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本文主要介绍GPS技术在公路勘测中控制网的布设方案、外业观测、平差计算及精度分析,重点讨论了平差计算中基线平差、三维无约束平差、约束平差精度成果问题。
This paper mainly introduces the layout of control network, field observation, adjustment and precision analysis of GPS technology in highway survey. The problems of baseline adjustment, three-dimensional unconstrained adjustment and constraint adjustment accuracy are mainly discussed.