非差PPP快速静态定位在物探测量中的应用

Application of non-differential GPS PPP technology on geophysical prospecting surveying

本文指出了采用GPS技术进行石油物探测量时存在的一些问题,提出了基于非差PPP快速静态定位方法,开发了相应的软件,并将其应用于物探测量,结果表明:当GPS接收机数据采样间隔设置为1s,整个观测时段不少于1h的前提下,在待测点上静态观测3s～5s的定位精度在平面方向优于5cm,解决了物探测量中作业范围大、精度要求高和无基站支持等困难地区的定位问题,对于探区物理点的实测工作具有积极意义。

Focusing on the existing related defect factors of GPS positioning on petroleum prospecting surveying in hard terrain and surface area, intending to position points with non-differential quick static positioning technology, the paper programmed software for utility of GPS on petroleum prospecting surveying. The result showed that configuring the GPS receive interval as 1 s and if the observa- tion duration last more than lh, the static precision could be better than 5cm in 3s-Ss. With the technology, the defect could be solved that when surveying in a large area, high precision requested and no base station supported during positioning geophysical points in difficult area, the method could improve prospecting surveying operation with convenience and efficiency.