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dc.contributor.advisorKarpenko, Mark
dc.contributor.advisorRoss, I. Michael
dc.contributor.authorSears, Adam G.
dc.dateDec-13
dc.date.accessioned2014-02-18T23:39:16Z
dc.date.available2014-02-18T23:39:16Z
dc.date.issued2013-12
dc.identifier.urihttp://hdl.handle.net/10945/39011
dc.description.abstractThis thesis investigates the development and implementation of optimal slew trajectories for positioning a spacecraft antenna. Conventional maneuvers are developed by considering each gimbal independently. Consequently, maneuver design is simple, but may be highly sub-optimal and cause significant torques to be imposed on the spacecraft body. This work explores the impact of implementing optimal slew paths that best utilize system dynamics with the objective of increasing available customer time on communications links and enabling new missions. Accomplishing this required the development of a detailed multibody system model that can be easily tailored to any spacecraft antenna configuration. Various software suites were used to perform thorough validation and verification of the Newton-Euler formulation developed herein. The antenna model was then utilized to solve an optimal control problem for a geostationary communications satellite. The developed maneuvers not only reduce the antenana slew time, but also reduce the impact of the antenna motion on the spacecraft attitude. This reduces reliance on the spacecraft attitude control system to maintain pointing, and minimizes the impact of antenna motion on the operation of other payloads. Successful implementation of the designed maneuvers on a laboratory testbed validate the approach in a real hardware environment.en_US
dc.description.urihttp://archive.org/details/designndexperime1094539011
dc.publisherMonterey, California: Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.en_US
dc.titleDesign and experimental implementation of optimal spacecraft atntenna slewsen_US
dc.typeThesisen_US
dc.contributor.departmentMechanical and Aerospace Engineering (MAE)
dc.subject.authorOptimal Slew Maneuversen_US
dc.subject.authorSpacecraften_US
dc.subject.authorAntennaen_US
dc.subject.authorCommunications Satelliteen_US
dc.subject.authorMultibody Dynamicsen_US
dc.description.serviceCaptain, United States Air Forceen_US
etd.thesisdegree.nameMaster of Science In Astronautical Engineeringen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineAstronautical Engineeringen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US
dc.description.distributionstatementApproved for public release; distribution is unlimited.


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