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Seeker aiming and positioning method and aiming and positioning system

A positioning method and technology of a positioning system are applied in the field of photoelectric aiming and positioning systems, which can solve the problems of difficult implementation of airborne photoelectricity and insufficient aiming accuracy of the seeker, so as to improve the working performance of the whole machine, improve the accuracy of target position, and improve the rules of target shape. Effect

Active Publication Date: 2020-11-24
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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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

Method used

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  • Seeker aiming and positioning method and aiming and positioning system

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Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0040] refer to figure 1As shown, the embodiment of the present invention provides a seeker aiming and positioning system, including: a laser emitting unit 1, a timing control unit 2, an off-axis compression unit 3, a photoelectric detection imaging unit 4, a signal processing unit 5, and a laser emitting unit 1 is used to emit laser light to the optical system in the optical window of the guide head; the off-axis compression unit 3 is used to compress the field of view of the cat’s eye echo signal returned by the optical system, and the incident optical axis direction of the off-axis ...

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Abstract

The invention discloses a seeker aiming and positioning method and an aiming and positioning system, wherein the method comprises: sending laser light through the optical window of the seeker into the optical system; receiving the cat's eye echo signal returned by the optical system, After the axial compression unit compresses the field of view, it enters the photodetection imaging unit for imaging and outputs to the signal processing unit; wherein, by controlling the working sequence of the laser and the photodetection imaging unit, the original images of two adjacent frames formed by the photodetection imaging unit Corresponding to the emission state and non-emission state of the laser, respectively, to obtain the difference image of two adjacent frames, and output it to the signal processing unit; the signal processing unit uses the centroid capture algorithm to calculate the difference image, and obtains the gray value centroid of the difference image position, output target information. The present invention has a compact overall structure, and can output target position information whose accuracy is higher than that of a single pixel by improving the working mode and 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F41H11/02F41H13/00F41G3/00
CPCF41G3/00F41H11/02F41H13/0056
Inventor 周嘉祺陈兆兵庄昕宇王兵李冠楠
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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