| 基于向量相关距离的新型RAIM算法 |
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| 引用本文： | 秘金钟,谷守周,方书山.基于向量相关距离的新型RAIM算法[J].中国科学:物理学 力学 天文学,2010(5):638-643. |
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| 作者姓名： | 秘金钟 谷守周 方书山 |
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| 作者单位： | 中国测绘科学研究院;武汉大学测绘学院; |
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| 基金项目： | 国家高技术研究发展计划资助项目(编号:2007AA12Z313,2007AA12Z316) |
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| 摘 要： | 用户自主式完备性监测RAIM是卫星导航系统的重要组成部分,是指根据用户接收机的多余观测值监测用户定位结果的完备性.在现有的RAIM算法中,比较普遍的是利用伪距多余观测量实现粗差卫星的探测和识别的最小二乘残差法和Parity相关系数法.在旧有的以相关分析RAIM算法基础上,进行矩阵变换得到设计矩阵,重点考察设计矩阵向量间的相关系数和相关距离,作为粗差探测和识别的研究对象.通过向量相关距离时间序列,可以区分单个粗差和多个粗差的粗差集.本文提出的基于相关距离的RAIM算法,克服了现有RAIM算法中由于相关系数自身相关的缺陷而使得粗差探测失真的技术问题,并且具有利用矩阵变换计算相似距离,方法更加简便的优点,从而使得粗差识别更加清晰,识别多个粗差.
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| 关 键 词： | RAIM 相关距离 相关系数 完备性 |
A new RAIM method based on vector correlation distance |
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| BEI JinZhong,GU ShouZhou & FANG ShuShan China Academy of Surveying , Mapping,Beijing ,China, School of Geodesy , Geomatics,Wuhan University,Wuhan.A new RAIM method based on vector correlation distance[J].Scientia Sinica Pysica,Mechanica & Astronomica,2010(5):638-643. |
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| Authors: | BEI JinZhong GU ShouZhou & FANG ShuShan China Academy of Surveying Mapping Beijing China School of Geodesy Geomatics Wuhan University Wuhan |
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| Institution: | BEI JinZhong1,2*,GU ShouZhou1 & FANG ShuShan1 1 China Academy of Surveying , Mapping,Beijing 100830,China,2 School of Geodesy , Geomatics,Wuhan University,Wuhan 430079 |
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| Abstract: | As an important integrant of satellites navigation augment system, receiver autonomous integrity monitoring refers to monitor the integrity of user positioning result based on redundant observations. Among the existing methods of RAIM, it is popular to achieve detection and recognition of gross errors by using pseudo-range redundant observations. Presently, the common methods are least squares residual method and parity correlation coefficient method. Based on existing RAIM method of correlative analysis, d... |
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| Keywords: | RAIM correlative distance correlative coefficient integrity |
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