This article analyses current GPS difference technology and puts forward a difference position technology which can apply in BEIDOU system for improving the position precision.
本文在对现有的GPS差分技术进行分析的基础之上，提出了一种适合北斗导航定位系统的差分定位技术，以提高其定位精度。
Multipath error is a main influence on high-precision GPS dynamic deformation monitoring results as it is difficult to be mitigated by difference observation in most of applications.
多路径误差在绝大部分应用中，其测站间相关性很弱，不能通过差分观测得到有效削弱，成为高精度GPS动态变形监测中的主要误差源。
We can enlarge the range of mapping region by utilizing CDMA wireless data transmission in transporting GPS difference data, and realize high precision orientation of real time.
利用CD MA无线数据传输技术传送gps差分数据可以扩大测区范围，实现高精度实时动态定位。
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