SYSTEM FOR DETECTION AND LOCATION OF HUMAN SUFFERING A DISTRESS ON WATER Russian patent published in 2001 - IPC

FIELD: survival aids, applicable for detection of a human suffering a distress on water and his location. SUBSTANCE: system has a life vest with light sources and transmitters with transmitting antennas located in the chest and back regions, as well as equipment installed on board the helicopter. The helicopter-borne equipment has receiving antennas 23-27, mixers 30-33,40, amplifiers 35-38 of the first intermediate frequency, first and second local oscillators 28 and 29, amplifier 41 of the second intermediate frequency, multipliers 44-47,52,53, narrow-band filters 48-51,54,55, amplitude detector 42, recording unit 43, delay lines 56 and 57, phase detectors 58 and 59, phase-meters 60-63, motor 64, frequency standard assembly 65. EFFECT: enhanced reliability of detection and location of a human suffering a distress on water. 4 dwg