Fiscal Year	2019
Division	Graduate School of Engineering & Applied Science
Department	Mechanical & Aerospace Engineering
Investigator(s)	Karpenko, Mark
Sponsor	Department of Defense Space (DoD)
Summary	Spacecraft control system failures are often mission ending even when the payload remains operational. These failures can occur suddenly at the beginning of a mission or take place gradually over time. We propose an approach to expand the fundamental limits of control system operation by enabling attitude control authority to be recovered in the event of feedback sensor failures. Part of the objective of this project is to analyze and explain the mechanism that enables a slew to a target to be completed in the absence of feedback. We believe the answer lies in the nonlinear coupling inherent to the dynamics of all practical spacecraft.
Keywords	feedback systems spacecraft attitude control unscented guidance
Publications	Publications, theses (not shown) and data repositories will be added to the portal record when information is available in FAIRS and brought back to the portal
Data	Publications, theses (not shown) and data repositories will be added to the portal record when information is available in FAIRS and brought back to the portal