Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A Shortest Path Attitude Maneuvering Control Method for Satellite Around Space Axis

A technology of the shortest path and space axis, applied in the direction of motor vehicles, space navigation equipment, space navigation aircraft, etc., can solve the problems of cumbersome rotation control process, shorten the attitude control process, simplify the attitude calculation, and realize the limitation Effect

Active Publication Date: 2019-03-01
SHANGHAI AEROSPACE CONTROL TECH INST
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the time required for maneuvering at a large angle is relatively long, and the rotation control process is cumbersome; in addition, if the attitude measurement device on the star is a star sensor, the direct measurement reflects the attitude quaternion of the star relative to the reference coordinate system, If you use Euler angles for attitude maneuvering, you need to solve the reference system, which brings additional calculations

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
  • A Shortest Path Attitude Maneuvering Control Method for Satellite Around Space Axis
  • A Shortest Path Attitude Maneuvering Control Method for Satellite Around Space Axis
  • A Shortest Path Attitude Maneuvering Control Method for Satellite Around Space Axis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056] The present invention will be further elaborated below by describing a preferred specific embodiment in detail in conjunction with the accompanying drawings.

[0057] Such as figure 2 As shown, a shortest path attitude maneuver control method for satellites around the space axis can simultaneously adapt to the recapture control of the earth in the security mode against the sun and the attitude maneuver control of any target, as shown in image 3 As shown, the shortest path attitude maneuver control method includes the following steps:

[0058] S1. A quaternion is used to describe the current attitude and the target attitude of the satellite respectively.

[0059] (1) Using quaternion to describe the current attitude of the satellite includes:

[0060] Integrate the initial value of the attitude quaternion according to the quaternion kinematics equation to obtain the gyro integral quaternion. If the star sensor is valid, the star sensor quaternion will replace the gyr...

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 discloses a shortest path attitude maneuver control method for a satellite around a space axis, which comprises the following steps: respectively describing the current attitude and the target attitude of the satellite by adopting quaternions; Calculate the deviation quaternion, and configure the deviation quaternion as the attitude information for control; calculate the angular velocity of the satellite relative to the orbital coordinate system according to the angular velocity measured by the gyro and the current attitude quaternion of the satellite, and configure the angular velocity as the control Angular velocity information is used; according to the attitude information for control and the angular velocity information for control, the command rotational speed of the flywheel is calculated to complete the attitude maneuver control. The present invention is based on the attitude maneuver control idea of ​​the shortest path around the space axis, describes the target attitude reference by quaternion, and simplifies the attitude for control, and designs a flywheel attitude maneuver control algorithm, which is suitable for sun orientation and ground orientation Attitude maneuvers, attitude maneuvers around arbitrary space axes, etc.

Description

technical field [0001] The invention relates to the technical field of satellite attitude maneuver control, in particular to a shortest path attitude maneuver control method for a satellite around a space axis. Background technique [0002] In the scheme design of the satellite attitude and orbit control analysis system, the stellar solar cell array is often controlled to be irradiated to face the sun. Can be used as a safe mode for satellite attitude. In the sun-oriented safety mode, if the sensor is available and the energy meets the requirements, it will automatically switch from the sun-oriented safety mode to the conventional ground-oriented control mode to ensure the normal operation of the load. Due to the arbitrariness of the attitude of the security mode towards the sun relative to the orientation towards the ground, the star is required to have the large-angle maneuverability of any target attitude, such as figure 1 shown. [0003] The satellite platform in the ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/24
CPCB64G1/24B64G1/245
Inventor 杜宁陈占胜尹海宁陈璟朱虹
Owner SHANGHAI AEROSPACE CONTROL TECH INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com