Research on integrity fault monitoring performance based on GLS
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摘要: 卫星着陆系统(GLS)作为先进的航空新技术，其主要功能是为终端区精密进近的机载设备提供信号修正增强服务，为实现整个系统高精度离场和精密进近的功能发挥着重要作用. GLS完好性是终端区进近着陆引导应用的重要参数，是可靠性的重要依据，然而目前普通用户只关注导航定位的精度而没有考虑定位结果的可靠性，航空导航领域的机载对定位结果的可靠性要求极高，因此针对完好性故障监测性能展开研究分析，提出了一种接收机钟差调整策略并对其有效性进行仿真验证，并验证了完好性故障排除及未排除两种情况对定位精度及完好性的影响，进而证明完好性故障监测可保障GLS的系统性能、运行能力和安全性能达到预期要求.
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关键词:
- 卫星着陆系统(GLS) /
- 精密进近 /
- 完好性 /
- 接收机钟差 /
- 精度
Abstract: As an advanced aviation new technology, the GBAS landing system (GLS) of satellite navigation plays an important role in providing signal correction and enhancement service for airborne precision approach in terminal area, and in realizing the function of high-precision departure and precision approach of the whole system. GLS integrity is an important parameter of terminal area approach and landing guidance application, which is an important basis for reliability. However, at present, ordinary users only pay attention to the accuracy of navigation and positioning, and do not consider the reliability of positioning results. The airborne of navigation field has high requirements for the reliability of positioning results. Therefore, this paper studies and analyzes the integrity fault monitoring performance. A clock error adjustment strategy is proposed, and the effectiveness of the method is verified by simulation, the influence of interity fault removed and non-removal on positioning accuracy and integrity is given. It is proved that integrity fault monitoring can ensure the system performance, operation ability and safety performance of GLS to meet the expected requirements.-
Key words:
- the GBAS landing system (GLS) /
- precision approach /
- integrity /
- clock error /
- accuracy
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表 1 CAT I类GLS性能要求
精度 95% 水平：16 m；垂直：4 m 完好性 告警门限
完好性风险
告警时间水平：40 m；垂直：10 m
2×10−7/150 s
6 s连续性 连续性风险 8×10−6/15 s 可用性 0.999～0.999 99 
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[1] 中国民用航空局. 2014年民航行业发展统计公报[R/OL]. (2015-07-10) [2021-04-15]. 北京: 中国民用航空局, 2015. http://www.caac.gov.cn/XXGK/XXGK/TJSJ/201511/t20151102_8874.html [2] 李晓宇, 董绪荣, 胡晓粉, 等. 北斗卫星导航系统完好性风险仿真分析[C]//第五届中国卫星导航学术年会, 2014: 6. [3] Minimum operational performance specification for Global Navigation Satellite Ground based augmentation system ground equipment to support category I operations, EUROCAE ED-114[S]. 2003. [4] 陈丹. 基于北斗地基增强系统完好性算法的设计及仿真[D]. 西安: 西安电子科技大学, 2016. [5] XIE G. Optimal on-airport monitoring of the integrity of GPS-based landing system[D]. California: Stanford University, 2004. [6] 苏先礼. GNSS完好性监测体系及辅助性能增强技术研究[D]. 上海: 上海交通大学, 2013. [7] 杨明, 梁绍一, 程松. 地基增强系统完好性参数门限估计方法研究[C]//第六届中国卫星导航学术年会, 2015: 3. [8] 王菁, 田秋丽, 代君. 基于GPS星座的地基增强系统精度分析[J]. 电子测试, 2018(7): 56-57, 91. DOI: 10.3969/j.issn.1000-8519.2018.07.025 [9] 张洪亮. BD/GPS地基增强系统(GBAS)完好性技术研究[D]. 沈阳: 沈阳航空航天大学, 2017. [10] RTCA DO-245A. Minimum aviation system performance standards for local area augmentation system (LAAS) [S]. Washington, USA, 2004. -
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