摘要
URE(User Range Error)通常作为导航星座的用户伪距精度的一个重要指标,用来评价导航星座定位的精度。文章对URE的意义进行了详细解释,采用加权思想推导了导航卫星单星及导航星座URE计算模型,最后通过仿真手段对URE计算进行了仿真验证。
URE（User Range Error） is usually used as one of the important index accessing the pseudo- range accuracy of the users for the navigation satellites constellation system. In the paper, the concept of URE was explained comprehensively, and the calculation models of single satellite and all satellites in the navigation constellation were derived using weighting method. Finally, the calculating results of URE was verified by the means of simulation.
出处
《测绘科学》
CSCD
北大核心
2014年第11期3-5,共3页
Science of Surveying and Mapping
关键词
导航星座
URE模型
加权计算
navigation satellites constellation
URE model
weighting calculation
