Paper Info
Title
Design And Performance Analysis Of Bds-3 Integrity Concept
Abstract
Compared to the BeiDou regional navigation satellite system (BDS-2), the BeiDou global navigation satellite system (BDS-3) carried out a brand new integrity concept design and construction work, which defines and achieves the integrity functions for major civil open services (OS) signals such as B1C, B2a, and B1I. The integrity definition and calculation method of BDS-3 are introduced. The fault tree model for satellite signal-in-space (SIS) is used, to decompose and obtain the integrity risk bottom events. In response to the weakness in the space and ground segments of the system, a variety of integrity monitoring measures have been taken. On this basis, the design values for the new B1C/B2a signal and the original B1I signal are proposed, which are 0.9 x 10(-5) and 0.8 x 10(-5), respectively. The hybrid alarming mechanism of BDS-3, which has both the ground alarming approach and the satellite alarming approach, is explained. At last, an integrity risk analysis and verification work were carried out using the operating data of the system in 2019. The results show that the actual operation of the system is consistent with the conceptual design, which satisfies the integrity performance promised by BDS-3 in the ICAO SAPRs.
Year
DOI
Venue
2021
10.3390/rs13152860
REMOTE SENSING
Keywords
DocType
Volume
BDS, BeiDou, integrity, risk tree, FMEA, satellite service failure, constellation service failure
Journal
13
Issue
Citations 
PageRank 
15
0
0.34
References 
Authors
0
9
Name
Order
Citations
PageRank
Cheng Liu101.01
Yueling Cao202.37
Gong Zhang300.34
Weiguang Gao401.35
Ying Chen500.34
Jun Lu600.68
Chonghua Liu700.34
Haitao Zhao800.34
Fang Li900.34