METHOD OF DETERMINING RANGE TO FIXED RADIATION SOURCE BY MOVING DIRECTION FINDER Russian patent published in 2017 - IPC G01S3/02 

FIELD: radars.

SUBSTANCE: invention relates to methods of determining range using a direction finder arranged on a carrier moving in the direction of a radio-frequency source in order to reduce errors in determining coordinates. Said result is achieved due to that the method of determining range to a fixed radiation source by a moving direction finder is based on successive execution of angular maneuvers by the direction finder carrier with a turn-away from the radiation source and determining the range to it, additionally the angular maneuver is performed at constant angle of direction-finding α, herewith measured are covered path L₀ and change of heading angle ϕ₀ of the direction finder carrier and as per their values calculated is the initial range to the radiation source using the formula , as far as approaching measured is the change of heading angle ϕ_i of the direction finder carrier and specified is the range to the radiation source using the formula , where , N – number of measurements.

EFFECT: technical result is reduction of error in determining range to a fixed radio-frequency source from a mobile object equipped with a direction finder.

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