Research on Real Time Reconstruction Technology of Regional Ionospheric Model with GNSS Data Integrated

ABSTRACT

On the basis of the International Reference Ionosphere (IRI) model, the reconstruction of the ionospheric model is realised by optimising the key parameters of the sunspots with the GNSS data integrated. The accuracy of the reconstruction model is verified through Global Navigation Satellite System (GNSS) data. Results show that the total electron content (TEC) calculated by the reconstructed model is significantly improved, and its accuracy is higher than that provided by the IRI model when elevation angle is above 5°. It suggests that the method given in this paper has strong scalability.

KEYWORDS:

• Ionospheric refraction error
• international reference ionosphere
• global navigation satellite system
• total electron content
• China’s Beidou system
• ionospheric model reconstruction

Disclosure statement

No potential conflict of interest was reported by the authors.

Author contributions

L. K., H. W., X. D. and D. S. initiated the research. Under supervision of Q. Z. and Z. Y., L. K. performed the analysis and wrote the manuscript. Q. Z. and Z. Y. revised the manuscript. All authors read and approved the final version of the manuscript.

Additional information

Funding

This work was supported by the National Natural Science Foundation of China (NSFC) under Grants [61971385].