GNSS-PPP算法与应用的研究进展

Progressions of research on the algorithms and applications of GNSS-PPP technology

针对在特殊环境中,全球卫星导航系统(GNSS)精密单点定位(PPP)常常被忽视的问题,对近年来GNSS-PPP在算法模型、工程应用、数据处理方面的研究进展进行了总结。重点回顾了算法模型在提高PPP的定位精度、收敛速度等方面的研究情况;讨论了GNSS-PPP在滑坡、超高层建筑、桥梁领域的典型应用;论述了有助于减少PPP的监测噪声误差及有利于提取结构有效信息的数据后处理技术。同时,依据GNSS-PPP的发展现状,对未来PPP技术的发展趋势进行了展望。

To aim at the problem that Global Navigation Satellite System(GNSS)Precise Point Positioning(PPP)technology,an important positioning model in special environment,is often ignored,the research progressions of GNSS-PPP in algorithm model,engineering application and data processing in recent years are summarized in this paper.The researches of the algorithm model in improving the positioning accuracy and convergence speed of PPP are reviewed.The typical applications of GNSS-PPP in landslide,super-high-rise buildings and bridges were discussed.The data post-processing techniques that help reduce the monitoring noise error of PPP and facilitate the extraction of effective information of the structure were explained.Meanwhile,according to the development status of GNSS-PPP,the development trend of PPP technology in the future is prospected.