GPS网络RTK误差改正数生成算法精度分析

The Accuracy Analysis of the Correction Generation Algorithms for GPS Network RTK

分析了GPS网络RTK系统的误差改正数生成算法的现状,通过模拟网络RTK区域网,采用不同的算法和网形进行试验,计算了误差改正数的内插质量因子,并进行了分析、比较。结果表明,各种算法在计算内插流动站误差时是有效的,其中线性组合法和线性内插法可获得较优结果,同时证明了流动站在网络中的位置和所选基准站网形的不同对算法模型的计算精度有较大影响。

The status of Correction Generation Algorithms for GPS network RTK system are analyzed,by simulating the regional network of network RTK,and experimented based on different algorithms and net-shapes,calculated the number of interpolation quality factor about the error corrections,compared,it is proved that the various algorithms are effective in interpolating the errors about Kinematic station,and the LIM and the LCM are better than others and a conclusion is drawn that the position of user station in the network and the form of the network has large effects on the accuracy of the mathematical models.