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THE ADVANCEMENTS IN RESEARCH OF FY-3 GNOS II AND INSTRUMENT PERFORMANCE 会议论文
Valencia, SPAIN, JUL 22-27, 2018
作者:  Du, Qifei;  Sun, Yueqiang;  Bai, Weihua;  Wang, Xianyi;  Wang, Dongwei
收藏  |  浏览/下载:24/0  |  提交时间:2019/01/31
GLOBAL NAVIGATION SATELLITE SYSTEM OCCULTATION SOUNDER II (GNOS II) 会议论文
Fort Worth, TX, JUL 23-28, 2017
作者:  Sun, Yueqiang;  Liu, Congliang;  Du, Qifei;  Wang, Xianyi;  Bai, Weihua
收藏  |  浏览/下载:23/0  |  提交时间:2018/05/04
Ionospheric Time-Delay of Satellite Signal Propagation Calculation Based on FDTD Method 会议论文
2016 IEEE CONFERENCE ON ELECTROMAGNETIC FIELD COMPUTATION (CEFC), 2016-01-01
作者:  Wu, Jimin;  Wang, Xinyue;  Xie, Yuwei;  Liu, Jiangfan
收藏  |  浏览/下载:5/0  |  提交时间:2019/12/20
Ionospheric Time-Delay of Satellite Signal Propagation Calculation Based on FDTD Method 会议论文
作者:  Wu, Jimin;  Wang, Xinyue;  Xie, Yuwei;  Liu, Jiangfan
收藏  |  浏览/下载:2/0  |  提交时间:2019/12/05
A NEW KIND OF SIGNAL DELAY ELIMINATING METHOD IN GPS SYSTEM 会议论文
12th International Conference on Fuzzy Logic and Intelligent Technologies in Nuclear Science (FLINS), Roubaix, FRANCE, 2016-08-24
作者:  Deng, Li;  Xu, Kaijun;  Sun, Jingzhou
收藏  |  浏览/下载:3/0  |  提交时间:2019/12/30
Ionosphere Dispersion Effects on Wideband GNSS Signal Performance 会议论文
5th China Satellite Navigation Conference (CSNC), Nanjing, PEOPLES R CHINA, 2014-05-21
作者:  Liu, Ying;  Chen, Yibo
收藏  |  浏览/下载:4/0  |  提交时间:2020/01/06
Adaptive Ionosphere Delay Prediction Algorithm Based on Re-sampling Method 会议论文
PROCEEDINGS OF THE 25TH INTERNATIONAL TECHNICAL MEETING OF THE SATELLITE DIVISION OF THE INSTITUTE OF NAVIGATION (ION GNSS 2012), 2012-01-01
作者:  Liu, Yang;  Zhang, Jun;  Zhu, Yanbo
收藏  |  浏览/下载:5/0  |  提交时间:2020/01/06
Study on spectrograph for ionosphere: A broadband imaging instrument prototype for far-ultraviolet (EI CONFERENCE) 会议论文
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Yu L.; Wang S.-R.; Lin G.-Y.
收藏  |  浏览/下载:20/0  |  提交时间:2013/03/25
Current research on space-based exploration for the ionosphere needs more advanced technologies. Because the spectral signals in the ionosphere distributing basically in the far-ultraviolet waveband are very weak. Usual spectrometer structures and detectors such as CCD can't receive enough information. Based on this principle of atmospheric sounding  the imaging spectrometer prototype for ionosphere detection application was designed to solve the problem. This prototype consists of the telescope and the imaging spectrometer. The simple structure and small number of mirrors can help higher transmission efficiency be achieved and weak signals detection be implemented. The telescope is an off-axis parabolic mirror and the spectrometer is a modified Czerny-Turner spectral imaging system. Modified Czerny-Turner spectrometer contains a spherical mirror  a fixed plane grating and a toroidal mirror. By adjusting the incident angle to the collimating mirror and using toroidal mirror  coma and astigmatism were corrected well. We also optimize distances between the grating to the focusing mirror and the focusing mirror to the image plane to improve disadvantages of traditional Czerny-Turner structure. Designed results demonstrate that aberrations are substantially corrected  and high image quality can be obtained in broad waveband. The photon counting Wedge-Strip-Anode detector with micro-channel planes as the receiving plane is accepted for the instrument prototype. The other photon counting 2-D detector responding well for weak light such as Cross-Delay line detector and MAMA detector can also be used for detection. The calibration and performances testing system is made of a vacuum system  a deuterium lamp  a monochrometer and the instrument prototype. Results obtained from the experiment show that the spectral resolution is 2.4 nm and the spatial resolution is 80 m. The other calibration experiments are running. The technology of the spectrometer prototype is important for the research and applications of ionosphere remote sensing. 2011 SPIE.  
Properties of Spread-F in High and Low Latitude Ionospheres 会议论文
Progress in Electromagnetics Research Symposium (PIERS), Marrakesh, MOROCCO, MAR 20-23, 2011
作者:  Shi, J. K.;  Tao, W.;  Wang, G. J.;  Zherebotsov, G.;  Pirog, O.
收藏  |  浏览/下载:10/0  |  提交时间:2014/12/15
Two-Way satellite time and frequency transfer experiment via IGSO satellite 会议论文
Joint IEEE International Frequency Control Symposium/21st European Frequency and Time Forum, Geneva, SWITZERLAND, MAY 29-JUN 01, 2007
Yang Xuhai; Li Zhigang; Wu Fenglei; Li Xiaohui
收藏  |  浏览/下载:10/0  |  提交时间:2012/11/01


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