| 基于信噪比加权的丹麦法抗差导航模型研究 |
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| 引用本文： | 唐艳梅,王坚,刘超,彭祥国,张学文.基于信噪比加权的丹麦法抗差导航模型研究[J].全球定位系统,2010,35(6):12-16. |
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| 作者姓名： | 唐艳梅 王坚 刘超 彭祥国 张学文 |
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| 作者单位： | [1]中国矿业大学国土环境与灾害监测国家测绘局重点实验室,江苏徐州221116 [2]中国矿业大学环境与测绘学院,江苏徐州221116 [3]中国冶金地质总局第一地质勘察院唐山分院,河北迁安064400 |
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| 基金项目： | 江苏省研究生创新计划资助，国家自然科学基金，教育部留学回国人员科研启动基金资助项目，教育部博士点基金(新教师) |
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| 摘 要： | 在接收机自主完备性算法（RAIM）中粗差探测和剔除最为关键。针对原有算法的不足,提出将基于信噪比加权丹麦法用于接收机自主完备性监测中。利用迭代最小二乘估计对故障卫星进行降权处理,以达到隔离的效果。对算法进行数学建模,描述了算法的流程;利用实测数据进行验证表明：该方法计算速度快且精度也有所提高,具有一定的参考价值。
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| 关 键 词： | GNSS 信噪比 最小二乘 Danish法 抗差估计 |
Research on Danish Robust Navigation Model based on S / N weighted |
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| TANG Yan-mei,WANG Jian,LIU Chao,PENG Xiang-guo,ZHANG Xue-wen.Research on Danish Robust Navigation Model based on S / N weighted[J].Gnss World of China,2010,35(6):12-16. |
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| Authors: | TANG Yan-mei WANG Jian LIU Chao PENG Xiang-guo ZHANG Xue-wen |
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| Institution: | 1.China University of Mining and Technology,Key Laboratory for Land Environment and Disaster Monitoring of SBSM,Xuzhou Jiangsu 221116,China;2.School of Environment and Spatial Informatics,China University of Mining and Technology,Xuzhou Jiangsu 221116,China;3.Tangshan Branch of the First Geological Institute of China Metallurgical Geology Bureau,Qian＇an Hebei 064400,China) |
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| Abstract: | Fault Detection and Fault Exclusion are most critical in Receiver Autonomous Integrity Monitoring（RAIM）.This paper applys a new approach-modified Danish method based on weighted Signal to Noise Ratio to RAIM for improving the original algorithm.In order to achieve the effect of isolation,it uses iterative least-square estimation to deweight the faulty satellite.This paper descrbes the process of the algorithm according to mathematics modeling and then test and verify the algorithm with data.The results show that the speed of calculation and accuracy are improved.It has some reference value. |
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| Keywords: | GNSS SNR least square Danish method robust estimation |
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