基于多基站网络的VRS技术及其系统误差分析

The VRS Technical and System Error Analysis Based on Multi-network Base Stations

随着高科技的不断发展,GPS-RTK技术在实际应用中的局限性已经越来越明显,VRS技术的出现克服了这种局限性。本文叙述了虚拟参考站(VRS)技术的组成和工作原理,分析了影响VRS定位精度的两大主要系统误差,重点介绍了削弱电离层延迟和对流层延迟的主要方法和几种数学模型。

With the continuous development of technology,The limitations of GPS-RTK technology in the practical applica- tion has became more and more obvious. The appearance of VRS has overcome this limitation. This article introduces the composition and principle of Virtual Reference Station （VRS） technology and analyzes the two system errors that impact VRS positioning accuracy,then introduces the main methods and several kinds of mathematical models of weakening Iono- spheric and Tropospheric delay.