摘要
针对常规实时动态精密单点定位状态噪声大、观测误差复杂、精度不稳定等局限性,在具有基准站数据的前提下,提出了一种基于基准站改正信息的实时动态精密单点定位算法。该算法能有效解析出基准站和流动站的共性误差,进而修正流动站观测值精度;其定位模型仍采用传统非差PPP模型,与常规动态PPP解算软件兼容,算例结果证实该算法可以获取与动态相对定位等价的精度。
Traditional kinematic Precise Point Positioning（PPP） technology is affected easily by dynamic noise and complex observation errors,and also has a low instability of accuracy.A new real-time kinematic precise point positioning algorithm based on reference-station corrections is proposed to solve these problems.The algorithm can effectively resolve same observation errors between reference station and mobile station,and then modify accuracy of observations at mobile station.New algorithm is still using traditional PPP ionosphere-free combination observation model,and its processing steps are also consistent with common kinematics PPP software.The simulation results prove that new algorithm can obtain equivalent results with kinematic relative positioning.
出处
《大地测量与地球动力学》
CSCD
北大核心
2010年第6期135-139,共5页
Journal of Geodesy and Geodynamics
基金
国家自然科学基金(40902081
40774001
40841021)
国家863计划项目(2007AA12Z331)
中央高校基本科研业务费专项资金(CHD2010ZY001)
长安大学基础研究支持计划专项基金
关键词
动态精密单点定位
基准站改正
相对定位
无电离层组合
误差
kinematic precise point positioning
reference-station corrections
relative positioning
ionosphere-free combination
error
