GPS高程平差在道路勘测设计中的应用研究

Application of GPS Height Adjustment to Road Surveying and Design

GPS技术在道路勘测设计中的应用越来越广泛,但GPS只能提供给用户精确的平面坐标和大地高,而不是工程中需要的正常高。本文介绍了用正交函数法求高程异常的基本原理,并利用已知的黑龙江绥满路虎峰岭段高速公路的控制测量成果进行了检核,并得出了具体的结论,对工程高程测量具有一定的指导意义。

GPS technology has been widely used in road surveying and design. But GPS could only provide the user plane coordinates and geodetic height with high accuracy, could not provide the normal height which required in engineering. This paper introduced the basic principle to acquire height anomaly using orthogonal function, took the control surveying results of Hufengling section of Suiman road in Heilongjiang to testify, and drew specific conclusions which is valuable to direct engineering height surveying.