GUIDANCE METHOD OF CONTROLED PROJECTILE, TELEORIENTED IN LASER RAY (VERSIONS) Russian patent published in 2017 - IPC F41G7/00 

FIELD: weapons and ammunition.

SUBSTANCE: invention relates to the aviation instrument manufacturing field of the controlled projectile guidance systems and can be used in guidance systems (GS) with teleorientation of the projectile in the laser ray. For this purpose, in comparison with the known guidance method of the controlled projectile, teleoriented in the laser ray, containing a modulated optical control field formation, using two injections lasers, which emitting areas are located perpendicular to the axes of two measuring projectile coordinates , and providing constant linear size of the R_L field on the projectile range capability, by changing the focal length of the pancratic lens, the new is that in the first embodiment of the method within a time from the launch of the projectile until , where ω_c - cut-off frequency of the projectile control system, rad /s, increase the field size upto the value (1.82,3÷)R_L, and from the time t₁ reduce it to the time point , upto the R_L value_, by means of program additional variation of changing the focal length of the pancratic lens. In the second embodiment, in comparison with the known guidance method of the controlled projectile, teleoriented in the laser ray, containing a modulated optical control field formation, using two injections lasers, which emitting areas are located perpendicular to the axes of two measuring projectile coordinates , and providing constant linear size of the R_L field on the projectile range capability, by changing the focal length of the pancratic lens and the correction in time of the transmission ratio in the control field, the new is that within a time from the launch of the projectile until , where ω_c - cut-off frequency of the projectile control system, rad /s, increase the field size upto the value (3,04,0÷) R_L and after time t₁ reduce it to the time point , upto the R_L value_, by means of program additional variation of changing the focal length of the pancratic lens, at that the correction in time of the transmission ratio in the control field at the projectile flight section untill the time point t₂ is performed different, according to each of two measuring coordinates. The application of the proposed methods options let to increase the accuracy of projectile guidance in the initial section of the flight, while ensuring the required energy potential of the laser ray on the further guidance section.

EFFECT: invention provides the extension of functionality by ensuring reasonable control field size over the entire section of the projectile flight: enlargement of the ray size upto required values at the initial section of the projectile guidance, when its deviations reaches maximum values and further gradual reduction of the size upto the value, that is acceptable to the ground portion of the flight, with the possibility of transmission ratio correction in the control field, different in the vertical and horizontal channels.

2 cl, 2 dwg

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