A new method in this paper is offered to solve the question, which is based on astronomical leveling and USES GPS to measure height anomaly difference between both sides of obstacle.
为解决这一问题，本文提出了一种基于天文水准原理的GPS方法，通过测定障碍物两侧的高程异常差来实现高程传递。
To improve the GPS leveling fitting accuracy of hilly terrain and to build the adaptive fitting model of the coverage, this article USES the multidimensional function method to fit the height anomaly.
为提高丘陵地区GPS水准拟合精度，建立适合当地测区的拟合模型，采用多面函数法对高程异常进行拟合。
Several methods to estimate height anomaly of GPS network are discussed.
对几种估算GPS测区高程异常的方法进行了讨论和分析。
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