METHOD OF DETERMINATION OF SPEED OF OBJECT BY RADAR DISPLAY IN RADAR WITH SYNTHETIC APERTURE OF ANTENNA

摘要

FIELD: radar systems; map-making radars with synthetic aperture of antenna. SUBSTANCE: method consists in forming radar display of section of water surface with moving object in map-making mode, measurement of shift on radar display on longitudinal coordinate of ship's image relative to beginning of image of her wake, measurement of angle between longitudinal coordinate of radar display and line tangent to beginning of axis of ship's wake image and calculation of modulus of ship's speed vector by formulae. Used as line tangent to beginning of axis of ship's wake image are: line tangent to beginning of ship's wake image; bisector of angle between lines tangent to beginning of images of diverging branches of the envelope of Kelvin waves. EFFECT: enhanced reliability of determination of vector of surface ship's speed.