Spacecraft guaranteed-performance attitude control method independent of neural network approximation

A technology of attitude control and neural network, applied in attitude control, non-electric variable control, control/regulation system, etc., can solve problems such as external interference measurement noise, uncertainty, and influence of spacecraft attitude control

Active Publication Date: 2020-10-13
CENT SOUTH UNIV
View PDF7 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a spacecraft attitude control method that does not rely on neural network approximation. Its purpose is to solve the system uncertainty, external inte

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Spacecraft guaranteed-performance attitude control method independent of neural network approximation
  • Spacecraft guaranteed-performance attitude control method independent of neural network approximation
  • Spacecraft guaranteed-performance attitude control method independent of neural network approximation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0071] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0072] The present invention aims at the system uncertainty, external interference and measurement noise existing in the existing spacecraft itself, and the problem that the actuator cannot always generate the ideal control torque and affect the attitude control of the spacecraft, and provides a neural network independent Approximate guaranteed performance attitude control method for spacecraft.

[0073] Such as Figure 1 to Figure 6 As shown, the embodiment of the present invention provides a kind of space vehicle guaranteed energy attitude control method that does not rely on neural network approximation, comprises:

[0074] Step 1, taking the parameter uncertainty, unmodeled dynamics and external disturbances in the spacecraft mathematical model as t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a spacecraft guaranteed-performance attitude control method independent of neural network approximation. The method comprises the following steps: 1, taking parameter uncertainty, unmodeled dynamics and external disturbance in a spacecraft mathematical model as total disturbance, and establishing a dynamic mathematical model and a kinematics mathematical model of a spacecraft attitude error control system according to the total disturbance; 2, introducing a preset performance function into the dynamic mathematical model and the kinematic mathematical model of the spacecraft attitude error control system to constrain steady-state and transient-state performance of an attitude loop tracking error of the spacecraft; and 3, designing a linear expansion high-gain observeraccording to the dynamic mathematical model and the kinematics mathematical model of the spacecraft attitude error control system, and obtaining the state and the total disturbance estimation value of the spacecraft attitude error control system. Under the condition of not depending on neural network estimation, tracking control over the spacecraft attitude is achieved, the requirements for stability and precision of attitude tracking are met, and good robustness is achieved.

Description

technical field [0001] The invention relates to the technical field of attitude control of spacecraft, in particular to a method for controlling energy-guaranteed attitude of spacecraft that does not rely on neural network approximation. Background technique [0002] Since the former Soviet Union launched the world's first artificial satellite on October 4, 1957, the scope of human activities has gradually expanded, starting a journey of exploration into unknown space. The competition between countries promotes the rapid development of aerospace technology, and related research results also accelerate the pace of social progress and greatly facilitate people's lives. Although my country's aerospace industry started relatively late, it has still made great achievements under relatively difficult conditions, thus realizing the leap of technology from scratch to excellence. On April 24, 1970, the Dongfanghong-1 satellite was successfully launched, ushering in a new era in Chin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G05D1/08
CPCG05D1/0825
Inventor 魏才盛周亮杨思亮吴瑕戴明哲桂明臻殷泽阳
Owner CENT SOUTH UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap