摘要
本文首先介绍了GPS网络RTK的定位原理及其线性组合法的数学模型。然后引用某地区4个GPS控制点的观测数据,对本文提出的线性组合法数学模型的正确性进行了模拟计算。结果表明:1)线性组合法数学模型能够很好地模拟流动站与参考基准站间的测量误差;2)使用精密星历与使用广播星历进行网络RTK定位,两者定位结果精度一致。
This paper introduces GPS network RTK positioning principle and its linear combination mathematic model. Then on the basis of the 4 GPS control points＇ observation data obtained from a region, the correctness of the mathematical model established in this paper is to be tested through simulating experimental calculations. The result shows： 1） The linear combination model can simulate the observation errors between roving receivers and reference stations very well. 2） By using precise ephemeris to do post-positioning and using broadcast ephemeris to do real time kinematic positioning, in theory, the precision of both positioning results should be the same.
出处
《工程地球物理学报》
2004年第6期530-532,共3页
Chinese Journal of Engineering Geophysics
关键词
网络RTK
线性组合法
误差
精度
network RTK
linear combination method
error
precision
