北斗系统ARAIM可用性评估

doi:10.11947/j.AGCS.2021.20200518

测绘学报 ›› 2021, Vol. 50 ›› Issue (7): 879-890.doi: 10.11947/j.AGCS.2021.20200518

北斗系统ARAIM可用性评估

田云青^1,2,3, 王利^1,2,3, 舒宝^1,2,3, 韩清清^1,2,3, 李龙^1,2,3, 义琛^1,2,3, 许豪^1,2,3

1. 长安大学地质工程与测绘学院, 陕西西安 710054;
2. 地理信息工程国家重点实验室, 陕西西安 710054;
3. 西部矿产资源与地质工程教育部重点实验室, 陕西西安 710054

收稿日期:2020-10-23 修回日期:2021-04-29 发布日期:2021-08-13
通讯作者: 王利 E-mail:wangli@chd.edu.cn
作者简介:田云青(1996-),男,硕士生,研究方向为接收机自主完好性监测算法及应用。E-mail:tianyq1996@163.com
基金资助:
国家自然科学基金（41877289；41731066；41604001）；国家重点研发计划（2018YFC1504805；2018YFC1505102）；地理信息工程国家重点实验室开放研究基金（SKLGIE2017-Z-2-1）

Evaluation of the availability of BDS ARAIM

TIAN Yunqing^1,2,3, WANG Li^1,2,3, SHU Bao^1,2,3, HAN Qingqing^1,2,3, LI Long^1,2,3, YI Chen^1,2,3, XU Hao^1,2,3

1. Collage of Geological Engineering and Geomatics, Chang'an University, Xi'an 710054, China;
2. State Key Laboratory of Geographic Information Engineering, Xi'an 710054, China;
3. Key Laboratory of Western China's Mineral Resources and Geological Engineering, Ministry of Education, Xi'an 710054, China

Received:2020-10-23 Revised:2021-04-29 Published:2021-08-13
Supported by:
The National Natural Science Foundation of China (Nos. 41877289;41731066;41604001);The National Key Research and Development Program of China (Nos. 2018YFC1504805;2018YFC1505102);The State Key Laboratory of Geo-information Engineering (No. SKLGIE2017-Z-2-1)

摘要/Abstract

摘要： 随着北斗三号系统的建成，北斗系统各方面的性能得到了全面提升，大大提高了导航定位的精度和完好性，同时也为增强型接收机自主完好性监测（advanced receiver autonomous integrity monitoring，ARAIM）的发展提供了可能。基于此，本文在全球范围内选取10个均匀分布的MGEX （multi-GNSS experiment）测站一周的观测数据进行ARAIM试验，同时利用这7 d的广播星历进行可用性仿真预测评估北斗系统在亚太地区及全球范围内的ARAIM可用性。为了增加试验的真实性，同时采用航空测试数据进行试验。实测数据试验结果表明：在支持接收PRN1-46号北斗卫星的MGEX站点中，BDS-2/BDS-3 ARAIM可用性最低在95%以上，BDS-3在85%以上；航空数据中，BDS-2/BDS-3、BDS-3 ARAIM可用性均为100%。仿真预测结果表明：在亚太地区，BDS-2/BDS-3 ARAIM地面网络点的平均可用性大于90%和99.5%的覆盖比率分别为100%和96.15%，BDS-3 ARAIM平均可用性大于90%和99.5%的覆盖比率为100%和57.69%。在全球范围内，BDS-2/BDS-3 ARAIM地面网络点的平均可用性大于90%和99.5%的覆盖比率为79.94%和42.82%，BDS-3 ARAIM平均可用性大于90%和99.5%的覆盖比率为56.33%和25.32%。此外，BDS与GPS系统组合能够大幅度提高ARAIM算法的可用性。

关键词: ARAIM, 垂直保护级, LPV-200, BDS, 可用性

Abstract: With the completion of the BDS-3, the performance of the BDS has been comprehensively improved, which greatly improves the accuracy and integrity of navigation and positioning, and provides an opportunity for the development of advanced receiver autonomous integrity monitoring (ARAIM). Based on this, this paper selects one week of observation data from ten evenly distributed multi-GNSS experiment (MGEX) stations around the world for the ARAIM experiment. At the same time, the seven-day broadcast ephemeris is used for availability simulation prediction to evaluate the ARAIM availability of the BDS in the Asia-Pacific region and the world. In order to increase the authenticity of the experiment, the aviation test data is also added for experiment. The experimental results of measured data show that the ARAIM availability of the BDS-2/BDS-3 is more than 95%, and BDS-3 is more than 85% among the MGEX stations that can receive the BeiDou satellite signal with the PRN number 1-46. The ARAIM availability of BDS-2/BSD-3 or BDS-3 is 100% in aviation flight data. The simulation results show that the availability coverage of BDS-2/BDS-3 greater than 90% and 99.5% are 100% and 96.15%, respectively, and the availability coverage of BDS-3 greater than 90% and 99.5% are 100% and 57.69%, respectively in the Asia-Pacific region. Globally, the availability coverage of BDS-2/BDS-3 greater than 90% and 99.5% are 79.94% and 42.82%, respectively, and the availability coverage of BDS-3 greater than 90% and 99.5% are 56.33% and 25.32%, respectively. In addition, the combination of BDS and GPS systems can greatly improve the availability of the ARAIM algorithm.

Key words: ARAIM, vertical protection level, LPV-200, BDS, availability

中图分类号:

P228

田云青, 王利, 舒宝, 韩清清, 李龙, 义琛, 许豪. 北斗系统ARAIM可用性评估[J]. 测绘学报, 2021, 50(7): 879-890.

TIAN Yunqing, WANG Li, SHU Bao, HAN Qingqing, LI Long, YI Chen, XU Hao. Evaluation of the availability of BDS ARAIM[J]. Acta Geodaetica et Cartographica Sinica, 2021, 50(7): 879-890.

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北斗系统ARAIM可用性评估

Evaluation of the availability of BDS ARAIM

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