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Analysis of Ionospheric Spatial Gradient for Satellite Navigation Systems

위성항법시스템 적용을 위한 전리층 지연값 기울기 연구

  • 김정래 (한국항공대학교 항공우주 및 기계공학부) ;
  • 양태형 (한국항공대학교 항공우주 및 기계공학부) ;
  • 이은성 ;
  • 전향식 (한국항공우연구원)
  • Published : 2006.08.01

Abstract

Ionospheric storms, caused by the interaction between Solar and geomagnetic activities, may degrade the differential GNSS(Global Navigation Satellite Systems) performance significantly, and the importance of the ionospheric storm research is growing for the GBAS(Ground-Based Augmentation System) and SBAS(Satellite-Based Augmentation System) development. In order to support Korean GNSS augmentation system development, a software tool for analyzing the regional ionosphere is being developed and its preliminary results are discussed. After brief description of the ionosphere and ionospheric storm, the research topics on the GBAS applications are discussed. The need for ionospheric spatial gradient analysis is described and some results on the ionospheric spatial gradient during recent storm periods are discussed.

References

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