[1]柯福阳,王庆,潘树国,等.GNSS网络RTK算法模型及测试分析[J].东南大学学报(自然科学版),2009,39(4):763-768.[doi:10.3969/j.issn.1001-0505.2009.04.022]
 Ke Fuyang,Wang Qing,Pan Shuguo,et al.Model of GNSS network RTK algorithm and test analysis[J].Journal of Southeast University (Natural Science Edition),2009,39(4):763-768.[doi:10.3969/j.issn.1001-0505.2009.04.022]
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GNSS网络RTK算法模型及测试分析()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
39
期数:
2009年第4期
页码:
763-768
栏目:
其他
出版日期:
2009-07-20

文章信息/Info

Title:
Model of GNSS network RTK algorithm and test analysis
作者:
柯福阳1 王庆1 潘树国1 袁本银2
1 东南大学仪器科学与工程学院, 南京 210096; 2 东南大学交通学院, 南京 210096
Author(s):
Ke Fuyang1 Wang Qing1 Pan Shuguo1 Yuan Benyin2
1 School of Instrument Science and Engineering, Southeast University, Nanjing 210096, China
2 School of Transportation,Southeast University, Nanjing 210096, China
关键词:
全球卫星导航系统(GNSS) 虚拟参考站 网络RTK 模糊度 虚拟观测值 Ntrip协议
Keywords:
global navigation satellite system(GNSS) virtual reference system network real-time kinematic(RTK) ambiguity virtual observation networked transport of RTCM via Internet protocol(Ntrip)
分类号:
V557.1
DOI:
10.3969/j.issn.1001-0505.2009.04.022
摘要:
针对GNSS网络差分系统软件的特点,比较分析双频P码伪距法、双频线性组合法2种宽巷模糊度的解算方法,给出解算结果的约束条件.然后采用改进的无电离层组合并根据模糊度的约束条件计算L1,L2的双差模糊度ΔN1,N2.2由ΔN11和ΔN22计算出的参考站间大气误差以及主站、虚拟参考站、卫星之间的空间向量关系构造出虚拟参考站的虚拟观测值.测试结果表明:系统软件的各项技术指标满足规范要求,平均初始化时间为27 s,平面外符合精度x方向为2.8 cm,y方向为1.7 cm,高程方向为7.9 cm.算法模型准确可行, 系统各组成部分可靠性、稳定性好,能保持24 h连续运行.
Abstract:
According to the characteristic of global navigation satellite system(GNSS)network real-time kinematic(RTK)software, two methods of resolving wide-lane ambiguity, double frequency P code pseudo range and double frequency linear combination, are compared, and constrained conditions for results are given. Then, an improved non-ionosphere combination method and the constrained conditions are adopted to compute double difference ambiguities of L1 and L2, which are abbreviated as ΔN11 and ΔN22, respectively. Finally, virtual observation can be constructed based on atmosphere errors among two reference stations and the space vector relationship among main station, virtual reference and satellite. The results show that the qualifications meet criterion requirements. The average initialization time is 27 s; the out accuracies are 2.8 cm in x direction, 1.7 cm in y direction, and 7.9 cm in H direction. The algorithm models are accurate and feasible. The reliability and stability of the system is good. Continuous operation can be maintained for 24 h.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介: 柯福阳(1981—),男,博士生; 王庆(联系人),男,博士,教授,博士生导师,w3398@263.net.
基金项目: “十一五”国家科技支撑计划重点资助项目(2008BAJ11B05).
引文格式: 柯福阳,王庆,潘树国,等.GNSS网络RTK算法模型及测试分析[J].东南大学学报:自然科学版,2009,39(4):763-768. [doi:10.3969/j.issn.1001-0505.2009.04.022]
更新日期/Last Update: 2009-07-20