摘要：本文主要研究伪卫星室内高精度实时动态定位系统，介绍了伪卫星定位关键问题；

Abstract: This paper studies the pseudolite indoor precision real-time dynamic positioning system, introducing the key issues of the pseudo-satellite positioning;

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针对GPS实时动态定位技术在铁路勘测中的应用，提出连续三角网重复设站测量既有线的方法。

A new surveying method with GPS RTK technique is proposed for the existing railway by overlapped stations in continuous triangle networks.

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RTK定位技术是基于载波相位观测值的实时动态定位技术，它在地形测量中蕴含着巨大的潜力。

The RTK localization is a real-time and dynamic localization technology which is based on the observed value in carrier phase. It has the huge potential in the terrain survey.

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