单频北斗手持终端PPP定位与精度分析

传统的无电离层组合精密单点定位技术(PPP)只适用于双频观测值,无法充分利用多频观测值的观测信息,限制了PPP技术的发展。对于GPS、GLONASS的PPP静态、动态事后解算研究已比较成熟,但实时北斗PPP还处于研究阶段。鉴于此,对单频北斗实时PPP进行了研究;基于BDS系统,建立了单频北斗PPP模型;利用定制手机进行了测试实验,以验证模型的正确性,并分析了单频北斗手持终端实时PPP的定位精度。

PPP Positioning and Accuracy Analysis of BDS Single Frequency Mobile Terminal

The traditional ionospheric free combination of precise point positioning(PPP)is only suitable for dual frequency observations,and can not make full use of the observation information,which limits the development of PPP technology.The static and dynamic post-processing researches of GPS and GLONASS have been mature,but the real-time BDS PPP is still in the research stage.Aiming at this problem,we studied the single frequency BDS real-time PPP in this paper.Based on BDS,we completed the establishment of single frequency BDS PPP model,and carried out the test experiment based on the customized mobile phone.We verified the correctness of the model proposed in this paper by the experiment,and analyzed the real-time positioning accuracy of single frequency BDS mobile terminal.