| 多系统卫星导航接收机自主完好性监测 |
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| 作者姓名： | 代长勇 常青 陈媛 |
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| 作者单位： | 北京航空航天大学电子信息工程学院; |
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| 基金项目： | 国家863计划资助项目(2007AA12Z336,2009AA12Z313); 国家自然科学基金资助项目(60872062); 航天科技创新基金资助项目(2009-06) |
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| 摘 要： | 针对多系统卫星导航接收机自主完好性监测的现实需要,在传统的奇偶矢量法的基础上提出一种新的基于加权奇偶矢量法的自主完好性监测算法。加权奇偶矢量法克服了不同系统间由于测距均方根误差不同造成的RAIM算法性能下降,算法综合考虑各系统间测距均方根误差不同的实际情况,对测距误差进行归一化处理,大大提高了多系统卫星导航接收机RAIM算法对测距均方根误差较小卫星的敏感度。经过Monte-Carlo仿真证明,算法能有效抑制系统虚警和漏检情况的发生。
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| 关 键 词： | 多系统 自主完好性监测 加权奇偶矢量 均方根误差 |
Multi-System Satellite Navigation Receiver Autonomous Integrity Monitoring |
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| Authors: | Dai Changyong Chang Qing Chen Yuan |
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| Institution: | Dai Changyong,Chang Qing,Chen Yuan |
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| Abstract: | Considering the needs of multi-system satellite navigation receiver's autonomous integrity monitoring(RAIM),a new RAIM algorithm based on the weighting parity vector derived from the parity vector is presented.The new algorithm avoids the disadvantage of parity vector caused by the difference of ranging accuracy between different systems,makes full use of the difference to normalize the ranging errors,and improves the sensitivity to the satellite with smaller ranging mean-root-square error greatly.The Monte... |
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| Keywords: | Multi-system RAIM Weighting parity vector Mean-root-square error |
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