Ionospheric TEC Correction for VLBI Based on GNSS Density Network

ZHOU Weili1,2,3, SONG Shuli1, LI Peijia1, ZHANG Zhibin1,3, HUANG Chao1,3, HUANG Yong1,3, WANG Guangli1

PDF(1129 KB)
PDF(1129 KB)
Journal of Deep Space Exploration ›› 2020, Vol. 7 ›› Issue (4) : 362-370. DOI: 10.15982/j.issn.2095-7777.2020.20200056
Topic:Very Long Baseline Interferometry Technology

Ionospheric TEC Correction for VLBI Based on GNSS Density Network

  • ZHOU Weili1,2,3, SONG Shuli1, LI Peijia1, ZHANG Zhibin1,3, HUANG Chao1,3, HUANG Yong1,3, WANG Guangli1
Author information +
History +

Abstract

Very long baseline interferometry(VLBI)is one of the key technologies for orbit determination of Chang'-E satellites in China's lunar exploration project. Ionospheric delay is one of the main errors of VLBI orbit determination. The ionospheric delay correction method based on GNSS inversion is given,which is used in the Chinese VLBI Network. Because there are few stations of international GNSS service(IGS)in China,in order to meet the demand of lunar exploration,more stations are will be builtin China and a new global ionospheric correction model(SHAO)is constructed. Compared with the CODE model,the maximum difference of ionospheric delay Root Mean Square Error(RMSE)on CVN stations is 1.23 ns during the ionospheric quiescence. During the active period of the ionosphere,the maximum difference of the ionospheric delay RMSE on CVN station is 16.80 ns. When the ionosphere is active,the VLBI orbit determination residual based on the SHAO model increases from 6.07 ns to 3.33 ns in S1 band,9.10 ns to 7.07 ns in S2 band,0.70 ns to 0.60 ns in X0 band compared with CODE model.

Keywords

Lunar Exploration / VLBI / ionosphere delay / GNSS

Cite this article

Download citation ▾
ZHOU Weili, SONG Shuli, LI Peijia, ZHANG Zhibin, HUANG Chao, HUANG Yong, WANG Guangli. Ionospheric TEC Correction for VLBI Based on GNSS Density Network. Journal of Deep Space Exploration, 2020, 7(4): 362‒370 https://doi.org/10.15982/j.issn.2095-7777.2020.20200056

References

[1] 欧阳自远. 我国月球探测的总体科学目标与发展战略[J]. 地球科学进展,2004,19(3):355-357
OUYANG Z Y. Scientific objectives of Chinese lunar exploration project and development strategy[J]. Advance in Earth Sciences,2004,19(3):355-357
[2] BARBOSA R C. China’s Chang’e -3 and Jade Rabbit Duo Land on the Moon[EB/OL]. (2020-6-15).http://NASAspaceflight.com.
[3] 董光亮,李海涛,郝万宏,等. 中国深空测控系统建设与技术发展[J]. 深空探测学报,2018,5(2):99-114
DONG G L,LI H T,HAO W H,et al. Development and Future of China’s Deep Space TT&C System[J]. Journal of Deep Space Exploration,2018,5(2):99-114
[4] 洪晓瑜,张秀忠,郑为民,等. VLBI技术在中国探月工程的应用[J]. 深空探测学报(中英文),2020,7(4):321-331.
HONG X Y,ZHANG X Z,ZHENG W M,et al. Application of VLBI technology in China Lunar exploration project[J]. Journal of Deep Space Exploration,2020,7(4):321-331.
[5] LANYI G. Total ionospheric electron content calibration using series gps satellite data[J]. Telecommunications and Data Acquisition Report,SEE N86-28275 19,1986,32:1-12
[6] 李子申,王宁波,李敏,等. 国际GNSS服务组织全球电离层TEC格网精度评估与分析[J]. 地球物理学报,2017,60(10):3718-33729
LI Z S,WANG N B,LI M,et al. Evaluation and analysis of the global ionospheric TEC map in the frame of international GNSS services[J]. Chinese Journal of Geophysics,2017,60(10):3718-33729
[7] 欧洲定轨中心全球电离层修正模型[DB/OL].(2020-6-15). http://ftp.aiub.unibe.ch/.
[8] IGS. IGS data[DB/OL].(2020-6-15).http://www.igs.org/.
[9] CMONOC. CMONOC data[DB/OL].(2020-6-15). http://www.neiscn.org/.
[10] ZHOU W L,SONG S L,CHEN Q M,et al. Determination of nighttime VTEC average in the Klobuchar ionospheric delay model[J]. Geodesy and Geodynamics,2018,9:175-182
[11] SONG S L,CHENG N,XIE H,et al. Adaptability of GPS/BDS broadcast ionospheric models to solar activities[J]. Advance in Space Research,2019,63:2867-2876
[12] CHENG N,SONG S L,XIE H. Investigation of Solar flares impact on GPS/BDS/GALILEO broadcast ionospheric models[J]. Radio Science,2019,54:91-103
[13] YANG Z,MORTON J Y,ZAKHARENKOVA I,et al. Global view of ionospheric disturbances impacts on kinematic GPS Positioning solutions during the 2015 St Patrick’s day storm[J]. Journal of Geophysical Research:Space Physics,2020,125(7):A02768110.1029/2019JA027681
[14] 黄勇,李培佳,樊敏,等. 基于地基测量数据的地月L2点探测器轨道确定[J]. 中国科学:物理学 力学 天文学,2018,48(7):079501
HUANG Y,LI P J,FAN M,et al. Orbit determination of CE-5T1 in Earth-Moon L2 libration point orbit with ground tracking data[J]. Scientia Sinica Physica,Mechanica & Astronomica,2018,48(7):079501
PDF(1129 KB)

Accesses

Citations

Detail

Sections
Recommended

/