Modeling Ground Sensor Acquisitions of Low Earth Orbit Objects

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dc.contributor.advisor Thom J. Hodgson, Committee Chair en_US
dc.contributor.advisor Russell E. King, Committee Member en_US
dc.contributor.advisor James R. Wilson, Committee Member en_US Bjerkaas, James Kevin en_US 2010-08-19T18:19:59Z 2010-08-19T18:19:59Z 2010-04-20 en_US
dc.identifier.other etd-03292010-192838 en_US
dc.description.abstract The United States Strategic Command (STRATCOM) utilizes a sensor network to accomplish several of its missions. These missions include missile defense, missile warning, intelligence collection, and space surveillance. For the task of space surveillance, the locations of all man-made satellites, as well as debris formed by the collisions of these satellites, is of great interest to the United States. Previous work has focused on assigning the various sensors in the sensor network to the separate tasks required. This thesis focuses on developing a simulation to learn more about the dynamic interactions between the sensors and the constantly moving orbiting field of satellites and debris. The stochastic model developed shows over time what happens to the knowledge of the objects in Low Earth Orbit (LEO) when the sensors assigned to tracking their progress are changed. When sensors are reassigned from space surveillance to another task, the simulation exhibits a transient period where the state of the system adjusts to the new sensor coverage. Similarly, when a sensor is added to the task of space surveillance, a transient period occurs while the system adjusts to the new sensor. This transient information can be used by decision makers as a tool in scheduling sensors to these various tasks, and can also be used to help refine heuristic methods developed previously in addressing this scheduling problem. en_US
dc.rights I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dis sertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to NC State University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. en_US
dc.subject low earth orbit en_US
dc.subject simulation en_US
dc.subject space surveillance en_US
dc.subject phased array radars en_US
dc.title Modeling Ground Sensor Acquisitions of Low Earth Orbit Objects en_US MS en_US thesis en_US Operations Research en_US

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