한국인터넷방송통신학회논문지 (The Journal of the Institute of Internet, Broadcasting and Communication)

  • 제18권4호
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  • Pages.97-104
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  • 2018
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  • 2289-0238(pISSN)
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  • 2289-0246(eISSN)
한국인터넷방송통신학회 (The Institute of Internet, Broadcasting and Communication)
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드론을 이용한 효율적인 TDOA 방향탐지 기법 연구

A Study on the Technique of Efficient TDOA Technique Direction Finding Using Drones

  • 최홍락 (충북대학교 전파통신공학과) ;
  • 하태영 (충북대학교 전파통신공학과) ;
  • 김용원 (충청지역사업평가원) ;
  • 김경석 (충북대학교 정보통신공학과)
  • 투고 : 2018.05.28
  • 심사 : 2018.08.10
  • 발행 : 2018.08.31
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초록

기존의 방향탐지는 지상에서 높은 위치에 안테나를 설치하여 신호 수신환경을 최대한 LOS(Line of Sight)의 환경으로 목표물의 위치를 탐지하지만 이러한 환경을 구성하기 위해선 높은 비용과 설치 시간이 필요하다. 군사적 용도로 사용되었던 무인항공기인 드론이 민간 상업용으로 시장이 확대되면서 활용 영역이 넓어지고 있기 때문에 본 논문에서는 방향탐지에서 드론을 활용하고자 TDOA(Time Difference of Arrival)기법을 활용하여 4대의 드론을 이용해 방향탐지 시뮬레이션을 구성하였다. 또한 추가적인 신호처리 테일러 급수와 Exact Iteractive Algorithm을 이용하여 드론과 TDOA 방향탐지 기법 기반의 시뮬레이션을 구성하였다. 시뮬레이션은 지상 방향탐지의 측정 데이터의 GPS정보를 이용하여 800MHz Path-Loss Model을 활용하여 수신 Power를 정의하였으며 TDOA기법과 테일러급수, Exact Iteractive Alogrithm을 적용하여 보정을 실시하였을 때 위치추정 성능을 분석하였다.

In the conventional direction finding, the antenna is installed at a high position on the ground to detect the position of the target with the environment of the LOS(Line of Sight) as much as the signal receiving environment. However, in order to configure such environment, high cost and installation time were required. In this paper, we use TDOA(Time Difference of Arrival) technique to utilize drones in direction finding, so that four drones can be used for directions finding simulation. Simulations based on drone and TDOA direction finding were constructed using additional signal processing Taylor series and Exact Interactive Algorithm. In the simulation, the receiving power is defined by using the 800MHz path-loss model using the GPS information of the ground direction detection, and the position estimation performance is analyzed when the TDOA technique, the Taylor series, and the Exact Interactive Alogrithm are applied.

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참고문헌

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