基于SDCORS的网络RTK在工程测量中的精度分析

针对基于SDCORS网络RTK测量精度进行研究,通过实验分别对两种GPS接收机安置方式的测量精度进行对比,并对网络RTK测量精度的时间变化进行分析,结果表明:1)网络RTK平面控制测量时应该使用三脚架安置GPS接收机。对于高程测量,利用三脚架与对中杆安置GPS接收机对大地高程测量精度影响较小;2)网络RTK测量偶有大误差测量结果出现,应取多次观测结果进行成果检核;3)网络RTK测量相近历元的观测误差具有相关性,如果有条件,最好在不同时间段多次测量取平均值。

Based on SDCORS Network RTK Precision Analysis in Engineering Survey

This paper mainly research the precision of network RTK surveying based on SDCORS .The surveying precision of two way to install GPS receiver were compared and the time change of network RTK precision was analyzed by experimentation .The results show that:1)The plane control surveying by network RTK should using tripod to install GPS receiver and the height control surveying precision of two way to install GPS receiver have few influence .2) The big error were occasional occurred in network RTK surveying , and the result of network RTK should check by more surveying .3) The error of network RTK contiguous observation have close perti-nence.The average of repetitious surveying results on different time is a good method to enhance precision .