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Date of Award
Thesis - Open Access
Master of Science in Engineering Physics
Dr. Mahmut Reyhanoglu
Dr. Sergey V Drakunov
Dr. Bereket Berhane
Since magnetic control systems are relatively lightweight, require low power and are inexpensive, they are attractive for small, inexpensive satellites in low Earth orbits. In this thesis we present averaging-based feedback control laws that achieve three-axis stabilized nadir-pointing attitude. Two types of nonlinear feedback control laws are proposed: full-state feedback and passivity-based feedback. Full-state feedback uses the attitude and angular velocity measurements to regulate the spacecrafts dynamics. Passivity-based feedback uses the attitude measurement and doesn’t require the rate sensors. The control laws are tested using two magnetic field models: the tilted dipole model and the International Geomagnetic Reference Field (IGRF) model. Computer simulations are included to illustrate the effectiveness of the proposed control laws.
Scholarly Commons Citation
Ton, Chau, "Magnetic Stabilization of Nadir-Pointing Small Satellites" (2009). Theses - Daytona Beach. 199.