The paper introduces the theory, methods and ways to be realized upon how to strengthen and improve the leveling network of astronomy and gravity with the application of GPS leveling point.
介绍如何利用GPS水准点加强和改善天文重力水准网的原理、方法及实现的途径。
Some popular methods for GPS-leveling fitting are compared. The advantages of an improved method with height anomaly model are pointed out specially.
针对目前GPS水准拟合中几种主要方法及其存在的问题进行了讨论，特别指出了顾及高程异常模型的改进方法的优点。
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