THE ADVANCEMENTS IN RESEARCH OF FY-3 GNOS II AND INSTRUMENT PERFORMANCE

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
作者部门	空间环境部
会议录名称	IGARSS 2018 - 2018 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
	2018
页码	3347-3350
语种	英语
ISSN号	2153-6996
ISBN号	978-1-5386-7150-4
摘要	Global 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.
关键词	GNOS II Radio Occultation GNSS-R
会议名称	38th IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
会议日期	JUL 22-27, 2018
会议地点	Valencia, SPAIN
收录类别	CPCI
文献类型	会议论文
条目标识符	http://ir.nssc.ac.cn/handle/122/6692
专题	空间环境部
推荐引用方式 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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