NSSC OpenIR  > 空间环境部
THE ADVANCEMENTS IN RESEARCH OF FY-3 GNOS II AND INSTRUMENT PERFORMANCE
Du, Qifei; Sun, Yueqiang; Bai, Weihua; Wang, Xianyi; Wang, Dongwei; Meng, Xiangguang; Cai, Yuerong; Xia, Junming; Wu, Chunjun; Liu, Congliang; Li, Wei; Liu, Cheng
Department空间环境部
Source PublicationIGARSS 2018 - 2018 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
2018
Pages3347-3350
Language英语
ISSN2153-6996
ISBN978-1-5386-7150-4
AbstractGlobal Navigation Satellite System (GNSS) Radio Occultation measurements can remote sensing Earth's neutral atmosphere and ionosphere. Meanwhile, another GNSS remote sensing technique named GNSS Reflectometry (GNSS-R) has been developed rapidly, which can retrieve sea surface wind speed. The GNSS Occultation Sounder (GNOS) II instrument has been designed to integrate these two GNSS remote sensing techniques in one payload of the third batch FengYun-3 (FY-3) satellites. This paper presents the advancements in research of GNOS II and instrument performance. The qualified module of GNOS II has been manufactured by National Space Science Center (NSSC), Chinese Academy of Sciences. We show that the phase center variety is low enough for the new designed precise orbit determination (POD) antenna to increase the accuracy of precise orbit determination. A wide coverage atmosphere occultation antenna and a 65nm technics ASIC are used in the new generation GNOS instrument. As an important improvement, the GNOS II can generate Delay Doppler Maps (DDMs) of GNSS signals scattered from the ocean surface. The result of test shows that the GNOS II instrument has high performance in precision of code, carrier phase and real-time navigation.
KeywordGNOS II Radio Occultation GNSS-R
Conference Name38th IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Conference DateJUL 22-27, 2018
Conference PlaceValencia, SPAIN
Indexed ByCPCI
Document Type会议论文
Identifierhttp://ir.nssc.ac.cn/handle/122/6692
Collection空间环境部
Recommended Citation
GB/T 7714
Du, Qifei,Sun, Yueqiang,Bai, Weihua,et al. THE ADVANCEMENTS IN RESEARCH OF FY-3 GNOS II AND INSTRUMENT PERFORMANCE[C],2018:3347-3350.
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