METHOD FOR FORMATION OF OPTICAL FIELD FOR TELEORIENTATION OF GUIDED OBJECTS AND OPTICAL SIGHT FOR ITS REALIZATION Russian patent published in 2004 - IPC

FIELD: missile optical guidance systems, applicable in guided weapon systems with teleorientation in a laser beam. SUBSTANCE: formation of the optical field is accomplished by filling of the zone in the environment of the axis with an optical flow, filling is performed by scanning of it by flat knife-edge beams deflected with a mutual time shift along the mutually perpendicular coordinate axes perpendicular to the planes of the beams, and radiation is performed by pulse trains each consisting of two pulses, the time interval between which is constant for each beam and has its value for each beam, the time intervals between pulses for each beam are changed at a deflection of the beam from the optical axis of the sight, and the sign of deviation of the mentioned time intervals from the reference values corresponding to the zero values of coordinates is changed when the beam crosses the direction coinciding with the sight optical axis, and for the horizontal flat beam generation of the pulse trains is stopped at its angular deflection down from the direction coinciding with the sight optical axis by a value exceeding α = arctg(h/Д), where h the distance between the sight optical axis and the underlying surface, and Д - the present range of the guided object. The pulse shaper of the optical sight, having a standard-frequency oscillator, "EXCLUSIVE OR" circuit, time counter, fixed storage, code-to-time converter and a channel selector switch, additionally uses a decoder and an AND circuit, the first and second inputs of the decoder are connected to the first and second inputs of the pulse shaper, the third input of the decoder is connected to the output of the pulse counter, the output of the decoder is connected to the first input of the AND circuit, whose second input is connected to the output of the code-to-time converter, and the output-to the input of the channel selector switch. EFFECT: enhanced precision of separation of the coordinated of the guided object at a formation of the optical control field due to exclusion of the reflections of the guidance beam from the underlying surface. 5 cl, 3 dwg, 1 ex