GPS单频接收机在长输管道测量中的应用

Application of the GPS Single Frequency Receiver in Pipeline Surveying.

目前国家测量控制点已被严重破坏,不能满足长输管道首级控制测量的要求(每20～30km与国家点联测一次)。常规控制网是以三角形构成的锁、网组成,用这种方案进行长输管道测量的首级控制时,工作量大,费用高,且控制网的推进速度慢。为此提出了用GPS单频接收机进行长输管道测量的首级控制,搜集并整理了大量的GPS网数据,进行了多种方案的计算,对结果进行了分析,总结出GPS单频机用于长输管道测量首级控制的方案,使原有的单频卫星定位接收机发挥了更大作用,提高了测量工效及测量精度。

Primary pilot survey of long distance pipeline can not depend upon the national pilot points which are severely damaged, and therefore will result in large work quantity and cost, and limted progress if using the conventional pilot network which is made up of triangular chains or net. A great amount of GPS network data previously measured are collected, calculated and analized, and it is concluded that appling GPS single frequency receiver for pipeline surveying can make full use of the single frequency satellite position-ning receiver, and increase working efficiency and survey precision.