On the bases of analyzing the theory of GPS height survey, the author put forward a method to survey height accurately with GPS in mountain area by setting up a basic height surface and adding a correction of abnormal gravitation in mountain area.
在分析GPS测高理论的基础上,提出了用建立基础高程面和加入山区重力异常改正的方法,实现山地区域GPS精确测高,并用实例进行了检核,达到了四等水准测高精度要求。
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