System Identification of an on Orbit Spacecraft's Antenna Dynamics

Abstract

The research presented here is a follow on to previous efforts [Pachter, Barba, 2007] in which a tight control loop was designed to meet performance specifications while minimizing the control gains of a spacecraft mounted flexible antenna. Emphasis is now shifted to system identification in order to increase nominal plant knowledge, estimate plant uncertainty bounds, as well as determine the disturbance band. Knowledge of the plant dynamics along with the corresponding uncertainty bounds will provide for the design of a control system which meets the specifications (tracking and disturbance rejection) while at the same time employing the lowest possible gain. This in turn is conducive to sensor noise disturbance rejection, avoidance of actuator saturation, and excitation of high frequency modes.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2009
Accession Number
ADA502124

Entities

People

  • Christopher M. Sylvester

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Air Force
  • Control Systems
  • Frequency
  • Frequency Domain
  • Frequency Response
  • Identification
  • Information Science
  • Kalman Filters
  • Mathematical Filters
  • Monte Carlo Method
  • Sampling
  • Spacecraft
  • Square Waves
  • Standards
  • Statistical Algorithms
  • Statistical Analysis
  • United States Naval Academy

Readers

  • Phased Array Antenna Design.
  • Robotics and Automation.
  • Systems Analysis and Design

Technology Areas

  • Space
  • Space - Spacecraft Maneuvers