OPTICAL-ELECTRONIC SEARCH AND TRACKING SYSTEM Russian patent published in 2008 - IPC F41G3/00 G01B11/26 

FIELD: transportation, physics.

SUBSTANCE: invention relates to defence of aircraft planes (AP) for jamming by infrared target-seeking devices of attacking missles (ITSD). System contains head mirror, movable along two mutually perpendicular axes and provided with aspect sensors, infrared (IR) direction-finding channel containing lens and photodetector (FD). Between the head mirror and lens at an angle to optical axis fixed flat mirror with axial hole is installed. The hole is positioned at laser emission path from transmitting laser channel. FD output and outputs of head mirror aspect sensors are connected to control-computing unit, control outputs of which are connected to head mirror actuators and to control input of transmitting laser channel. Lens is made of two components between which, in focal plane of the first on emission path component, aperture is installed which prevents diffused laser emission from getting on FD array. At the same time, IR direction-finding channel is receiving laser channel of the system. Determination of error angle between system optical axis and laser signal reflected by target in IR direction-finding channel provides improvement of accuracy of laser emission pointing at ITSD of attacking missiles. Angular-rate sensors installed on head mirror base provide input of data about flight device travel speed into control-computing unit. This data is taken into consideration when outputting control signals to head mirror actuators.

EFFECT: improvement of pointing accuracy.

3 cl, 1 dwg