Distress radiolocation method and system

Details Distress radiolocation method and system Distress radiolocation method and system

G - Physics

01

S

354/25, 343/84

G01S 5/02 (2006.01) G01S 5/00 (2006.01) G01S 5/14 (2006.01)

Patent

CA 1203607

DISTRESS RADIOLOCATION METHOD AND SYSTEM ABSTRACT A dedicated distress radiolocation system combines direction-finding techniques with calculations based on signal strength to precisely locate a distress transmission and effect rescue of the person or property in distress. The system is capable of locating a distress transmission solely on the basis of a short duration pulse; however, for identification purposes and for communication reliability a series of pulses is transmitted. The system includes distress transmitters, a plu- rality of slave repeater units at known locations to receive the distress transmission and report their signal strength to a central station, a central station to calculate the distress transmitters location based on the measured signal strengths and the known locations of the repeater units and to dispatch a rescue unit, and rescue units equipped with direction finding equipment to approach the distress transmitter. Most actions of the system are undertaken automatically.

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