Portable Beacon System for Emergency Mountain Landing Pad

The use of satellite navigation may be insufficient to conduct search and rescue operations in mountain terrains using a helicopter. Variable weather conditions and poor visibility in fog or low clouds can prevent landing the helicopter in a place, wherefrom injured or missing people can take out. This paper presents the idea of an emergency mountain landing pad based on a portable beacon system. The developed concept uses the signal Doppler frequency (SDF) location method. We show the simulation analysis of the helicopter positioning accuracy during its landing at the emergency pad.