RTK测量过程中误差影响因素对于精度影响的试验分析

Experimental Analysis of Influence of Error Factors on Accuracy in RTK Measurement Process

RTK实时动态定位技术能够快速地得到厘米级的坐标定位精度结果,但由于RTK定位结果会受信号遮挡、信号干扰等因素的影响,目前在工程测量中RKT技术没有普及。通过试验的方式对RTK技术在实施过程中分析HRMS、VRMS、基站距离、PDOP值、卫星数等因素对于测量精度的影响,用回归分析的方式找到这些因素与测量误差之间的线性关系,拟得到RTK测量误差处理的经验公式,进而对RTK测量的误差进行处理,提高RTK定位精度,为小范围工程测量中RTK技术的推广,提供可靠依据。

RTK real-time dynamic positioning technology can quickly obtain centimeter-level coordinate positioning accuracy results,but because RTK positioning results will be affected by signal occlusion,signal interference and other factors,RKT technology is not popular in engineering surveying.In this paper,the influence of factors such as HRMS,VRMS,base station distance,PDOP value and satellite number on measurement accuracy is analyzed by experiment.The linear relationship between these factors and measurement error is found by regression analysis,and the empirical formula of RTK measurement error processing is obtained.The error of RTK is processed to improve the positioning accuracy of RTK and provide reliable basis for the popularization of RTK technology in small-scale engineering survey.