GPS监测网变形分析基础的统一及稳定性分析

在对GPS监测网的观测成果进行平差计算和变形分析时,必须考虑GPS网的位置基准、尺度基准和方位基准统一的问题。叙述了无穷权在变形监测网基准统一中的应用,分析了GPS监测网的稳定性。

Analysis of Unity and Stability in GPS Monitoring Deformation Analysis

When do the compensating computation and the deformation analysis of GPS monitoring observation results,we must consider the unitarily of location reference,scale reference and orientation reference in GPS network.When did the GPS network data collection,the two observations is non-continuous,there is a time interval between the two observations,as the impact of ionospheres refraction error and GPS satellite ephemeris,there are some location,scale and orientation errors exist the period of the baseline vector systems,if don＇t consider these deviations,the analysis is likely to handle the error as the deformation,thus affecting the accuracy of the results.