利用GPS双频数据进行区域电离层TEC提取

聂文锋; 胡伍生; 潘树国; 宋玉兵

doi:10.13203/j.whugis20130046

利用GPS双频数据进行区域电离层TEC提取

¹ 浙江水利水电学院工程实验实训中心,浙江杭州,310018;² 东南大学交通学院测绘工程系,江苏南京,210096;³ 东南大学仪器科学与工程学院,江苏南京,210096;⁴ 江苏省测绘地理信息局,江苏南京,210013

基金项目: 国家自然科学基金资助项目(41274028,41074021)

详细信息

作者简介:
聂文锋,硕士生,研究方向为GNSS电离层提取建模以及GNSS精密定位。

通讯作者:
胡伍生

中图分类号: P228.42
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出版历程
- 收稿日期: 2013-04-14
- 修回日期: 2014-09-04
- 发布日期: 2014-09-04

)Extraction of Regional Ionospheric TEC from GPS Dual Observation

¹Engineering Experiment Traning Center,Zhejiang University of Water Resources and Electric Power,Hangzhou 310018,China;²School of Transportation,Southeast University,Nanjing 210096,China;³School of Instrument and Science,Southeast University,Nanjing 210096,China;⁴Mapping Geographic Information Bureau of Jiangsu Province,Nanjing 210013,China

Funds: The National Natural Science Foundation of China,Nos.41274028,41074021.

More Information

Author Bio:
NIE Wenfeng,postgraduate,specializes in ionosphere based on GNSS and GNSS Precise positioning.

Corresponding author:
HU Wusheng

摘要

摘要: 目的从利用GPS提取区域电离层总电子含量(total electron content,TEC)的基本原理出发,解决了伪距观测值优化以及硬件延迟(DCB)处理问题,并将提取的TEC信息与欧洲定轨中心(CODE)计算的全球电离层(GIM)模型内插值应用在单频精密单点定位中,进行电离层延迟改正实验。结果表明,利用本文提取的TEC值进行单频精密单点定位电(PPP)离层延迟改正时,点位精度能提高到0.2～0.4m左右,明显优于利用GIM内插值的改正精度。
- TEC /
- 提取 /
- GPS /
- 区域电离层
Abstract: Objective We introduce a measurement for extracting the regional ionosphere TEC(total electron con-tent)from GPS dual observations in detail.From the basic principles for extracting TEC using GPS,we focus on solving two key problems.One was to improve the accuracy of pseudo-range observa-tions,and the other was to detach the DCB(differential code bias)of the satellites and receivers.Fur-thermore,the extracted TEC and TEC calculated by the CODE(Center for Orbit Determination in Eu-rope)were used as an ionospheric delay correction in a single-frequency point positioning model.Theresults show that the point accuracy can reach to 0.2-0.4musing the extracted TEC correction,a sig-nificantly improvement over the use of an interpolated GIM correction.
- TEC /
- extract /
- GPS /
- regional ionospheric

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参考文献(1)

[1]

Yuan Yunbin.Study on Theories and Methods ofCorrecting Ionospheric Delay and Monitoring Iono-sphere Based on GPS[D].Wuhan:Institute of Ge-odesy and Geophysics,Chinese Academy of Sci-ences,2002(袁运斌.基于GPS的电离层监测及延迟改正理论与方法的研究[D].中国科学院测量与地球物理研究所,2002)[2] Mao Tian,Wan Weixing,Liu Libo.An EOF BasedEmpirical Model of TEC over Wuhan[J].ChineseJournal of Geophysics,2005,48(4):827-834(毛田,万卫星,刘立波.用经验正交函数构造武汉地区电子浓度总含量的经验模式[J].地球物理学报,2005,48(4):751-758)[3] Brunner F K,G u M.An Improved Model for DualFrequency Ionospheric Correction of GPS Observa-tions[J].Manuscripta Geodaetica,1991,16(3):205-214[4] Chang Qing,Zhang Donghe,Xiao Zuo,et al.AMethod for Estimating GPS Instrumental Biases andIts Application in TEC Calculation[J].ChineseJournal of Geophysics,2001,44(5):596-601(常1026 第39卷第9期聂文锋等:利用GPS双频数据进行区域电离层TEC提取青,张东和,萧佐,等.GPS系统硬件延迟估计方法及其在TEC计算中的应用[J].地球物理学报,2001,44(5):596-601)[5] Li Zhigang,Cheng Zongyi,Feng Chugang,et al.A Study of Prediction Models for Ionosphere[J].Chinese Journal of Geophysics,2007,50(2):307-319(李志刚,程宗颐,冯初刚,等.电离层预报模型研究[J].地球物理学报,2007,50(2):327-337)[6] Komjathy A,Langley R B.An Assessment of Pre-dicted and Measured Ionospheric Total ElectronContent Using a Regional GPS Network[C].TheNational Technical Meeting of the Institute of Navi-gation,Santa Monica,1996[7] Schaer S.Mapping and Predicting the Earth’s Iono-sphere Using the Global Positioning System[D].Switzerland:Institut für Geodsie und Photogram-metrie,Eidg.Technische Hochschule Zürich,1999[8] Zhang Hongping,Shi Chuan,Tang Weiming.U-nited Solution to Polynomial VTEC Modeling andDCB Analysis Using Ground-Based GPS Observa-tions[J].Geomatics and Information Science ofWuhan University,2008,33(8):805-809(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)[9] Liu Jingnan,Chen Junyong,Ge Maorong,et al.Principle and Method of Wide Area Differential GPS[M].Beijing:Surveying and Mapping Press,1999(刘经南,陈俊勇,葛茂荣,等.广域差分GPS原理和方法[M].北京:测绘出版社,1999)[10]Liu Changjian.Study on Modeling Method andModel Quality Control of Ionosphere Based onGNSS[D].Zhengzhou:Information Engineering U-niversity,2011(刘长建.GNSS电离层建模方法与质量控制研究[D].郑州:信息工程大学,2011)[11]Zhang Hongping,Han Wenhui,Huang Ling,et al.Modeling Global Ionospheric Delay with IGSGround-Based GNSS Observations[J].Geomaticsand Information Science of Wuhan University,2012,37(10):1186-1189(章红平,韩文慧,黄玲,等.地基GNSS全球电离层延迟建模[J].武汉大学学报·信息科学版,2012,37(10):1186-1189)[12]Xue Junchen,Song Shuli,Zhu Wenyao,et al.AResearch on the Reliability of Ionospheric VTECand Satellite DCB from Regional GPS Network[J].Acta Astronomica Sinica,2011,52(4):310-321(薛军琛,宋淑丽,朱文耀,等.区域GPS网实测电离层变化和卫星硬件延迟的可靠性研究[J].天文学报,2011,52(4):310-321)[13]Gao Chengfa,Hu Wusheng.Principle and Applica-tion of Satellite Navigation and Positioning[M].Beijing:China Communication Press,2011(高成发,胡伍生.卫星导航定位原理与应用[M].北京:人民交通出版社,2011