| The concept of a multibeam delay/Doppler radar altimeter | |
| Yang Shuangbao; Liu Heguang; Xu Ke; Xu Xiyu; Yang, SB (reprint author), Chinese Acad Sci, Key Lab Microwave Remote Sensing, Ctr Space Sci & Appl Res, 1 Nanertiao, Beijing 100190, Peoples R China. | |
| Department | 微波遥感部 |
| Source Publication | SENSORS, SYSTEMS, AND NEXT-GENERATION SATELLITES XV |
| 2011 | |
| Pages | 817627 |
| Language | 英语 |
| ISSN | 0277-786X |
| ISBN | 978-0-81948-803-9 |
| Abstract | Radar altimeter can map the global geoid with high precision. This paper presents a new concept of mutibeam delay/Doppler radar altimeter which combines a liner array of nadir receivers and a nadir transmitter. The delay/Doppler technology is applied in the along track, and the array signal processing technology in the cross track. The key innovation in this concept is that fan-beams form in both along track and across track, and range correction is applied in across track as in along track, so that it could provide high precision with wide swath. But the 3D-matrix store and processing of the raw data from receivers are much more complicated than a conventional radar altimeter and a delay/Doppler radar altimeter. It could provide height profile with high precision for left scene and right scene, respectively, and leave small footprints at far range as at near range. It could also lead to uniform cross section in each resolution cell.; Radar altimeter can map the global geoid with high precision. This paper presents a new concept of mutibeam delay/Doppler radar altimeter which combines a liner array of nadir receivers and a nadir transmitter. The delay/Doppler technology is applied in the along track, and the array signal processing technology in the cross track. The key innovation in this concept is that fan-beams form in both along track and across track, and range correction is applied in across track as in along track, so that it could provide high precision with wide swath. But the 3D-matrix store and processing of the raw data from receivers are much more complicated than a conventional radar altimeter and a delay/Doppler radar altimeter. It could provide height profile with high precision for left scene and right scene, respectively, and leave small footprints at far range as at near range. It could also lead to uniform cross section in each resolution cell. |
| Keyword | Radar Altimeter Synthetic Aperture Beamforming Delay Compensation |
| Conference Name | Conference on Sensors, Systems, and Next-Generation Satellites XV |
| Conference Date | SEP 19-22, 2011 |
| Conference Place | Prague, CZECH REPUBLIC |
| Indexed By | EI ; CPCI |
| Document Type | 会议论文 |
| Identifier | http://ir.nssc.ac.cn/handle/122/3387 |
| Collection | 微波遥感部 |
| Corresponding Author | Yang, SB (reprint author), Chinese Acad Sci, Key Lab Microwave Remote Sensing, Ctr Space Sci & Appl Res, 1 Nanertiao, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Yang Shuangbao,Liu Heguang,Xu Ke,et al. The concept of a multibeam delay/Doppler radar altimeter[C]. BELLINGHAM:SPIE-INT SOC OPTICAL ENGINEERING,2011:817627. |
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| File Name/Size | DocType | Version | Access | License | ||
| 2011817627.pdf（319KB） | 开放获取 | CC BY-NC-SA | View Download | |||
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