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Mobile phone satellite self-adaptive attitude control method

A technology of adaptive control and attitude control, applied in the direction of adaptive control, attitude control, general control system, etc., to achieve the effect of reducing jitter, high convergence accuracy, and improving autonomous adaptability

Active Publication Date: 2016-10-12
INST OF SOFTWARE - CHINESE ACAD OF SCI
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Problems solved by technology

[0009] The technology of the present invention solves the problem: because traditional small satellites are limited by computing resources, the classical feedback control method is often used for attitude control, and an adaptive attitude control method for mobile phone satellites is provided, which is mainly aimed at the gravity, residual magnetism, and aerodynamic forces existing in the space environment. In the process of controlling the attitude of mobile phone satellites, the mathematical model of the dynamic identification system changes, adaptively adjusts system parameters and control strategies, reduces the impact of environmental interference, and improves the accuracy of attitude control. stability and adaptability

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  • Mobile phone satellite self-adaptive attitude control method

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Embodiment Construction

[0030] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0031] figure 1 Shown is the flow chart of the satellite attitude control system. First of all, the satellite command will input the current control target, such as earth observation or sky observation, etc., and the command will be input to the controller to be controlled accordingly by the attitude control algorithm. After the control target is determined, attitude sensors such as sun sensors and inertial sensors begin to collect the original attitude information containing various noises and transmit it to the attitude determination mechanism. The original information is processed by the attitude determination method, and the calculated attitude Information is passed to the controller, informing the current state of the system. At this time, the controller will calculate the current control strategy according to the mathema...

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Abstract

The invention relates to a mobile phone satellite self-adaptive attitude control method. A learning algorithm is enhanced to adjust a system mathematics model and a control strategy when unpredictable changes exist in the environment, which is the key step for achieving self-adaptive attitude control. The method includes the steps that mathematical modeling is carried out on a mobile phone satellite attitude control system, change characteristics of obtained environment parameters are analyzed, and a corresponding system model modifying rule is made; then self-adaptive control based on the enhanced learning algorithm is implemented in a mobile phone satellite attitude control model. The enhanced learning algorithm is specially optimized, and performance of the self-adaptive control algorithm is further improved.

Description

technical field [0001] The invention relates to a mobile phone satellite adaptive attitude control method, which belongs to the field of automatic control. Background technique [0002] Adaptive control technology was first proposed by professors K.J.Astrom and B.Wittenmark in 1973, which means that when the mathematical model describing the law of system motion changes unpredictablely with changes in the environment, it can autonomously identify environmental changes during the operation of the control system. A technology that self-adjusts the control strategy and model parameters of the controller itself to meet the system performance requirements. It is an effective solution to overcome environmental uncertainties and improve the adaptability of control systems, and is widely used in control systems such as robots, unmanned aerial vehicles, large ships, and spacecraft. [0003] Adaptive control technology can effectively adjust the control strategy according to the envi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04G05D1/08
CPCB64G1/244G05B13/041
Inventor 赵军锁吴凤鸽许轲
Owner INST OF SOFTWARE - CHINESE ACAD OF SCI
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