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dc.contributor.advisorKim, Jae Jun
dc.contributor.advisorAgrawal, Brij N.
dc.contributor.authorFlores, Christopher R.
dc.dateDec-15
dc.date.accessioned2016-02-17T18:38:54Z
dc.date.available2016-02-17T18:38:54Z
dc.date.issued2015-12
dc.identifier.urihttp://hdl.handle.net/10945/47946
dc.descriptionApproved for public release; distribution is unlimiteden_US
dc.description.abstractThe purpose of this thesis is to provide a system level performance analysis for an imaging spacecraft. In an imaging spacecraft, an attitude control subsystem’s function is to orient the spacecraft’s body to acquire a target through the use of an actuator. In practice, reaction wheels commonly perform this function by producing a reactive torque on the spacecraft. Consequently, due to the static and dynamic imbalances in individual reaction wheels, an undesired vibration, called jitter, is generated during operation and causes variations in the spacecraft’s attitude. Focusing on missions and payloads operating in the infrared band, optical jitter effects on target detection and tracking performance need to be investigated. Using a quaternion error feedback design, jitter produced by the reaction wheels was recorded while performing a standard spacecraft maneuver. Simulating a low earth orbiting satellite, the vibrations generated a significant optical jitter blur due to a line-of-sight motion. After implementing the optical jitter blur in a baseline high resolution image, the simulation considerably reduced the frame’s spatial resolution and intensity. The simulation demonstrated the jitter blur’s effects on spatial resolution and intensity, which significantly decreased the system’s ability to detect and track objects-of-interest.en_US
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.titleOptical jitter effects on target detection and tracking of overhead persistent infrared systemsen_US
dc.typeThesisen_US
dc.contributor.departmentMechanical and Aerospace Engineeringen_US
dc.contributor.departmentMechanical and Aerospace Engineering (MAE)
dc.subject.authorinfrared detection and trackingen_US
dc.subject.authorcentroiden_US
dc.subject.authorjitteren_US
dc.subject.authorreaction wheelen_US
dc.subject.authorbluren_US
dc.subject.authorKalman filteren_US
dc.description.serviceLieutenant, United States Navyen_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


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