论GPS网二维与三维平差相结合的必要性

On Necessity of the Combination GPS Network's 2D and 3D Adjustment

本文以某实测ＧＰＳ网的数据处理为例，通过分析和比较，论述了进行ＧＰＳ网成果处理时，采用二维平差和三维平差相结合的必要性，并对如何确保ＧＰＳ成果的可靠性，提出了一些有益的建议。

Based on an example of data processing of GPS network,the achievement is analysed and compared. The necessity of the combination of 2D and 3D of GPS network adjustment is expounded. Some beneficial suggestions to assure the reliability of GPS achievement are put forward.