FIELD: radio detection and ranging, applicable for range finding. SUBSTANCE: the method consists in radiation of pulse signals at repetition frequency F1, reception of each signals and measurement of their Doppler frequency f1, subsequent radiation of linear-modulated signal of carrier frequency with slope 3, reception of linear-modulated echo signal, measurement of the difference of frequencies f2 between the radiated and receipted linear-modulated signals, measurement of the delay of echo pulse signals t1 at the repetition frequency, radiation of pulse signals at repetition frequency F2 equal to 
, reception of each signals and measurement of their delay t2, and the range is determined by formula: 
. EFFECT: enhanced accuracy of range finding. 1 cl, 1 dwg
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