| 北斗卫星导航系统误差分析与评估 |
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| 引用本文： | 翟显,刘瑞华,王剑,朱一龙.北斗卫星导航系统误差分析与评估[J].现代导航,2018,9(1):10-17. |
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| 作者姓名： | 翟显 刘瑞华 王剑 朱一龙 |
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| 作者单位： | 中国民航大学,天津 300300 |
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| 基金项目： | 民航安全能力建设项目“北斗机载设备技术标准规定与应用研究”(AADSA0007)；国家重点研发计划“广域航空安全监控技术及应用”项目“星基定位监事与机载设备适航技术”子课题(2016YFB0502402) |
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| 摘 要： | 北斗卫星导航系统误差主要包括与卫星相关的误差，信号传输过程中的误差和用户段的误差。这些因素可以造成卫星导航系统在使用的过程中无法及时对定位准确性进行有效警告，告警限值出现明显误差，甚至造成定位结果无法使用和完好性故障。按照空间信号接口规范， 利用广播星历，精密星历，原始电文和伪距计算出了卫星轨道误差，卫星钟差，电离层误差，对流层误差以及用户等效测距误差(UERE)。使用 Propak6 接收机接收机场附近的实测数据，对北斗导航系统的各项误差进行统计分析，为北斗导航系统应用到民航提供了重要依据。
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| 关 键 词： | 北斗卫星导航系统 星历误差 电离层 对流层 UERE |
Error Analysis and Evaluation of Beidou Satellite Navigation System |
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| Authors: | ZHAI Xian LIU Ruihu WANG Jian ZHU Yilong |
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| Abstract: | Beidou satellite navigation system error mainly include the error related to satellite, the error in signal transmission process and the error of user segment, which can cause the satellite navigation system cannot effectively warn of the positioning accuracy timely, alert limit appear obvious error, and even the positioning results cannot be used and integrity failure. According to the specification of the space signal interface, the analytical expression of satellite orbit error, satellite clock error, ionospheric error, troposphere error and user equivalent range error are derived by using broadcast ephemeris, precise ephemeris, original navigation message and pseudo-range. Then, based on the measured data near the airport received by Propak6 receiver, the errors of the Beidou navigation system are statistically analyzed, which can provide an important reference for Beidou navigation system applied to the field of civil aviation. |
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