The Journal of The Korea Institute of Intelligent Transport Systems (한국ITS학회 논문지)

The Korea Institute of Intelligent Transport Systems (한국ITS학회)
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Experimental Field Test of GNSS Jamming Signal Monitoring Based on Cloud Data Processing Technique at National Infra-Facilities

클라우드 데이터 처리 방식을 통한 국가 주요시설에서의 GNSS 재밍 모니터링 실측 실험

  • Jin, Gwon gyu (Dept. of Department of Electrical and Computer Eng., Graduate School of Inha University) ;
  • Won, Jong hoon (Dept. of Department of Electrical Eng., Inha University)
  • 진권규 (인하대학교 대학원 전기컴퓨터공학과) ;
  • 원종훈 (인하대학교 전기공학과)
  • Received : 2020.07.22
  • Accepted : 2020.08.25
  • Published : 2020.08.31
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Abstract

Incalculable damage will be incurred if the national infrastructure that provides services using GNSS signals is affected by jamming signals. To prevent this, a nationwide GNSS jamming monitoring network is necessary to detect the occurrence of a jamming signal, determine the type, and properly localize the jammer position. In this paper, 2-D images for live GNSS signals were generated to verify the environment of the jamming signals through the presence and type of GNSS jamming signals at K-City, which are the test beds for self-driving vehicles, and Incheon International Airport. The analysis was also conducted to detect the occurrence of the jamming signals, determine the type, and measure the jamming signal strength. As a result, a CWI type of jamming signal was detected in L2 band at K-City and in L5 band at Incheon International Airport.

GNSS 신호를 이용하여 서비스를 제공하는 국가기반 시설이 재밍의 영향을 받는다면 막대한 피해가 발생할 것으로 예상된다. 이를 방지하고자 적절한 방법으로 재밍신호의 발생 감지, 종류판별 및 재밍원 위치추정을 수행하는 범국가적인 GNSS 재밍 모니터링 네트워크 구성이 필요하다. 본 논문에서는 GNSS 신호를 사용하는 자율주행 차량의 테스트베드인 K-시티와 인천 국제 공항에서 GNSS 재밍 신호의 존재 여부 및 종류를 확인하고자 실측실험을 통하여 재밍신호 환경을 확인하는 지표로 2-D 이미지를 생성하고, 분석을 통하여 재밍신호 발생 감지, 종류 판별 및 재밍신호 세기 추정을 수행한다. 그 결과, K-시티에서 L2대역에서 CWI신호가 감지되었고, 인천 국제 공항에서 L5대역에서 CWI신호가 존재하였다.

Keywords

References

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