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Control method of vibratory control device based on rectification of quick tilting mirror

A control method and technology of tilting mirror, applied in the field of tracking control, to achieve the effect of easy engineering implementation, simple control algorithm, and improved vibration suppression ability

Active Publication Date: 2012-07-04
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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Problems solved by technology

However, high control bandwidth is always limited by various aspects, such as delay, mechanical structure

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  • Control method of vibratory control device based on rectification of quick tilting mirror
  • Control method of vibratory control device based on rectification of quick tilting mirror
  • Control method of vibratory control device based on rectification of quick tilting mirror

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[0018] The present invention will be described below in conjunction with the accompanying drawings and specific embodiments, and those skilled in the art can understand the functions and advantages of the present invention according to the content disclosed in this specification.

[0019] Such as figure 1 As shown, the vibration control device based on fast tilt mirror correction: consists of fast tilt mirror 3, servo controller 2, angular displacement sensor 1, beacon light source 5, image sensor (such as CCD, four-quadrant, etc.) 4 and platform 6. Wherein the fast tilting mirror 3, the angular displacement sensor 1, and the image sensor 4 are installed on the same platform. The beacon light source 5 is used to simulate the point of an arbitrary image in space. The purpose of the closed-loop control of the fast tilting mirror 3 is to eliminate vibration, so as to realize high-definition image stabilization of the beacon light source 5 in the image sensor 4 . The vibration i...

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Abstract

The invention discloses a control method of a vibratory control device based on the rectification of a quick tilting mirror, which is mainly used for suppressing the vibration of a platform and realizing the stabilization of an image with high definition. The invention particularly relates to a quick tilting mirror, a servo controller, an angular displacement sensor, a beaconing light source, an image sensor (such as a charge coupled device (CCD), four quadrants and the like) and a platform. The control method is compound control based on disturbance as follows: a feedback loop contains high-bandwidth position feedback and tracking feedback; and a vibratory signal of the platform, which is detected by the angular displacement sensor, is introduced to the position of an input node of the high-bandwidth position feedback after the vibratory signal is processed by a low-pass filter. According to the control method of the vibratory control device based on the rectification of the quick tilting mirror, a convenient sensor control mode is adopted, the vibration is effectively suppressed, and the image stabilization of high definition is realized. The control method of the vibratory control device based on the rectification of the quick tilting mirror has the advantages that the structure is simple, stable and reliable, and engineering is easy to realize.

Description

technical field [0001] The invention relates to the field of tracking control, in particular to a control method of a vibration control device based on fast tilt mirror correction, which is mainly used to suppress the vibration of a platform and realize high-definition image stabilization. Background technique [0002] It is a very meaningful work to use the fast tilting mirror to suppress the vibration of the platform and obtain high-definition images. There are many public documents such as Chinese patent (200610089314.9) and papers (adaptive filler techniques for optical beam jitter control, SPIE, Vol.7338, 2009.), (Fine Pointing Control for Optical Communications.IEEE, 2001), etc. have made corresponding reports. The relevant control methods given in the literature are mainly divided into two aspects: 1) improving system design, reducing system delay, and increasing tracking bandwidth; 2) establishing an adaptive control algorithm, through the least mean square of the e...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B11/42
Inventor 唐涛田竟蒋晶任戈黄永梅
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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