联合历元间差分相位和双频载波消电离层模型的定位方法  

A positioning method using combinations of epoch-differenced phase and un-differenced ionosphere-free carrier phase

作　　者：刘卓然 阮仁桂[2,3] 孙中苗 杨武召[1] 曹钰 LIU Zhuoran;RUAN Rengui;SUN Zhongmiao;YANG Wuzhao;CAO Yu(Qingdao Eco-Environment Monitoring Center of Shandong Province,Qingdao 266003,China;Xi'an Research Institute of Surveying and Mapping,Xi’an 710054,China;State Key Laboratory of Geo-Information Engineering,Xi’an 710054,China)

机构地区：[1]长安大学地质工程与测绘学院,陕西西安710054 [2]西安测绘研究所,陕西西安710054 [3]地理信息工程国家重点实验室,陕西西安710054

出　　处：《测绘科学与工程》2021年第2期11-16,78,共7页Geomatics Science and Engineering

摘　　要：本文展示了一种利用历元间载波相位差分结合双频载波消电离层组合观测量的定位方法,该方法计算简单,可用于低成本、小型化的无人机产业的实时导航定位。采用香港大地测量观测站数据对该方法进行验证,结果表明:滤波收敛后,该方法的定位结果在E、N、U方向精度(RMS)的平均值分别达到0.61m、0.21m、0.52m,三维精度达到0.83m,与传统伪距单点定位相比,精度有较大提升。This paper proposed a method for dual-frequency single point positioning using combinations of epoch-differenced phase and un-differenced ionosphere-free carrier phase.The method is simple in calculation,and its accuracy can meet the relevant requirements.It can be used for the real-time navigation and positioning of low-cost and miniaturized unmanned aerial vehicle(UAV)system.The results show that after the filtering convergence,the average positioning accuracies in E,N and U directions are 0.61 m,0.21 m,and 0.52 m respectively,and the three-dimensional accuracy is 0.83 m,which are greatly improved compared with those of the traditional single point positioning method.

关 键 词：双频载波 历元间差分 无电离层组合观测量 单点定位 卡尔曼滤波 

分 类 号：P228[天文地球—大地测量学与测量工程]