Journal ArticleDOI
Globalization highlight: orbit determination using BeiDou inter-satellite ranging measurements
TLDR
The performance of orbit determination has been increased about 37–76% for different satellites in orbit-only signal-in-space range error (orbit-only SISRE).Abstract:
The BeiDou Navigation Satellite System is expected to provide a global positioning and navigation service by 2020. To achieve this goal, the new-generation navigation satellites that have been launched since March 2015 are equipped with inter-satellite links (ISLs), with the objective of testing new navigation signals and the ISLs themselves. Using these new-generation navigation satellites and several ground facilities in China, a combined orbit determination experiment was carried out during August 2016. The orbit mechanical model, orbit determination method, and accuracy evaluation method used in this experiment are presented here. The accuracy of the combined orbit determination method is evaluated, and the performance-related improvements resulting from the ISLs are analyzed. The performance of orbit determination has been increased about 37–76% for different satellites in orbit-only signal-in-space range error (orbit-only SISRE).read more
Citations
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Journal ArticleDOI
Precise orbit and clock determination for BeiDou-3 experimental satellites with yaw attitude analysis
TL;DR: In this paper, the authors used 15 stations, mainly in the Asia-Pacific region, to determine orbits and clock for both the BeiDou-3e and the regional BeiDou2 satellites using the Extend CODE (Center for Orbit Determination in Europe) Orbit Model (ECOM).
Journal ArticleDOI
Assessment of BDS-3 global positioning service: ephemeris, SPP, PPP, RTK, and new signal
TL;DR: The new B1C signal does not bring convincing improvement to PPP and RTK positioning accuracies in this study, due to the limited number of available B 1C new signals at this time.
Journal ArticleDOI
Performance of the BDS3 experimental satellite passive hydrogen maser
Ziqian Wu,Shanshi Zhou,Xiaogong Hu,Li Liu,Tao Shuai,Yonghui Xie,Chengpan Tang,Junyang Pan,LingFeng Zhu,Zhiqiao Chang +9 more
TL;DR: In this article, the frequency stability, clock prediction accuracy and clock rate variation characteristics of the third generation of Beidou Satellite Navigation System (BDS3) experimental satellites were analyzed using the high-precision clock values obtained by satellite-ground and inter-satellite measurement and communication systems.
Journal ArticleDOI
Precise orbit determination for BDS-3 satellites using satellite-ground and inter-satellite link observations
TL;DR: In this article, the authors presented the precise orbit determination (POD) for BDS-3 satellites using both L-band satellite-ground and Ka-band inter-satellite link (ISL) observations.
Journal ArticleDOI
The contribution of intersatellite links to BDS-3 orbit determination: Model refinement and comparisons
TL;DR: In this article, a modified modeling aspect concerning an intersatellite link (ISL) hardware delay estimation was presented and validated for the Chinese BeiDou satellite system (BDS-3) by using calibrated phase center offsets (PCOs) of the ISL terminal to help improve the orbit accuracy.
References
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Book
Statistical Orbit Determination
TL;DR: In this paper, the authors present a review of matrix concepts for near-circular orbits and propose a solution of the linearized Equations of Motion (LEM) problem.
Journal ArticleDOI
Inter-satellite ranging and inter-satellite communication links for enhancing GNSS satellite broadcast navigation data
TL;DR: The results of the GNSS+ Project as well as the improvements proposed in the frame of the ADVISE Project are described, which have been possible to low very visibly the payload maximum RF power, and to keep the orbit and clock estimation accuracy, which was already on the few cm level.
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S.C. Fisher,K. Ghassemi +1 more
TL;DR: Performance improvements in GPS signal power, accuracy, and service to civilian users are described and, combined with the flexibility of the GPS IIF system, they allow for upgrading the system to even greater capability.
Book ChapterDOI
Orbit Determination Concepts
TL;DR: In this paper, the authors present a treatment of the fundamentals of satellite orbit determination and its evolution over the past four decades, covering the basics of satellite motion relative to the center of mass of the Earth in a specified coordinate system.
Journal ArticleDOI
Improvement of orbit determination accuracy for Beidou Navigation Satellite System with Two-way Satellite Time Frequency Transfer
Chengpan Tang,Xiaogong Hu,Shanshi Zhou,Rui Guo,Feng He,Li Liu,LingFeng Zhu,Xiaojie Li,Shan Wu,Gang Zhao,Yang Yu,Yueling Cao +11 more
TL;DR: In order to improve the orbit determination accuracy for BDS, a new orbit determination strategy is proposed, in which the satellite clock measurements from TWSTFT are fixed as known values, and only the orbits of the satellites are solved.