Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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Analysis of Jamming Effects on Geostationary Communication Satellites

정지궤도 통신위성에 대한 재밍 효과 분석

  • Sanghyun Lee ( Department of Aerospace Engineering, Republic of Korea Air Force Academy) ;
  • Jongbum Kim ( Department of Aerospace Engineering, Republic of Korea Air Force Academy) ;
  • Junha Jang (Department of Computer Science, Republic of Korea Air Force Academy, Korea) ;
  • Gilyoung Lee (Department of Electronics & Telecommunication Engineering, Republic of Korea Air Force Academy) ;
  • Taehwan Cho (Department of Electronics & Telecommunication Engineering, Republic of Korea Air Force Academy) ;
  • Myungsik Lee (Electromagnetic Warfare Technology R&D, LIG Nex1 Co. Ltd.) ;
  • Jaehoon Jung (Electromagnetic Warfare Technology R&D, LIG Nex1 Co. Ltd.) ;
  • Hyosang Moon (Electromagnetic Warfare Technology R&D, LIG Nex1 Co. Ltd.)
  • 이상현 (공군사관학교 항공우주공학과) ;
  • 김종범 (공군사관학교 항공우주공학과) ;
  • 장준하 (공군사관학교 컴퓨터과학과) ;
  • 이길영 (공군사관학교 전자통신공학과) ;
  • 조태환 (공군사관학교 전자통신공학과) ;
  • 이명식 (LIG넥스원(주) 전자기전연구소) ;
  • 정재훈 (LIG넥스원(주) 전자기전연구소) ;
  • 문효상 (LIG넥스원(주) 전자기전연구소)
  • Received : 2025.08.27
  • Accepted : 2025.10.13
  • Published : 2025.12.05
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Abstract

This study analyzes the effectiveness of ground-based uplink jamming against geostationary orbit(GEO) communication satellites and evaluates potential unintended interference on other satellite systems, including those in low Earth orbit(LEO). The analysis employs the Jamming-to-Signal Ratio(JSR), using a 10 dB threshold to assess communication degradation. Simulations were conducted for a representative GEO satellite, considering multiple ground-based jammer locations. JSR contours were analyzed as functions of transmission power and antenna gain. To examine collateral effects, the beam intersection and exposure time of a selected LEO satellite were evaluated. Results indicate that GEO jamming effectiveness is primarily influenced by transmission parameters rather than jammer placement, and that interference with LEO satellites remains minimal due to their high orbital velocity and short beam-crossing durations. This study provides insight into effective jamming design while minimizing unintentional disruption.

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Acknowledgement

본 논문은 2023년도 정부(방위사업청)의 재원으로 국방기술진흥연구소의 지원을 받아 수행된 연구임. (KRIT-CT-23-052)