Closed-Loop Control of a Satellite in an Unstable Periodic Orbit about L3.

Abstract

A stable Luenberger Observer was developed to reconstruct the error states in modal coordinates for a satellite in a periodic orbit about the Earth-Moon Lagrangian point, L3. Observer pole placement for the third root was found to be linear with applied gain. Convergence of the observer estimate to the true state vector was rapid in all cases, but depended upon the initial conditions considered. The addition of the observer did not impede the long-term behavior of the controller in stabilizing the orbit. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1981
Accession Number
ADA111147

Entities

People

  • Felicia C. Vass

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Air Force
  • Artificial Satellites
  • Astronautics
  • Celestial Mechanics
  • Computational Science
  • Control Systems
  • Convergence
  • Differential Equations
  • Eigenvalues
  • Engineering
  • Equations
  • Equations Of Motion
  • Measurement
  • Observers
  • Orbits
  • Solar System
  • Spacecraft

Fields of Study

  • Physics

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Educational Psychology
  • Space Exploration and Orbital Mechanics.

Technology Areas

  • Space
  • Space - Orbital Debris
  • Space - Spacecraft Maneuvers