摘要
利用Helmert方差分量估计方法为GPS/BeiDou组合单点定位不同系统观测值定权,获得了合理的权值。分析了开阔环境和遮挡环境两种情况下的动态GPS/BeiDou组合单点定位的精度。结果表明:在静态观测和动态观测中,组合单点定位与单独GPS单点定位相比精度有显著提高。
The Variance Component Estimation （VCE） method is used to determine the weight of observations from different satellite systems in the combined GPS/BeiDou single point positioning （SPP） .A proper observation weight ratio between GPS and BeiDou pseud-orange measurements is acquired .The positioning accuracy of combined GPS/BeiDou SPP is analyzed using both static data and kinematic data collected under open sky and blocked envi-ronment .The results indicate that the combined GPS/BeiDou SPP can significantly improve the positioning accuracy for both the static and kinematic tests over GPS-only SPP .
出处
《全球定位系统》
2013年第6期12-16,共5页
Gnss World of China
基金
国家自然科学基金(批准号:41004011)
