Approximation in Optimal Control and Identification of Large Space Structures.

Abstract

This project dealt with the application of distributed system theory to control and identification of large flexible space structures. The main analytical tools were control theory for infinite dimensional systems and approximation theory for distributed systems. Both theoretical results and practical numerical approximation schemes were developed. The research dealt with both continuous-time and discrete-time control and identification. In each case, an ideal infinite dimensional compensator was used to guide the design of implementable finite dimensional compensators. Most of the research dealt with optimal linear-quadratic control theory, but significant preliminary results were obtained on infinite dimensional autoregressive-moving-average models of distributed systems. These models will be used in adaptive control and identification of flexible space structures. Subject terms: Control of space structures; distributed system theory; infinite dimensional control theory; approximation theory.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1985
Accession Number
ADA150323

Entities

People

  • J. S. Gibson

Organizations

  • University of California, Los Angeles

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Classification
  • Closed Loop Systems
  • Compensators
  • Control Systems
  • Eigenvalues
  • Engineering
  • Equations
  • Estimators
  • Flexible Structures
  • Frequency
  • Identification
  • Large Space Structures
  • Nuclear Engineering
  • Open Loop Systems
  • Resonant Frequency
  • Riccati Equation
  • Security

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Robotics and Automation.
  • Statistical inference.

Technology Areas

  • Space
  • Space - Spacecraft Maneuvers