基于多参考站网络的VRS算法研究与实现

Researching and Realization of Algorithm of VRS Based on Network of Numerous Reference Stations

多参考站网络的建立,为网络RTK的实现奠定了基础。虚拟参考站技术是网络RTK的一种,它以众多的优势代表了网络RTK的主要发展趋势。简单介绍了VRS系统的工作原理;从基准站间双差改正数的生成、虚拟观测值的生成和流动站处的定位解算3个方面,详细推导了VRS的数学模型;针对差分改正信息,提出了综合误差内插算法;最后,利用4个已知点的观测数据,结合编程计算,证明了文中VRS数学模型的正确性,为虚拟参考站系统的进一步研究提供依据。

The foundation of numerous reference stations establish base of network RTK. The Virtual Reference Station technique is one of the Network RTK, which stands for the future trend of GPS Network RTK due to its many advantages. This paper introduced the work principle of VRS, deduced the mathematic model of VRS in detail, proposed the method of integrated bias interpolation, and simulated the VRS system through experiment, proved the validity of the VRS positioning according to our program , which could provide consult for further researching.