Homing head aiming positioning method and aiming positioning system

Abstract

The invention discloses a homing head aiming positioning method and aiming positioning system. The homing head aiming positioning method comprises the steps that lasers emitted by a laser device are shot into an optical system through an optical window of a homing head; a cat eye echo signal returned by the optical system is received, and the cat eye echo signal enters a photoelectric detection imaging unit for imaging after being subjected to view field compression through an off-axis compression unit, and then the imaged cat eye echo signal is output to a signal processing unit; by controlling working timing sequences of the laser device and the photoelectric detection imaging unit, original images of two adjacent frames formed by the photoelectric detection imaging unit correspond to the transmitting state and the non-transmitting state of the laser device respectively, so that a differential image of the two adjacent frames is obtained and output to the signal processing unit; andthe signal processing unit calculates the differential image by adopting a centroid capture algorithm, the gray-value centroid position of the differential image is obtained, and target information isoutput. According to the homing head aiming positioning method and aiming positioning system, the overall structure is compact, and the target position information with the precision higher than thecorresponding precision of a single pixel can be output by improving the working mode and the calculation method.

Description

technical field [0001] The invention relates to the technical field of photoelectric aiming and positioning systems, in particular to a seeker aiming and positioning method and an aiming and positioning system. Background technique [0002] At present, the main targets of airborne electro-optical countermeasure equipment are air-to-air guided missiles. This type of guided missile is mainly based on the optical guidance method. When the guided missile is launched and locked on our flying target, the field of view of its optical system is facing our target. The working method of the airborne electro-optical countermeasure equipment is to lock the guided missile during the flight phase. When the aircraft infrared warning system detects the incoming target and gives the approximate position of the target, the airborne electro-optical countermeasure equipment is transferred to the position of the target, and then the target Carry out high-precision capture and tracking, and at t...

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to solve the technical problem that the aiming accuracy of the seeker head is not enough, which leads to the difficult implementation of the airborne photoelectric countermeasure process, and provides a seeker aiming and positioning method and an aiming and positioning system

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