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两步法快速解算编队卫星GPS模糊度

王海涛 欧吉坤 袁运斌

王海涛, 欧吉坤, 袁运斌等 . 两步法快速解算编队卫星GPS模糊度[J]. 北京航空航天大学学报, 2009, 35(9): 1130-1133.
引用本文: 王海涛, 欧吉坤, 袁运斌等 . 两步法快速解算编队卫星GPS模糊度[J]. 北京航空航天大学学报, 2009, 35(9): 1130-1133.
Wang Haitao, Ou Jikun, Yuan Yunbinet al. Rapid resolution of GPS ambiguities of satellite formation flying with two-step method[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(9): 1130-1133. (in Chinese)
Citation: Wang Haitao, Ou Jikun, Yuan Yunbinet al. Rapid resolution of GPS ambiguities of satellite formation flying with two-step method[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(9): 1130-1133. (in Chinese)

两步法快速解算编队卫星GPS模糊度

基金项目: 国家自然科学基金资助项目(40674012);国家863计划资助项目(2007AA12Z305, 2007AA12Z311)
详细信息
    作者简介:

    王海涛(1979-),男,山东滕州人,博士生,whigg_wang@hotmail.com.

  • 中图分类号: V 557.1

Rapid resolution of GPS ambiguities of satellite formation flying with two-step method

  • 摘要: 为克服卫星编队飞行实时相对定位中双频模糊度解算速度慢的缺点,结合扩展Kalman滤波(EKF,Extended Kalman Filter),首先采用少数个历元(如10个)相位平滑伪距相对定位结果与 L6的平均值对滤波初始化,再根据两步法解算双频模糊度,即先解算并正确固定宽巷模糊度,获得较准确的基线分量估值,然后采用选权拟合方法,将基线分量作为约束条件解算并固定双频模糊度.仿真算例计算结果表明,当宽巷模糊度正确固定后,编队卫星间相对定位误差在5 cm以内,两步法可以在较短时间(约3 min)内固定双频模糊度,为精确解算编队卫星的相对状态提供保障.

     

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出版历程
  • 收稿日期:  2008-09-10
  • 网络出版日期:  2009-09-30

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