Image stabilization control system and control method for fast mirror

Abstract

The invention discloses an image stabilization control system and a control method for a fast mirror, wherein an imaging component in the control system receives an optical signal and generates an image to be measured; a photoelectric detector receives the image to be measured and converts the image to be measured into an electrical signal ;The position information processor receives the electrical signal and calculates the image offset of the electrical signal; the controller receives the image offset, calculates the target angular position required by the fast mirror according to the image offset, and obtains the current position of each fast mirror , according to the current position of the fast mirror and the target angular position, the driving amount required by the fast mirror is calculated respectively, and the driving device drives the current fast mirror to perform the swing angle movement according to the driving amount required by the current fast mirror. The present invention uses a shake detection module composed of independent imaging components, photodetectors, position information processors and controllers. When multiple imaging telescopes exist at the same time, one shake detection module can be used in common, thereby reducing the difficulty and cost of implementation.

Description

technical field [0001] The invention relates to the technical field of optical imaging, in particular to an image stabilization control system and control method for a fast mirror. Background technique [0002] Due to the influence of the stability of the satellite attitude control and the vibration generated by the operation of other equipment on the star, the pointing of the space solar telescope toward the sun will shake, which will cause the shaking of the image on the image sensor, which will have a great impact on the final imaging effect. The effect, which reduces the image resolution, is more serious for space solar telescopes that require long exposures. [0003] At present, the optical image stabilization method mainly uses the imaging image sensor as the shake detection sensor, and forms a closed-loop control system with the fast mirror to achieve image stabilization. Since the image sensor used for imaging is used to detect shaking, it may affect normal imaging,...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a fast mirror image stabilization control system and control method to solve the problem of optical image stabilization methods in the prior art. In applications where multiple imaging telescopes require image stabilization, each telescope needs to detect image shake , a technical problem with high difficulty and high cost

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