上海交通大学学报(英文版) ›› 2014, Vol. 19 ›› Issue (3): 313-324.doi: 10.1007/s12204-014-1505-7

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Receiver Autonomous Integrity Monitoring Availability and Fault Detection Capability Comparison Between BeiDou and GPS

SU Xian-li1,2 (苏先礼), ZHAN Xing-qun1* (战兴群), NIU Man-cang1 (牛满仓), ZHANG Yan-hua1 (张炎华)   

  1. (1. School of Aeronautics and Astronautics, Shanghai Jiaotong University, Shanghai 200240, China; 2. The Staff Institute of Technology, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China)
  • 出版日期:2014-06-30 发布日期:2014-07-15
  • 通讯作者: ZHAN Xing-qun(战兴群) E-mail:xqzhan@sjtu.edu.cn

Receiver Autonomous Integrity Monitoring Availability and Fault Detection Capability Comparison Between BeiDou and GPS

SU Xian-li1,2 (苏先礼), ZHAN Xing-qun1* (战兴群), NIU Man-cang1 (牛满仓), ZHANG Yan-hua1 (张炎华)   

  1. (1. School of Aeronautics and Astronautics, Shanghai Jiaotong University, Shanghai 200240, China; 2. The Staff Institute of Technology, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China)
  • Online:2014-06-30 Published:2014-07-15
  • Contact: ZHAN Xing-qun(战兴群) E-mail:xqzhan@sjtu.edu.cn

摘要: This paper used the statistical methods of quality control to assess receiver autonomous integrity monitoring (RAIM) availability and fault detection (FD) capability of BeiDou14 (Phase II with 14 satellites), BeiDou (Phase III with 35 satellites) and GPS (with 31 satellites) for the first time. The three constellations are simulated and their RAIM performances are quantified by the global, Asia-Pacific region and temporal variations respectively. RAIM availability must be determined before RAIM detection. It is proposed that RAIM availability performances from satellites and constellation geometry configuration are evaluated by the number of visible satellites (NVS, NVS > 5) and geometric dilution of precision (GDOP, GDOP < 6) together. The minimal detectable bias (MDB) and minimal detectable effect (MDE) are considered as a measure of the minimum FD capability of RAIM in the measurement level and navigation position level respectively. The analyses of simulation results testify that the average global RAIM performances for BeiDou are better than that for GPS except global RAIM holes proportion. Moreover, the Asia-Pacific RAIM performances for BeiDou are much better than that for GPS in all indexes. RAIM availability from constellation geometry configuration and RAIM minimum FD capability for BeiDou14 are better than that for GPS in Asia-Pacific region in all cases, but the BeiDou14 RAIM availability from satellites are worse than GPS’s. The methods and conclusions can be used for RAIM prediction and real-time assessment of all kinds of Global Navigation Satellite Systems (GNSS) constellation.

关键词: Global Navigation Satellite Systems (GNSS), BeiDou Navigation Satellite System (BDS), GPS, receiver autonomous integrity monitoring (RAIM), availability, fault detection (FD), quality control

Abstract: This paper used the statistical methods of quality control to assess receiver autonomous integrity monitoring (RAIM) availability and fault detection (FD) capability of BeiDou14 (Phase II with 14 satellites), BeiDou (Phase III with 35 satellites) and GPS (with 31 satellites) for the first time. The three constellations are simulated and their RAIM performances are quantified by the global, Asia-Pacific region and temporal variations respectively. RAIM availability must be determined before RAIM detection. It is proposed that RAIM availability performances from satellites and constellation geometry configuration are evaluated by the number of visible satellites (NVS, NVS > 5) and geometric dilution of precision (GDOP, GDOP < 6) together. The minimal detectable bias (MDB) and minimal detectable effect (MDE) are considered as a measure of the minimum FD capability of RAIM in the measurement level and navigation position level respectively. The analyses of simulation results testify that the average global RAIM performances for BeiDou are better than that for GPS except global RAIM holes proportion. Moreover, the Asia-Pacific RAIM performances for BeiDou are much better than that for GPS in all indexes. RAIM availability from constellation geometry configuration and RAIM minimum FD capability for BeiDou14 are better than that for GPS in Asia-Pacific region in all cases, but the BeiDou14 RAIM availability from satellites are worse than GPS’s. The methods and conclusions can be used for RAIM prediction and real-time assessment of all kinds of Global Navigation Satellite Systems (GNSS) constellation.

Key words: Global Navigation Satellite Systems (GNSS), BeiDou Navigation Satellite System (BDS), GPS, receiver autonomous integrity monitoring (RAIM), availability, fault detection (FD), quality control

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