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Control method for increasing disturbance inhibition capability of quick reflector stabilized platform

A stable platform and disturbance suppression technology, which is applied in the direction of navigation through speed/acceleration measurement, can solve the problems of low sampling rate, delay characteristic sensor data noise, and insufficient disturbance suppression ability, so as to improve the disturbance suppression ability and reduce disturbance The effect of suppressing residuals and clear thinking

Inactive Publication Date: 2017-03-08
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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Problems solved by technology

However, due to the low sampling rate, delay characteristics and sensor data noise of CCD, when the system is subjected to uncertain external disturbances, its disturbance suppression ability is still insufficient.

Method used

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  • Control method for increasing disturbance inhibition capability of quick reflector stabilized platform
  • Control method for increasing disturbance inhibition capability of quick reflector stabilized platform
  • Control method for increasing disturbance inhibition capability of quick reflector stabilized platform

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Embodiment Construction

[0023] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0024] as attached figure 1 Shown is a control block diagram of a control method to improve the disturbance suppression ability of the fast mirror stabilized platform, which includes the disturbance observation compensator inner loop, acceleration loop, speed loop, and CCD position loop; using the disturbance observation compensator control method and the traditional The combination of the three closed-loop control methods further uses the observation of the acceleration to estimate the feedforward, thereby improving the disturbance suppression ability of the system. The specific implementation steps of adopting described device to realize feed-forward control method are as follows:

[0025] Step (1): Install gyroscopes and accelerometers on the two deflection axes of the fast mirror stabilized platform to sense the angular vel...

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Abstract

The invention discloses a control method for increasing disturbance inhibition capability of a quick reflector stabilized platform. By aiming at the problems that disturbance inhibition capability of the quick reflector stabilized platform is insufficient, and more precious and stable control requirement cannot be satisfied, After acceleration, speed and position three loops are closed, the disturbance acceleration is observed and estimated by using a disturbance observation compensator, then feedforward compensation is carried out, so that a part of disturbance moment is offset, and the stable capability of the stabilized platform is increased. The method optimizes the system from control algorithm, addition of a sensor is not required, original characteristic of the system is guaranteed, cost is saved; simultaneously, the method has the advantages of intelligible thinking, simple structure, and easy realization of engineering, and can perform the advantages under condition of difficult measurement of disturbance.

Description

technical field [0001] The invention belongs to the field of inertial stability control, and in particular relates to a control method for improving the disturbance suppression ability of a fast mirror stable platform, which is mainly used for isolating base disturbances and improving the tracking performance of a photoelectric tracking device for a motion platform. Background technique [0002] In photoelectric tracking equipment, due to the characteristics of small inertia and high bandwidth, fast mirrors have been widely used to realize fine tracking control loops. The photoelectric tracking equipment on the moving carrier will be affected by carrier disturbance, which will lead to a significant drop in tracking performance. For example, in inter-satellite optical communication equipment, the high bandwidth jitter of the satellite will reduce the stability of the communication link. Using the fast mirror platform to stabilize and align the optical path is an effective mea...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/18
CPCG01C21/18
Inventor 邓超毛耀田竟任维刘琼
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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