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北斗系统UERE及定位精度评估

刘瑞华 王莹 王剑

刘瑞华, 王莹, 王剑. 北斗系统UERE及定位精度评估[J]. 空间科学学报, 2019, 39(1): 118-128. doi: 10.11728/cjss2019.01.118
引用本文: 刘瑞华, 王莹, 王剑. 北斗系统UERE及定位精度评估[J]. 空间科学学报, 2019, 39(1): 118-128. doi: 10.11728/cjss2019.01.118
LIU Ruihua, WANG Ying, WANG Jian. Evaluation on UERE and Positioning Accuracy of BDS[J]. Chinese Journal of Space Science, 2019, 39(1): 118-128. doi: 10.11728/cjss2019.01.118
Citation: LIU Ruihua, WANG Ying, WANG Jian. Evaluation on UERE and Positioning Accuracy of BDS[J]. Chinese Journal of Space Science, 2019, 39(1): 118-128. doi: 10.11728/cjss2019.01.118

北斗系统UERE及定位精度评估

doi: 10.11728/cjss2019.01.118
基金项目: 

国家重点研究发展计划项目(2016YFB0502402)和民航安全能力建设项目(AADSA0007)共同资助

详细信息
    作者简介:

    刘瑞华,ywang0808@163.com

  • 中图分类号: V448;TN967.1

Evaluation on UERE and Positioning Accuracy of BDS

  • 摘要: 用户测距误差(URE)与用户设备误差(UEE)是影响定位精度的主要因素.民航是北斗系统的高端用户,监测其对民航机场的覆盖性和服务性能十分必要.本文根据华东、华南、华北、西北地区4个民航机场观测站的北斗实测数据,分析了各机场卫星的可见性.根据URE的解算方法、电离层修正模型、对流层修正模型以及定位精度的评估方法,给出了对应的性能评估结果.研究发现:可见星数均在6~14颗,满足定位要求; 95%置信度下,电离层延迟优于7.50m,对流层延迟优于13.28m,地球静止轨道卫星(GEO)、倾斜地球同步轨道卫星(IGSO)、中圆轨道卫星(MEO)卫星的URE值分别优于2.36m,1.72m,2.59m,满足北斗规范的要求;95%置信度下,定位精度水平方向优于3.63m,垂直方向优于6.98m.结果表明北斗系统在民航机场监测站的覆盖性及服务性能良好.

     

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出版历程
  • 收稿日期:  2018-01-24
  • 修回日期:  2018-10-28
  • 刊出日期:  2019-01-15

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