929-5 |
| Abstract | A reconstructive transponder has been utilized for the in orbit calibration campaign of the HY-2A radar altimeter since March, 2012. The precision of final calibration result is influenced by echo signal's quality in the HY-2A altimeter's range window. Echo signal dwell time is analyzed considering its influence on signal quality and its fluctuation. Comparing with the length of the HY-2A altimeter's range window, the radial component of orbit prediction error is large. The tracking mechanism of the reconstructive transponder utilizes some incoming signal samples without sending echo signals to establish stable tracking. Large radial orbit error and tracking mechanism of the reconstructive transponder are two main factors that limit the precision of the final range calibration result. Finally, approaches for increasing echo signal dwell time are proposed. |
| Keyword | Altimeter Reconstructive Transponder Dwell Time Signal Quality |
| Conference Name | IEEE International Geoscience and Remote Sensing Symposium (IGARSS) |
| Conference Date | JUL 26-31, 2015 |
| Conference Place | Milan, ITALY |
| Indexed By | EI ; CPCI |
| Document Type | 会议论文 |
| Identifier | http://ir.nssc.ac.cn/handle/122/5366 |
| Collection | 微波遥感部 |
| Corresponding Author | Zhao, F (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, Natl Space Sci Ctr, Key Lab Microwave & Remote Sensing Technol, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Wan, Junzhi,Guo, Wei,Zhao, Fei,et al. ECHO SIGNAL QUALITY ANALYSIS DURING HY-2A RADAR ALTIMETER CALIBRATION CAMPAIGN USING RECONSTRUCTIVE TRANSPONDER[C],2015:3652-3654. |
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| File Name/Size | DocType | Version | Access | License | ||
| 201507426357.pdf（1140KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Download | ||
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