Proceedings of the Korean Institute of Navigation and Port Research Conference (한국항해항만학회:학술대회논문집)

Korean Institute of Navigation and Port Research (한국항해항만학회)
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Regional Integrity Analysis using modernized GPS, Galileo and SBAS

  • Han, Sang-Sul (Agency for Defense Development) ;
  • Shin, Dae-Sik (Department of Electronics Engineering, Chungnam Nat’l Univ.) ;
  • Cho, Jong-Chul (Department of Electronics Engineering, Chungnam Nat’l Univ.) ;
  • Park, Chan-Sik (School of Electrical and Computer Engineering, Chungbuk Nat’l Univ.) ;
  • Jun, Hyang-Sik (Korea Aerospace Research Institute) ;
  • Nam, Gi-Wook (Korea Aerospace Research Institute) ;
  • Lee, Sang-Jeong (School of Electrical and Computer Engineering, Chungnam Nat’l Univ.)
  • Published : 2006.10.18
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Abstract

ICAO defines performance requirements of navigation system such as accuracy, integrity, continuity and availability. The integrity is most significant performance requirement in aviation where safety of life is crucial. Many researches on this topic anticipate that GPS with SBAS or Galileo can meet APV requirements and GPS with GBAS or Galileo with GBAS will meet CAT II and III requirements. These performance expectations are based on global analysis. In this paper regional integrity analysis in Korea using various combinations of modernized GPS, Galileo and SBAS is given. The simulation results show that CAT I requirement can be met using modernized GPS and Galileo alone, however, CAT II and III are not met even augmenting SBAS because of VPL. A more efficient augmentation such as GBAS which can reduce VPL dramatically is required to meet CAT II and III in Korean region.

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