网络RTK测量坐标与地方坐标转换方法的研究

Research of the Method for Coordinate Transformation between RTK-Net Survey Coordinate System and Local Coordinate System

在小区域内,对RTK测量坐标采用空间7参数转换模型(Bursa-wolf)、平面4参数转换模型、线性拟合、多项式拟合等方法换算至地方坐标系,对比其误差和精度,分析模型的优缺点,得出在小范围测区内控制点高程不明的情况下,采用平面拟合方法完全可以满足精度要求的结论。

In a limited area, the seven-parameter special model （Bursa-wolf）, the four-parameter planar model, linear regression, polynomial fitting is used to transform RTK survey into the local coordinate system. The error and precision of the models are compared. The advantages and disadvantages of the models are analyzed. The valuable conclusion is drawn.