Date of Award
6-2-2009
Document Type
Thesis
Degree Name
Master of Science
Department
Department of Electrical and Computer Engineering
First Advisor
Meir Pachter, PhD
Abstract
As a result of previous efforts [Pachter, Barba, 2007] a tight control loop was designed to meet performance specifications while minimizing the feedback control system’s gains of a spacecraft mounted flexible antenna. Emphasis is now shifted to on orbit system identification of the antenna dynamics in order to increase nominal plant knowledge, estimate plant uncertainty bounds, as well as determine the disturbance band. Non-parametric system identification is undertaken. 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.
AFIT Designator
AFIT-GA-ENG-09-01
DTIC Accession Number
ADA502124
Recommended Citation
Sylvester, Christopher M., "System Identification of an on Orbit Spacecraft's Antenna Dynamics" (2009). Theses and Dissertations. 2568.
https://scholar.afit.edu/etd/2568