摘要
针对虚拟参考站网络差分定位的关键技术,提出了虚拟相位观测值及差分改正信息生成的算法模型。为验证算法的正确性及评定虚拟参考站网络差分实时定位精度,基于某连续运行参考站网络结合自主开发的虚拟参考站系统软件SeuVRS1.0进行了相关实验。参考站网络实测数据的计算分析结果表明,参考站间空间误差内插效果较好,可以满足区域范围内厘米级实时定位的精度要求。
The key technique of network differential positioning based on virtual reference station, the algorithm the generation of virtual phase observation and differential corrections was proposed. At the same time,in order to evaluate the feasibility and location precision of the proposed technique, field tests were caried out based on the measured data of a continuous operating reference station network and by use of self-developed positioning software SeuVRS1.0. The results of test which conducted using regional networks demonstrate that distance-dependent errors can be effectively modeled between reference stations. Within the network, real time kinematic positioning based on virtual reference station can be achieved,with better than 4 cm accuracy in horizontal position.
出处
《大地测量与地球动力学》
CSCD
北大核心
2009年第1期123-126,131,共5页
Journal of Geodesy and Geodynamics
基金
"十一五"国家科技支撑计划重点项目(2008BAJ11B01
2008BAJ11B01
2008BAJ11B05)
关键词
GPS
虚拟参考站
主参考站
虚拟相位观测值
差分改正信息
GPS
VRS （ Virtual Reference Station）
primary reference station
virtual phase observation
differential correction information
