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附加Doppler预报坐标约束的模糊度 动态解算新方法

柴艳菊 欧吉坤 袁运斌 刘根友

柴艳菊, 欧吉坤, 袁运斌, 等 . 附加Doppler预报坐标约束的模糊度 动态解算新方法[J]. 北京航空航天大学学报, 2008, 34(01): 88-91.
引用本文: 柴艳菊, 欧吉坤, 袁运斌, 等 . 附加Doppler预报坐标约束的模糊度 动态解算新方法[J]. 北京航空航天大学学报, 2008, 34(01): 88-91.
Chai Yanju, Ou Jikun, Yuan Yunbin, et al. On-the-fly ambiguity resolution by restricting coordinates predicted by Doppler[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(01): 88-91. (in Chinese)
Citation: Chai Yanju, Ou Jikun, Yuan Yunbin, et al. On-the-fly ambiguity resolution by restricting coordinates predicted by Doppler[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(01): 88-91. (in Chinese)

附加Doppler预报坐标约束的模糊度 动态解算新方法

基金项目: 山东省基础地理信息与数字化技术重点实验室开放基金资助项目(SD060811);国家自然科学基金资助项目(40474009,40674012,40625013);中科院动力大地测量学重点实验室基金资助项目(L06-09)
详细信息
    作者简介:

    柴艳菊(1970-),女,河南商丘人,助理研究员,现为中国科学院研究生院在读博士生,cyjigg@sina.com.

  • 中图分类号: V 249.32+9

On-the-fly ambiguity resolution by restricting coordinates predicted by Doppler

  • 摘要: 利用GPS(Global Positioning System)相位观测进行动态定位的主要困难就是法方程不适定问题(秩亏或病态问题),导致模糊度浮动解及其协方差阵不准,以此构造的模糊度搜索范围比较大,使得模糊度的搜索非常困难.提出利用Doppler高精度测速预报近似坐标并对其附加约束,解决法方程求逆中的不适定问题,提高模糊度浮动解及其方差阵的准确性,缩小模糊度的搜索范围,提高模糊度搜索的成功率.结果表明,短基线情况,新方法在模糊度动态解算中取得了明显效果.

     

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出版历程
  • 收稿日期:  2007-01-16
  • 网络出版日期:  2008-01-31

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