METHOD FOR DETERMINING ERROR OF RADIO RANGE FINDER Russian patent published in 1995 - IPC

FIELD: radio engineering. SUBSTANCE: method involves installation of measuring unit and repeater of range finder under check at certain distance from one another, introduction of source value of phase shift by means of repeater phase shifter, measurement of distance between measuring unit and repeater wherein phase shifter of the latter is used to successively set digital values of phase shift from 0 to π, recording of changes in distance by means of measuring unit, displacement of repeater relative to measuring unit through distance ln, and setting in succession digital values of phase shift from 0 to 2p by means of repeater phase shifter; measuring unit is used now to record changes in distance; error is found as difference between distance measurement results for two positions of repeater relative to measuring unit. EFFECT: improved accuracy of error determination. 2 dwg