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

General Design Method of Attitude Reference for Multiple Working Modes of Agile Satellites

A working mode and general-purpose design technology, applied in space navigation equipment, space navigation equipment, space navigation aircraft, etc., can solve the problems of many program flow branches, poor versatility, and complex testing, so as to achieve less program flow branches and faster testing. Easy, Versatile Effects

Active Publication Date: 2022-04-22
SHANGHAI AEROSPACE CONTROL TECH INST
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the traditional design method of conventional satellites needs to establish multiple attitude control datums, when the number of payloads and targets is large, the attitude datum design algorithm will increase rapidly, resulting in more branches of the finalized program flow, complex testing, and poor versatility

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
  • General Design Method of Attitude Reference for Multiple Working Modes of Agile Satellites
  • General Design Method of Attitude Reference for Multiple Working Modes of Agile Satellites
  • General Design Method of Attitude Reference for Multiple Working Modes of Agile Satellites

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0037] 1. Determine the space reference vector by the target position of the given J2000.0 inertial coordinate system.

[0038] For the ground target vector, the spatial physical relationship determines the normal of the satellite's orbital plane (the pitch axis Y of the orbital coordinate system o ) will not be close to parallel with it (the included angle range is not 90±70 degrees); for the analysis of the positions of multiple space objects, if the space objects are not located in the ±20 degree cone of the normal of the satellite orbit plane, then it can be Determine the normal of the satellite’s orbital plane as the space reference vector, which is suitable for establishing attitude references for all target points; if multiple space targets are located within ±20° of the normal of the satellite’s orbital plane, it is necessary to determine another A vector perpendicular to the normal of the orbital surface, such as the flight direction of the satellite orbit (the rollin...

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 general design method for attitude references of multiple working modes of an agile satellite, which comprises the following steps: determining the space reference vector according to the spatial distribution of the satellite to the target vector, establishing the satellite target coordinate system, and obtaining the reference coordinate system to the satellite target coordinate system The attitude quaternion of the load pointing to the target is obtained, which is used as the attitude reference of the satellite attitude control. Compared with the prior art, the present invention provides a general design method of the attitude reference, and the control attitude reference applicable to multi-load and multi-target pointing tasks can be obtained by using this method. The design algorithm is simple, the program flow has few branches, and the test is easy. And strong versatility.

Description

technical field [0001] The invention relates to a general design method for attitude references in multiple working modes of an agile satellite, and belongs to the technical field of satellite attitude control. Background technique [0002] With the diversification of space missions, higher requirements are put forward for the rapid maneuverability and multi-task adaptability of the satellite attitude control system. Satellites with rapid maneuverability are called agile satellites. For agile satellites, in different tasks, it is necessary to maneuver the satellite body attitude to make its load point to different targets as required. The attitude control task of conventional satellites is generally to control the pointing of a single or at most two or three targets. The installation method and the spatial position of its target can establish their own attitude control benchmarks. For agile satellites with multi-target pointing tasks, it is not only necessary to point to mu...

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 杜宁陈文晖王世耀徐家国孙杰查理吕若宁高四宏
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