METHOD OF HOMING ELEMENT GUIDANCE IN CONDITIONS OF LASER ACTION Russian patent published in 2024 - IPC F41G7/22 F42B15/01 

FIELD: weapons and ammunition.

SUBSTANCE: invention relates to systems for fire destruction of objects with controlled ammunition. Method of homing element guidance in conditions of laser action consists in reception of optical radiation of target by optoelectronic coordinator (OEC) of homing ammunition, measuring output signals of a photodetector of optical radiation of a target OEC of a homing ammunition, homing ammunition flight direction and target direction angular mismatch parameters determination by their values, correction by their values of the flight trajectory of the homing ammunition to the target and the additional use of a photodetector array (PDA) of the destructive laser radiation (DLR) of a circular type, which is placed perpendicular in a plane perpendicular to the optical axis of the optical-electronic coordinator, at the maximum possible distance from the optical axis of the OEC and at the minimum possible distance from the focal plane of the OEC, the implementation of the PDA reception of the radiation of the damaging laser radiation source scattered sideways by the gaseous medium, determining, when detecting laterally scattered radiation of a source of damaging laser radiation, the coordinates of the location of the photosensitive elements of the PDA, signal at the output of which exceeds the threshold value, and monitoring the operability of the photodetector of optical radiation of the target. In case of its inoperability, the flight trajectory of the homing ammunition is corrected to the source of damaging laser radiation by values of parameters of angular mismatch of direction of flight of self-guided ammunition and direction to source of damaging laser radiation, obtained using PDA. PDA centre of the destructive radiation DLR is placed on the optical axis of the OEC, and the field of view of each photosensitive element (PSE) is oriented to the centre of the PDA. Values of output signals of PSE are measured and coordinates of location of PSE with maximum value of output signal are determined, as well as coordinates of PSE location opposite to PSE with maximum output signal value. Using ratio of values of output signals of PSE with maximum value and opposite to it, their coordinates of location, values of specified radius of PDA of circular type, given value of absorption coefficient DLR by gaseous medium OEC and spatial parameters of installation of PDA of circular type in OEC, parameters of angular mismatch of direction of flight of self-guided ammunition and direction to DLR source are determined.

EFFECT: higher efficiency of using homing ammunition.

1 cl, 2 dwg