袁伟, 熊永良, 黄丁发. 附有运动轨迹约束条件的整周模糊度快速分解算法[J]. 武汉大学学报 ( 信息科学版), 2009, 34(11): 1316-1319.
引用本文: 袁伟, 熊永良, 黄丁发. 附有运动轨迹约束条件的整周模糊度快速分解算法[J]. 武汉大学学报 ( 信息科学版), 2009, 34(11): 1316-1319.
YUAN Wei, XIONG Yongliang, HUANG Dingfa. A Fast Ambiguity Resolution Algorithm with Track Constraints on Moving Platform[J]. Geomatics and Information Science of Wuhan University, 2009, 34(11): 1316-1319.
Citation: YUAN Wei, XIONG Yongliang, HUANG Dingfa. A Fast Ambiguity Resolution Algorithm with Track Constraints on Moving Platform[J]. Geomatics and Information Science of Wuhan University, 2009, 34(11): 1316-1319.

附有运动轨迹约束条件的整周模糊度快速分解算法

A Fast Ambiguity Resolution Algorithm with Track Constraints on Moving Platform

  • 摘要: 分析对比了GPS数据处理中使用的天线相位中心的相对改正方式和绝对改正方式,使用绝对改正模式具有更多的优点,而使用不同的天线相位改正模式时,会对GPS数据处理结果产生影响。利用BerneseGPS软件对某城市CORS系统网的实例数据进行了计算,结果表明,采用不同的相位中心改正方式对坐标结果在高程方向会造成cm级的影响,网的尺度比会变化6.4ppb,对流层天顶方向总延迟的估计值之间的差别为-6.9±4.0mm。

     

    Abstract: The Kalman filtering method with track constraints is presented and Kalman filtering equations are derived. Integer ambiguity resolution with road constraints based on LAMBDA is given. Float ambiguity is obtained by the Kalman filter with road constraints. Vehicle based GPS tests were carried out to show the feasibilities of the proposed method and the results indicate that the proposed method can improve the accuracy of float ambiguity and enhance ambiguity resolution speed and successful rate efficiently.

     

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