Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography (한국측량학회지)

Korean Society of Surveying, Geodesy, Photogrammetry and Cartography (한국측량학회)
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MEASUREMENT AND SIMULATION OF EQUATORIAL IONOSPHERIC PLASMA BUBBLES TO ASSESS THEIR IMPACT ON GNSS PERFORMANCE

  • Tsujii, Toshiaki (Aviation Program Group, Japan Aerospace Exploration Agency) ;
  • Fujiwara, Takeshi (Aviation Program Group, Japan Aerospace Exploration Agency) ;
  • Kubota, Tetsunari (Aviation Program Group, Japan Aerospace Exploration Agency) ;
  • Satirapod, Chalermchon (Department of Survey Engineering, Chulalongkorn University) ;
  • Supnithi, Pornchai (Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang) ;
  • Tsugawa, Takuya (Applied Electromagnetic Research Institute, National Institute of Information and Communications Technology) ;
  • Lee, Hungkyu (Department of Civil Engineering, Changwon National University)
  • Received : 2012.10.23
  • Accepted : 2012.12.17
  • Published : 2012.12.31
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Abstract

Ionospheric anomaly is one of the major error sources which deteriorate the GNSS performance. In the equatorial region, effects of the ionospheric plasma bubbles are of great interest because they are pretty common phenomena, especially in the period of the high solar activity. In order to evaluate the GNSS performance under circumstance of the bubbles, an ionospheric scintillation monitor has been developed and installed in Bangkok, Thailand. Furthermore, a model simulating the ionospheric delay and scintillation due to the bubbles has been developed. Based on these developments, the effects of the simulated plasma bubbles are analyzed and their agreement with the real observation is demonstrated. An availability degradation of the GPS ground based augmentation system (GBAS) caused by the bubbles is exampled in details. Finally, an integrated GPS/INS approach based on the Doppler frequency is proposed to remedy the deterioration.

Keywords

References

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  1. Statistical Analysis of Separation Distance Between Equatorial Plasma Bubbles Near Suvarnabhumi International Airport, Thailand pp.21699380, 2018, https://doi.org/10.1029/2018JA025612