关于伪距差分和载波相位差分的精度比较研究

Analysis and Research on the Comparison of Accuracy in Difference of Pseudo-range and Difference of Carrier Phase

伪距差分和载波相位差分是差分GPS的两大定位技术,在各领域都有广泛的应用。本文首先介绍GPS的定位原理及其误差分析,然后介绍伪距差分原理和载波相位差分原理,最后结合实例,通过点位漂移量和点位中误差,证实载波相位差分定位精度高于伪距差分定位的精度。

Real Time Difference and Real Time Kinematic, two important positioning technologies of Differential GPS, are widely used in all fields. Firstly, this paper introduce the principle of GPS positioning and error analysis, then introduce principle of Real Time Difference and Real Time Kinematic. At last, combining with practice, through calculating positional drift and positional error, Accuracy of positioning of Real Time Kinematic is more than Real Time Difference is confirmed.