Acta Geodaetica et Cartographica Sinica ›› 2017, Vol. 46 ›› Issue (10): 1364-1378.doi: 10.11947/j.AGCS.2017.20170349

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Research Progress of Precise Models and Correction for GNSS Ionospheric Delay in China over Recent Years

YUAN Yunbin, HUO Xingliang, ZHANG Baocheng   

  1. State Laboratory of Geodesy and Earth's Dynamics, Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan 430077, China
  • Received:2017-06-23 Revised:2017-07-19 Online:2017-10-20 Published:2017-10-26
  • Supported by:
    The National Key Research and Development Program of China (No. 2016YFB0501905);The State Key Program of National Natural Science of China(No. 41231064);The Science Fund for Creative Research Groups of the National Natural Science Foundation of China (No. 41621091);The National Natural Science Foundation of China (Nos. 41574033;41674022);LU Jiaxi International Team Program Supported by the K.C. WONG Education Foundation and CAS

Abstract: The ionosphere effects account for one of the most challenging error sources that can severely affect the performance of Global Navigation Satellite System (GNSS) applications. In the past a few decades, owing to the fact that the ground-and space-based GNSS data are rapidly growing, many researchers have developed and presented a series of theories, methods and techniques to weaken or eliminate the impact of ionospheric delay on GNSS user navigation and positioning, and achieved a number of important achievements and progress. In this paper, a brief review is made towards study on GNSS ionospheric delay correction in China over recent years, with special attention focused on accurate extraction of ionospheric delay, modeling TEC and error analysis, and real-time ionospheric delay correction methods.

Key words: GNSS, ionospheric delay, ionospheric correction, ionospheric model

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