METHOD OF CONTROL OVER AIRCRAFT FLIGHT Russian patent published in 2013 - IPC F41G3/22 

FIELD: aircraft engineering.

SUBSTANCE: boresight is generated and aligned with viewfinding line. Control system measures deviation of aircraft from boresight line in flight. Control instruction is generated to comply with said deviation. Signal corresponding to said instruction is generated and fed to aircraft actuators. Distance to boresight object is measured. Carrier relative bearings in vertical and horizontal planes caused by maneuverings, direction and magnitude of boresight deviation linear transverse velocity and range to boresight object are defined. Boresight is shifted to deviation decrease at angular velocity corrected with due allowance for scaling factor, boresight linear transverse velocity, initial range to target in increase of distance between carrier and target and, in decrease of said distance, for carrier linear velocity from launch point, carrier bearings in horizontal and vertical planes.

EFFECT: reduced error on boresight stabilisation at interferences