| GPS RAIM定位误差保护限值算法分析 |
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| 引用本文： | 杨传森,徐肖豪,刘瑞华,赵鸿盛.GPS RAIM定位误差保护限值算法分析[J].安徽大学学报(自然科学版),2011(3). |
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| 作者姓名： | 杨传森 徐肖豪 刘瑞华 赵鸿盛 |
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| 作者单位： | 南京航空航天大学民航学院;中国民航大学空管学院;中国民航大学电子信息学院;北京航空航天大学电子信息学院; |
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| 基金项目： | 国家高科技技术研究发展计划基金资助项目(863计划:2006AA12Z313) |
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| 摘 要： | 针对基于最小二乘法的偏差完好性风险方法,采用总体最小二乘法估计准则,将数据矩阵和观测值两者的误差综合考虑,使残差更精确,数据可靠性更高,提高了RAIM算法的可靠性,并给出了RAIM解算模型.结合各个航段的完好性需求进行仿真,分析了不同飞行阶段的PIR性能.结果验证了PIR是更合适的可用性分析方法.
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| 关 键 词： | 总体最小二乘法 最小奇异值 偏差完好性风险 |
Analysis of algorithms for GPS RAIM position integrity risk |
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| YANG Chuan-sen,XU Xiao-hao,LIU Rui-hua,ZHAO Hong-sheng.Analysis of algorithms for GPS RAIM position integrity risk[J].Journal of Anhui University(Natural Sciences),2011(3). |
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| Authors: | YANG Chuan-sen XU Xiao-hao LIU Rui-hua ZHAO Hong-sheng |
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| Institution: | YANG Chuan-sen1,XU Xiao-hao2,LIU Rui-hua3,ZHAO Hong-sheng4 (1.College of Civil Aviation,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China,2.College of Air Traffic Management,Civil Aviation University of China,Tianjin 300300,3.College of Electronic Information Engineering,4.School of Electronic Information Engineering,Beihang University,Beijing 100191,China) |
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| Abstract: | Based on the bias integrity threat approach,this paper proposed the total least squares as a kind of data processing method in recent years.A comparable analysis was made on calculating the usual least squares and total least squares solution of an overdetermined system,which had dealed with uncertainties on the perturbation matrix and the erroneous measurements in the transformation and back-substitution.The objective of this research is to improve RAIM reliability and positioning accuracy,and the solution... |
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| Keywords: | the total least squares minimum singular value bias integrity threat |
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