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GNSS-R open-loop difference phase altimetry: Results from a bridge experiment
Bai, Weihua; Sun, Yueqiang; Fu, Yang; Zhu, Guangwu; Du, Qifei; Zhang, Yong; Han, Ying; Cheng, Cheng; Sun, YQ (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, Beijing 100190, Peoples R China.
Department空间环境部
Source PublicationADVANCES IN SPACE RESEARCH
2012
Volume50Issue:8Pages:1150-1157
ISSN0273-1177
Language英语
KeywordGnss-r Altimetry Open-loop Difference Phase Altimetry
AbstractThe paper explores a method to obtain accurate lake surface heights using measurements of the Global Navigation Satellite System (GNSS) carrier phase reflected from the lake surface. The method is referred to as Global Navigation Satellite System-Reflection (GNSSR) open-loop difference phase altimetry method. It consists of two key technologies: one is the open-loop tracking method to track the GNSS-R signals, where the direct GNSS signal's frequency is used as a reference frequency to obtain the carrier phases of the GNSS-R signals; the other key technology is time difference phase altimetry method to invert the lake surface heights using two or more carrier phases of GNSS-R signals received simultaneously. A validation experiment is carried out on the SANYING bridge over GUANTING lake using a GNSS-R receiver developed by the Center for Space Science and Applied Research (CSSAR), processing the data with GNSS-R open-loop difference phase altimetry method. The lake surface height results are consistent with the height results of GPS dual-frequency differential positioning altimetry. The results show that we can achieve centimeter level height in one minute average, by using 11 minutes carrier phase data of three GNSS-R signals received simultaneously. (C) 2011 COSPAR. Published by Elsevier Ltd. All rights reserved.; The paper explores a method to obtain accurate lake surface heights using measurements of the Global Navigation Satellite System (GNSS) carrier phase reflected from the lake surface. The method is referred to as Global Navigation Satellite System-Reflection (GNSSR) open-loop difference phase altimetry method. It consists of two key technologies: one is the open-loop tracking method to track the GNSS-R signals, where the direct GNSS signal's frequency is used as a reference frequency to obtain the carrier phases of the GNSS-R signals; the other key technology is time difference phase altimetry method to invert the lake surface heights using two or more carrier phases of GNSS-R signals received simultaneously. A validation experiment is carried out on the SANYING bridge over GUANTING lake using a GNSS-R receiver developed by the Center for Space Science and Applied Research (CSSAR), processing the data with GNSS-R open-loop difference phase altimetry method. The lake surface height results are consistent with the height results of GPS dual-frequency differential positioning altimetry. The results show that we can achieve centimeter level height in one minute average, by using 11 minutes carrier phase data of three GNSS-R signals received simultaneously. (C) 2011 COSPAR. Published by Elsevier Ltd. All rights reserved.
Indexed BySCI ; EI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/2935
Collection空间环境部
Corresponding AuthorSun, YQ (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Bai, Weihua,Sun, Yueqiang,Fu, Yang,et al. GNSS-R open-loop difference phase altimetry: Results from a bridge experiment[J]. ADVANCES IN SPACE RESEARCH,2012,50(8):1150-1157.
APA Bai, Weihua.,Sun, Yueqiang.,Fu, Yang.,Zhu, Guangwu.,Du, Qifei.,...&Sun, YQ .(2012).GNSS-R open-loop difference phase altimetry: Results from a bridge experiment.ADVANCES IN SPACE RESEARCH,50(8),1150-1157.
MLA Bai, Weihua,et al."GNSS-R open-loop difference phase altimetry: Results from a bridge experiment".ADVANCES IN SPACE RESEARCH 50.8(2012):1150-1157.
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