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Echo Signal Quality Analysis During HY-2A Radar Altimeter Calibration Campaign Using Reconstructive Transponder
Wan, Junzhi; Guo, Wei; Zhao, Fei; Wang, Caiyun; Liu, Peng; Lin, Mingsen; Peng, Hailong; Xu, Chuan; Zhao, F (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, CAS Key Lab Microwave Remote Sensing, Beijing 100190, Peoples R China.
Department微波遥感部
Source PublicationIEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
2016
Volume9Issue:6Pages:2702-2708
ISSN1939-1404
Language英语
KeywordAltimeter Dwell Time Reconstructive Transponder Signal Quality
AbstractA 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. As an indicator of the signal's quality, echo signal dwell time is analyzed considering its influence on signal quality and its uncertainty. In HY-2A altimeter calibration, the echo signal dwell time is determined by the radial orbit prediction uncertainty and the real-time signal processing mechanism of the reconstructive transponder. The real-time signal processing mechanism of the reconstructive transponder utilizes some incoming signal samples without sending echo signals before transmitting. Comparing with the length of the HY-2A altimeter's range window, the radial orbit prediction uncertainty is large. Large radial orbit prediction uncertainty and signal processing mechanism of the reconstructive transponder are two main factors that limit the echo signal dwell time in HY-2A altimeter calibration. Finally, approaches for increasing echo signal dwell time are briefly proposed.
Indexed BySCI ; EI ; CPCI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/5610
Collection微波遥感部
Corresponding AuthorZhao, F (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, CAS Key Lab Microwave Remote Sensing, 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[J]. IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,2016,9(6):2702-2708.
APA Wan, Junzhi.,Guo, Wei.,Zhao, Fei.,Wang, Caiyun.,Liu, Peng.,...&Zhao, F .(2016).Echo Signal Quality Analysis During HY-2A Radar Altimeter Calibration Campaign Using Reconstructive Transponder.IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,9(6),2702-2708.
MLA Wan, Junzhi,et al."Echo Signal Quality Analysis During HY-2A Radar Altimeter Calibration Campaign Using Reconstructive Transponder".IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING 9.6(2016):2702-2708.
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2016962702-2708.pdf(115KB)期刊论文作者接受稿开放获取CC BY-NC-SAApplication Full Text
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