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[1]吴玮.利用GPS双频观测值实现PPP电离层延迟高阶项改正[J].南京工业大学学报(自然科学版),2015,37(01):94-98.[doi:10.3969/j.issn.1671-7627.2015.01.017]
 WU Wei.Modelling of higher-order ionospheric terms for precise point positioning by dual frequency GPS observation method[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2015,37(01):94-98.[doi:10.3969/j.issn.1671-7627.2015.01.017]
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利用GPS双频观测值实现PPP电离层延迟高阶项改正()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
37
期数:
2015年01期
页码:
94-98
栏目:
出版日期:
2015-01-19

文章信息/Info

Title:
Modelling of higher-order ionospheric terms for precise point positioning by dual frequency GPS observation method
文章编号:
1671-7627(2015)01-0094-05
作者:
吴玮
南京工业大学 测绘学院,江苏 南京 211800
Author(s):
WU Wei
College of Geomatics Engineering,Nanjing Tech University,Nanjing 211800,China
关键词:
双频观测值 总电子含量 电离层延迟高阶项 精密单点定位
Keywords:
dual frequency observation value total electron content higher-order ionospheric terms precise point positioning
分类号:
P228
DOI:
10.3969/j.issn.1671-7627.2015.01.017
文献标志码:
A
摘要:
给出了利用双频观测值计算L3组合电离层延迟高阶项改正的方法,并与全球电离层延迟文件的改正效果进行对比。利用赤道附近的15个国际全球卫星导航定位系统服务组织(IGS)站的数据进行比较,结果表明:2种方法计算的电离层二阶项延迟互差最大不超过1 cm,三阶项延迟互差最大不超过5 mm; 电离层高阶项改正后的观测值精密单点定位(PPP)解算结果N、E、U方向互差平均值分别为0.4、0.5、1.0 mm,因此2种改正方法效果在同一水平。
Abstract:
As the ionosphere-free combination L3 used in precise point positioning(PPP)could only eliminate the first-order ionospheric term,the higher-order ionospheric effects could cause a range bias of several centimeters.A method for correcting L3 measurement was evaluated and compared with the results computed by global ionosphere map(GIM)model. Data on a stormy day from 15 intermational GNSS service(IGS)stations near the equator were used to assess this comparison.Results indicated that the differences of second and third-order ionospheric corrections were no more than 1 cm and 5 mm, respectively,and the average differences of PPP solutions with higher-order ionospheric corrections from two scenarios were 0.4 mm, 0.5 mm and 1.0 mm in north(N), east(E)and up(U)directions, respectively. Therefore, the effectiveness of the method approximately reached the same level as that of GIM model.

参考文献/References:

[1] Hoque M,Jakowski N.Mitigation of higher order ionospheric effects on GNSS users in Europe [J].GPS Solution,2008,12(2):87-97.
[[2] 张小红,任晓东,郭斐.顾及电离层延迟高阶项改正的精密单点定位[J].武汉大学学报:信息科学版,2013,38(8):883-887.
[[3] 匡翠林,金蕾.精密单点定位的高阶电离层误差改正研究[J].武汉大学学报:信息科学版,2013,38(8):888-891.
[[4] Morton Y T,van Graas F,Zhou Q,et al.Assessment of the higher order ionosphere error on position solutions [J].Navigation,2009,56(3):185-193.
[[5] Hoque M,Jakowski N.Estimate of higher order ionospheric errors in GNSS positioning [J].Radio Science,2008,43:1-15.
[[6] Pireaux S,Defraigne P,Wauters L,et al.Higher-order ionospheric effects in GPS time and frequency transfer [J].GPS Solution,2010,14(3):267-277.
[[7] Hernández-Pajares M,Juan J M,Sanz J,et al.Second-order ionospheric term in GPS:implementation and impact on geodetic estimates [J].Journal of Geophysical Research,2007,112:1-16.
[[8] Elmas Z G,Aquino M,Marques H A,et al.Higher order ionospheric effects in GNSS positioning in the european region[J].Annales Geophysicae,2011,29:1383-1399.
[[9] Choi B K,Cho J H,Lee S J.Estimation and analysis of GPS receiver differential code biases using KGN in Korean Peninsula [J].Advances in Space Research,2011,47(9):1590-1599.
[[10] 章红平,施闯,唐卫明.地基GPS区域电离层多项式模型与硬件延迟统一解算分析[J].武汉大学学报:信息科学版,2008,33(8):805-809.

备注/Memo

备注/Memo:
收稿日期:2014-03-21
基金项目:江苏省测绘地理信息科研项目(JSCHKY201413); 精密工程与工业测量国家测绘地理信息局重点实验室开放课题(PF2011-9)
作者简介:吴玮(1982—),女,江苏赣榆人,讲师,硕士,主要研究方向为GPS定位方向,E-mail:jzwu@njtech.edu.cn.
引用本文:吴玮.利用GPS双频观测值实现PPP电离层延迟高阶项改正[J].南京工业大学学报:自然科学版,2015,37(1):94-98..
更新日期/Last Update: 2015-01-20