한국항공운항학회지 (Journal of the Korean Society for Aviation and Aeronautics)
- 제12권3호
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- Pages.1-12
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- 2004
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- 1225-9705(pISSN)
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- 2466-1791(eISSN)
마커를 이용한 시계비행 항공기의 비행 위험지역 회피용 경보장치
A Warning System Using Marker Beacon to Avoid Hazardous Area in VFR Mode
초록
When a straight-in landing from an instrument approach using ILS or VOR/DME is not possible or desirable because of topographical reason or bad weather, a circling approach maneuver is initiated by the pilot to align the aircraft with a runway for landing. Visual contact with the runway is necessary while conducting a circle to land maneuver. This research is to develop a new warning system based on a conventional marker system which alerts pilots to watch out for exceeding the circling approach area. The airborne system also uses the same receiver unit without any new installations. The objective of this research is to design and develop a Yagi antenna in a special form. The research includes computer simulations to determine the size of antenna radiation pattern and to compute an expected flight path in case of alarm to validate effectiveness of the system.