GPS实时动态差分技术在水平位移监测中的应用研究

摘要

随着工程规模的日益扩大，常见的水平位移监测方法在大面积测区的情况下面临诸多困难，不能满足周期性监测的需要，而GPS的实时差分技术方便、快捷，但是不能满足水平位移监测精度的要求。通过设计测量误差评估试验，采集数据并进行整理，应用数理统计理论，进行方差分析，研究增加平滑采集次数与点位中误差的关系以及如何提高测量精度，达到可以利用GPS实时动态差分技术进行水平位移监测的目的，并进行技术分析和理论研究。%With the increasingly enlarged engineering scale, conventional horizontal displacement survey doesn’t meet the requirement for periodic survey in large survey area due to many technical difficulties. The technique of GPS real-time Kinematic difference (RTK-GPS) is convenient and efficient, but doesn’t satisfy the requirement for horizontal displacement survey precision. Mathematic theory of statistics applied to variance analysis by design survey error evaluation test, data Gathering and sorting-out. Relevant research was made in order to find the impact of smooth gathering times on mean square error of a point, improve the survey precision, and realize the application of RTK-GPS in horizontal displacement survey. In addition, technical analysis and theoretical research were also carried out.