항공우주시스템공학회지 (Journal of Aerospace System Engineering)

  • 제17권3호
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  • Pages.16-23
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  • 2023
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  • 1976-6300(pISSN)
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  • 2508-7150(eISSN)
항공우주시스템공학회 (The Society for Aerospace System Engineering)
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군용항공기 내 민간방송 비정상 수신 현상에 대한 원인분석 및 개선

Cause Analysis and Improvement of Abnormal Reception of Commercial Broadcasting in Military Aircraft

  • 투고 : 2022.08.09
  • 심사 : 2022.09.30
  • 발행 : 2023.06.30
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⟨ 이전 논문 다음 논문 ⟩

초록

본 논문에서는 군용항공기에서 비행 중 민간방송이 간헐적으로 수신되는 비정상적인 현상에 대해 원인분석 및 조치방안을 연구하였다. 항공기의 통신시스템은 내/외부 통신의 기능을 담당하기에 비행 임무 및 훈련에 있어 매우 중요하다. 민간방송 수신으로 인해 통신 품질이 저하되면 지상 및 비행 운영에 영향을 미치게 된다. 민간방송 수신 현상에 대해서 원인분석 및 고장탐구을 통해 통신시스템 장비 중 하나인 인터컴에 다양하게 연결된 Ground Block 부분의 본딩 및 저항값의 불안정이 확인되었고, 이에 따라, 민간방송 대역 대의 수신 안테나의 역할을 하고 있음을 확인하였다. 또한, 인터컴 케이블 내부의 손상된 EMI 차폐 부분을 통해 민간방송이 수신됨을 확인하였다. 따라서, 인터컴의 Ground Block 및 케이블의 손상된 EMI 차폐 부분에 대해 조치하였고, 검증 결과도 함께 기술하였다.

In this paper, the cause analysis and improvement measures were studied for the phenomenon of abnormal reception of commercial broadcasting during flight in military aircraft. Because the communications system of the aircraft is responsible for the functions of internal and external communications, it is very important for flight missions and training. Deterioration of the communication quality due to the abnormal reception of commercial broadcasting affects ground and flight operations. Through cause analysis and fault investigation of the commercial broadcasting reception phenomenon, the role of the reception antenna in the commercial broadcasting band was confirmed according to the instability of the bonding and resistance value of the ground block part connected to the intercom, which is part of the communication system equipment. In addition, it was confirmed that commercial broadcasting was received through the damaged EMI shielding part of the intercom cable. Therefore, countermeasures were taken for the intercom ground block and damaged cable EMI shielding part, and the verification results were also described.

키워드

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