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Evaluation of Signal-in-Space Continuity and Availability for BeiDou Satellite Considering Failures

Published online by Cambridge University Press:  14 August 2019

Lihong Fan ,
Rui Tu Open the ORCID record for Rui Tu [Opens in a new window] ,
Zengji Zheng ,
Rui Zhang ,
Xiaochun Lu ,
Jinhai Liu ,
Xiaodong Huang  and
Ju Hong
Lihong Fan
Affiliation:
(National Time Service Center, Chinese Academy of Sciences, Shuyuan Road, 710600, Xi'an, China) (Key Laboratory of Time and Frequency Primary Standards Chinese Academy of Sciences, Shuyuan Road, 710600, Xi'an, China)
Rui Tu*
Affiliation:
(National Time Service Center, Chinese Academy of Sciences, Shuyuan Road, 710600, Xi'an, China) (Key Laboratory of Time and Frequency Primary Standards Chinese Academy of Sciences, Shuyuan Road, 710600, Xi'an, China) (University of Chinese Academy of Sciences, Yuquan Road, 100049, Beijing, China)
Zengji Zheng
Affiliation:
(Shaanxi Earthquake Agency, 4 Shuiwen Lane, Xi'an 710068, China)
Rui Zhang
Affiliation:
(National Time Service Center, Chinese Academy of Sciences, Shuyuan Road, 710600, Xi'an, China) (Key Laboratory of Time and Frequency Primary Standards Chinese Academy of Sciences, Shuyuan Road, 710600, Xi'an, China)
Xiaochun Lu
Affiliation:
(National Time Service Center, Chinese Academy of Sciences, Shuyuan Road, 710600, Xi'an, China) (Key Laboratory of Time and Frequency Primary Standards Chinese Academy of Sciences, Shuyuan Road, 710600, Xi'an, China) (University of Chinese Academy of Sciences, Yuquan Road, 100049, Beijing, China)
Jinhai Liu
Affiliation:
(National Time Service Center, Chinese Academy of Sciences, Shuyuan Road, 710600, Xi'an, China) (Key Laboratory of Time and Frequency Primary Standards Chinese Academy of Sciences, Shuyuan Road, 710600, Xi'an, China) (University of Chinese Academy of Sciences, Yuquan Road, 100049, Beijing, China)
Xiaodong Huang
Affiliation:
(National Time Service Center, Chinese Academy of Sciences, Shuyuan Road, 710600, Xi'an, China) (Key Laboratory of Time and Frequency Primary Standards Chinese Academy of Sciences, Shuyuan Road, 710600, Xi'an, China) (University of Chinese Academy of Sciences, Yuquan Road, 100049, Beijing, China)
Ju Hong
Affiliation:
(National Time Service Center, Chinese Academy of Sciences, Shuyuan Road, 710600, Xi'an, China) (Key Laboratory of Time and Frequency Primary Standards Chinese Academy of Sciences, Shuyuan Road, 710600, Xi'an, China) (University of Chinese Academy of Sciences, Yuquan Road, 100049, Beijing, China)
*
(E-mail: turui-2004@126.com)
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Abstract

Signal-in-space (SIS) continuity and availability are important indicators of performance assessment for Global Navigation Satellite Systems (GNSSs). The BeiDou Navigation Satellite System (BDS) Open Service Performance Standard (BDS-OS-PS-1.0) has been released, and the corresponding public performance indicators have been provided, but the actual SIS performance is uncertain to users. SIS continuity and availability are primarily related to unscheduled outages (failures). Therefore, based on the existing failure classification system and actual operation modes, four types of failure modes are first analysed: long-term failure related to satellite service period, maintenance failure related to satellite manoeuvring, short-term failure associated with random repairable anomalies and equivalent failure corresponding to a combination of the above three types of failures. Second, based on the failure classification and selected precise and broadcast ephemerides from 2015–2016, the Mean Time Between Failure (MTBF) and Mean Time To Repair (MTTR) of each failure type are obtained using appropriate detection methods. Finally, using a corresponding assessment model, the SIS continuity and availability of BeiDou are calculated for individual and equivalent failure cases, and these are compared with the provided index in the BDS Open Service Performance Standard.

Keywords

Signal-in-spaceFailure classificationMTBFMTTRContinuityAvailability
Type
Research Article
Information
The Journal of Navigation , Volume 73 , Issue 2 , March 2020 , pp. 312 - 323
Copyright
Copyright © The Royal Institute of Navigation 2019

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