Author:
Wen Yuanlan,Zhu Jun,Gong Youxing,Wang Qian,He Xiufeng
Abstract
To keep the global navigation satellite system functional during extreme conditions, it is a trend to employ autonomous navigation technology with inter-satellite link. As in the newly built BeiDou system (BDS-3) equipped with Ka-band inter-satellite links, every individual satellite has the ability of communicating and measuring distances among each other. The system also has less dependence on the ground stations and improved navigation performance. Because of the huge amount of measurement data, the centralized data processing algorithm for orbit determination is suggested to be replaced by a distributed one in which each satellite in the constellation is required to finish a partial computation task. In the present paper, the balanced extended Kalman filter algorithm for distributed orbit determination is proposed and compared with the whole-constellation centralized extended Kalman filter, the iterative cascade extended Kalman filter, and the increasing measurement covariance extended Kalman filter. The proposed method demands a lower computation power; however, it yields results with a relatively good accuracy.
Subject
Electrical and Electronic Engineering,Biochemistry,Instrumentation,Atomic and Molecular Physics, and Optics,Analytical Chemistry
Reference31 articles.
1. Understanding GPS: Principles and Application;Kaplan,2006
2. GNSS—Global Navigation Satellite Systems: GPS, GLONASS, Galileo, and More;Hofmannwellenhof,2008
3. Research on Orbit Determination and Time Synchronizing Method of Navigation Satellite Based on Crosslinks;Zhu,2011
4. Long-term semi-autonomous orbit determination supported by a few ground stations for navigation constellation;Hang;Sci. China Phys. Mech. Astron.,2011
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