한국항행학회논문지 (Journal of Advanced Navigation Technology)

  • 제17권6호
  • /
  • Pages.616-624
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  • 2013
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  • 1226-9026(pISSN)
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  • 2288-842X(eISSN)
한국항행학회 (The Korean Navigation Institute)
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다종 전파교란원 위치추정을 위한 식별 및 측정치 획득 알고리즘 설계

Design of Identification and Measurements Acquisition Algorithm for Multi-Type Jammer Localization

  • 강재민 (한국항공우주연구원 위성항법팀) ;
  • 임덕원 (한국항공우주연구원 위성항법팀) ;
  • 허문범 (한국항공우주연구원 위성항법팀) ;
  • 남기욱 (한국항공우주연구원 위성항법팀)
  • Kang, Jae-Min (Satellite Navigation Team, Korea Aerospace Research Institute) ;
  • Lim, Deok-Won (Satellite Navigation Team, Korea Aerospace Research Institute) ;
  • Heo, Moon-Beom (Satellite Navigation Team, Korea Aerospace Research Institute) ;
  • Nam, Gi-Wook (Satellite Navigation Team, Korea Aerospace Research Institute)
  • 투고 : 2013.10.21
  • 심사 : 2013.12.30
  • 발행 : 2013.12.30
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초록

전파 교란신호가 발생할 경우, GPS 기반의 정밀위치제공시스템에 오작동을 일으킬 수 있으며 특히, 항공분야에서는 더 심각한 피해가 발생할 수 있다. 하나의 전파교란원에 대한 대응 기법이나 위치 추정 기법의 연구결과는 잘 알려져 있으나, 다수의 전파교란원이 다양한 형태의 신호를 송출할 경우에는 대응 및 위치 추정이 어렵다. 따라서 본 논문에서는 다수의 전파위협원이 CW, DSSS, SCW 형태의 신호를 송출할 경우에 위치 추정을 수행할 수 있도록 하기 위하여 신호 식별 및 측정치 획득 방법을 제안한다. 또한 제안한 방법을 검증하기 위하여 MATLAB을 이용하여 모의실험을 수행하였다. 실험 결과로부터 제안한 방법은 CW, DSSS, SCW 형태의 교란신호를 정상적으로 식별하고 측정치를 정확하게 획득하는 것을 검증하였다.

When jamming signal is received, there would be malfunctions in GPS-based precise location systems. Especially, in aviation fields, these malfunctions may lead to more serious damages. Naturally, there are some research results about the prevention or location method for one jammer, but it is hard to identify and obtain measurements when multiple and various type signals are received. Therefore, we propose a method of identification and measurements acquisition algorithm in order to localize the multiple jammers which transmit CW, DSSS and SCW type signals. Also, a computer simulation is carried out so as to validate the feasibility of the proposed method by using MATLAB. From the simulation results, it is confirmed that the proposed method successfully identified the signal type and acquired the measurements of CW, DSSS and SCW type signals.

키워드

참고문헌

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