Abstract/Details

A behavior-based approach to multiple spacecraft formation flying


2000 2000

Other formats: Order a copy

Abstract (summary)

Multiple spacecraft flying in tight formation can be used to measure light from a distant star to reconstruct the star's image. This approach will be used to achieve imaging resolutions much finer than current technology permits. Several measurements must be taken from many different formation orientations and sizes. Crucial to the success of formation flying missions is the ability to navigate the spacecraft through several maneuvers while maintaining formation.

There are several approaches to the spacecraft formation flying problem. These include leader-following, behavior-based and virtual structure approaches. In the behavior-based approach the control laws that govern the motion of each spacecraft are derived by weighting the importance of several desired behaviors including formation keeping and goal seeking. However, the degree to which behavior-based approaches achieve goal seeking and formation keeping have never been analyzed. No sufficient conditions have been derived to ensure convergence for behavior-based approaches. Moreover, behavior-based strategies have never been applied to the coordination of spacecraft attitude. The main contribution of this dissertation is the development of the coupled dynamics approach to formation flying, a behavior-based control strategy. This approach is structured such that the control input to each spacecraft is influenced by the position and orientation of every other spacecraft. This establishes a notion of feedback missing from other formation flying strategies. In addition, the control laws are decentralized and can be implemented with limited communication.

We prove convergence to the final formation goal and provide a bound on the average pairwise formation keeping error for each maneuver. Furthermore, we implement similar output feedback control laws using passivity-based ideas.

Indexing (details)


Subject
Electrical engineering;
Aerospace materials
Classification
0544: Electrical engineering
0538: Aerospace materials
Identifier / keyword
Applied sciences; Attitude control; Feedback control; Formation flying; Spacecraft
Title
A behavior-based approach to multiple spacecraft formation flying
Author
Lawton, Jonathan Robert Tapani
Number of pages
177
Publication year
2000
Degree date
2000
School code
0022
Source
DAI-B 61/10, Dissertation Abstracts International
Place of publication
Ann Arbor
Country of publication
United States
ISBN
9780599977914, 0599977914
Advisor
Beard, Randal W.
University/institution
Brigham Young University
University location
United States -- Utah
Degree
Ph.D.
Source type
Dissertations & Theses
Language
English
Document type
Dissertation/Thesis
Dissertation/thesis number
9989772
ProQuest document ID
304592990
Copyright
Database copyright ProQuest LLC; ProQuest does not claim copyright in the individual underlying works.
Document URL
http://search.proquest.com/docview/304592990
Access the complete full text

You can get the full text of this document if it is part of your institution's ProQuest subscription.

Try one of the following:

  • Connect to ProQuest through your library network and search for the document from there.
  • Request the document from your library.
  • Go to the ProQuest login page and enter a ProQuest or My Research username / password.