球心拟合RTK测量技术及其精度分析

为避免RTK测量作业时对中杆倾斜引起的测量误差,提出球心拟合RTK测量方法,并利用该方法进行实验测量分析其测量精度,实验结果表明:(1)该法的测量精度受参与拟合的球面天线相位中心个数影响较大,当拟合点数大于8个时拟合结果较可靠;(2)该法的测量精度受对中杆倾斜角度的影响较大,当对中杆倾斜角度在30°时拟合精度较高。该方法将为特殊环境下RTK高精度作业提供借鉴参考,具有一定的工程应用价值。

Spherical Center Fitting RTK Measurement Technology and Its Precision Analysis

In order to avoid the measurement error caused by the plumbing pole inclination during the RTK measurement,the spherical center fitting RTK measurement technology is proposed.The precision of the proposed technology is analyzed through experimental measurement,and the results show that the precision of the proposed technology is greatly affected by the number of spherical points participating in the fitting.When the number is more than 8,the fitting result is more reliable.The precision of this method is also greatly affected by the inclination angle of plumbing pole.When the inclination angle is 30°,the fitting precision is higher.This method will provide reference for RTK high-precision operation in special environment,and has certain engineering application value.