Preprint Article Version 1 This version is not peer-reviewed

Distributed Orbit Determination for Global Navigation Satellite System with Inter-Satellite Link

Version 1 : Received: 22 January 2019 / Approved: 24 January 2019 / Online: 24 January 2019 (08:01:25 CET)

A peer-reviewed article of this Preprint also exists.

Wen, Y.; Zhu, J.; Gong, Y.; Wang, Q.; He, X. Distributed Orbit Determination for Global Navigation Satellite System with Inter-Satellite Link. Sensors 2019, 19, 1031. Wen, Y.; Zhu, J.; Gong, Y.; Wang, Q.; He, X. Distributed Orbit Determination for Global Navigation Satellite System with Inter-Satellite Link. Sensors 2019, 19, 1031.

Journal reference: Sensors 2019, 19, 1031
DOI: 10.3390/s19051031

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, 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 current paper, the balanced extended Kalman filter algorithm for distributed orbit determination is proposed and compared with whole-constellation centralized extended Kalman filter, iterative cascade extended Kalman filter, and increasing measurement covariance extended Kalman filter. The proposed method demands a lower computation power however yields results with a relatively good accuracy.

Subject Areas

inter-satellite link; whole-constellation centralized extended Kalman filter; distributed orbit determination; iterative cascade extended Kalman filter; increased measurement covariance extended Kalman filter; balanced extended Kalman filter

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