Journal of Advanced Navigation Technology (한국항행학회논문지)

The Korean Navigation Institute (한국항행학회)
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Regional Alternative Navigation Using HALE UAV, Pseudolite & Transceiver

고고도 장기체공 무인기와 의사위성/트랜시버를 활용한 국지적 대체항법에 관한 연구

  • Choi, Min-woo (Department of Mechanical & Aerospace Engineering and IAAT, Seoul National University) ;
  • Yu, Sun-Kyoung (Department of Mechanical & Aerospace Engineering and IAAT, Seoul National University) ;
  • Kim, O-Jong (Department of Mechanical & Aerospace Engineering and IAAT, Seoul National University) ;
  • Kee, Chang-Don (Department of Mechanical & Aerospace Engineering and IAAT, Seoul National University) ;
  • Park, Byung-Woon (Department of Mechanical & Aerospace Engineering, Sejong University) ;
  • Seo, Seung-Woo (Agency for Defense Development) ;
  • Park, Jun-Pyo (Agency for Defense Development)
  • 최민우 (서울대학교 기계항공공학부, 항공신기술연구소) ;
  • 유선경 (서울대학교 기계항공공학부, 항공신기술연구소) ;
  • 김오종 (서울대학교 기계항공공학부, 항공신기술연구소) ;
  • 기창돈 (서울대학교 기계항공공학부, 항공신기술연구소) ;
  • 박병운 (세종대학교 기계항공우주공학부) ;
  • 서승우 (국방과학연구소) ;
  • 박준표 (국방과학연구소)
  • Received : 2015.10.29
  • Accepted : 2015.12.10
  • Published : 2015.12.30
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Abstract

Global navigation satellite systems (GNSS) is operating widely in civil and military area. GNSS signals, however, can be easily interfered because its signal is vulnerable to jamming. Thus, a sort of backup or alternative system is needed in order that the navigation performance is assured to a certain degree in case of GNSS jamming. In order to suggest a series of backup or alternative system of regional navigation, in this paper, we introduced a high altitude long endurance unmanned aerial vehicle (HALE UAV) with pseudolites using inverted GPS and transceiver system. We simulated the positioning error of the regional navigation system using HALE UAV with inverted GPS or transceivers concepts. We estimated the position error of HALE UAV calculate user position errors based on the position error of HALE UAV and general pseudorange error.

GNSS (global navigation satellite systems)은 민 군 차원에서 매우 다양한 분야에 활용되고 있다. 그러나 GNSS 신호는 재밍에 상당히 취약해 쉽게 방해 받을 가능성이 상존하기에 GNSS을 사용 불가능할 시에도 일정 수준의 항법성능을 보장하여 주는 일련의 백업 또는 대체항법 시스템이 필요하다. 본 논문에서는 의사위성 또는 트랜시버를 장착한 고고도 장기체공 무인기(HALE UAV; high altitude long endurance unmanned aerial vehicle)의 개념을 도입하여 국지적인 지역에서 백업 또는 대체항법 시스템을 제안하고자 하였다. 제안된 대체항법 시스템을 기반으로 고고도 장기체공 무인기의 위치 오차를 추정하고, 이를 바탕으로 최종적인 사용자 위치정확도를 산출하여 본 연구에서의 국지적 대체항법의 성능을 나타내었다.

Keywords

References

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