GPS-RTK与网络RTK技术的差异及协同作业

Differences and Collaborative Operation between GPS-RTK and Network RTK Technologies

随着北京城市化进程的加速,越来越多的规划监督项目远离了繁闹的市区,六环外、各郊区县项目的暴增给网络实时动态载波相位差分技术(Real Time Kinematic,RTK)的使用带来更多难题。由于偏远地区通信设施建设滞后导致网络不稳定,网络RTK初始化时间和收敛精度受到极大影响,需要采取有效技术手段进行解决、改善。分别阐述全球定位系统(Global Positioning System,GPS)GPS-RTK和网络RTK的原理及作业差异,对GPS-RTK的测量精度进行理论推导,并通过实验数据分析各项结果,最终结果表明,在通信网络不佳,小范围作业采用GPS-RTK进行放线,数据整体稳定性较网络RTK更好,可以满足相关规范要求。

With the acceleration of the urbanization process in Beijing,more and more planning supervision projects are far away from the bustling urban area,and the explosion of projects outside the sixth Ring Road,suburban areas and counties brings more problems to the use of RTK.Due to the network instability caused by the delayed construction of communication facilities in remote areas,the initialization time and convergence accuracy of network RTK are greatly affected.Then,whether the accuracy of GPS-RTK could meet the requirements of planning supervision and radiating is the key problem.In this paper,The principle of GPS-RTK and network RTK and differences was expounded on the measuring accuracy of GPS-RTK theoretical derivation.Through the analysis of experimental data the results,the final result showed that the communication network,small scope of operations using GPS-RTK to pay-off,stability of overall network RTK data better,could meet the requirements of the relevant specification.