| 北斗地基增强系统框架下流动站定位精度分析 |
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| 引用本文： | 王涛,蔡东健,周旺辉,解雯.北斗地基增强系统框架下流动站定位精度分析[J].全球定位系统,2019,44(1):89-93. |
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| 作者姓名： | 王涛 蔡东健 周旺辉 解雯 |
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| 作者单位： | 1.苏州工业园区测绘地理信息有限公司,江苏 苏州 215027 |
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| 基金项目： | 江苏省测绘地理信息科研项目(JSCHKY201719);苏州市科学技术局重点研发产业化项目(SGC201716) |
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| 摘 要： | 江苏连续运行的参考站(CORS)苏州分中心已经建成覆盖全市的北斗地基增强系统框架网络,并基于此框架网络对区域用户提供服务,针对流动站在不同环境下连接各种源节点的稳定性和局限性问题进行了一系列测试.结果表明,在卫星不被遮挡的情况下,无论接收机是采用单星模式、双星模式,还是三星模式,其定位精度均能满足要求,即平面精度优于5cm,高程精度优于10cm.在卫星被遮挡的情况下,三星模式优势尤其明显,其初始化时间、稳定性以及定位精度均优于其他两种模式.
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| 关 键 词： | 北斗 平面精度 高程精度 稳定性 CORS |
Analysis of positioning accuracy of mobile stations under the framework of BDS ground-based augmentation system |
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| WANG Tao,CAI DongJian,ZHOU WangHui,XIE Wen.Analysis of positioning accuracy of mobile stations under the framework of BDS ground-based augmentation system[J].Gnss World of China,2019,44(1):89-93. |
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| Authors: | WANG Tao CAI DongJian ZHOU WangHui XIE Wen |
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| Institution: | 1.Suzhou Industrial Park Surveying,Mapping and Geoinformation Co.,Ltd,Suzhou 215027, China2.Chuzhou University,Chuzhou 239000, China. |
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| Abstract: | Suzhou Branch of Jiangsu CORS has built a whole city covering BeiDou ground-based augmentation system framework network.It provides services to regional users based on this framework network. A series of tests were conducted on the stability and limitations of the connection of various source nodes under different environments. The results show that its positioning accuracy can meet the requirements. The plane accuracy is better than 5 cm and the elevation accuracy is better than 10 cm, whether the receiver adopts single star mode, double star mode or three star mode when the satellite is not occluded. In the satellite occlusion case, three star mode advantage is particularly obvious,its initialization time, stability and positioning accuracy are better than the other two modes. |
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| Keywords: | BDS plane accuracy elevation accuracy stability CORS |
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