DISTANCE-MEASURING METHOD FOR DETECTION OF RADIO STATION USING DIFFERENCE BETWEEN TIMES OF SIGNAL ARRIVAL TO RECEIVERS Russian patent published in 1997 - IPC

FIELD: bearing finding equipment, in particular, rescue services for ship, planes and other vehicles in distress. SUBSTANCE: method involves measurement of arrival times t_a, t_b and t_c by means of at least three receivers which are located on straight line, detection of delay time for radio signal in two receivers with respect to third one, calculation of traveling distance for radio signal to receivers using equation Δl_i= c•Δt_i,, where c is speed of light, Δt_i is delay time for arrival of signal to receiver. Distances from receivers to position of radio station are calculated using equation given in invention specification. EFFECT: increased precision. 3 dwg