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INCREASED FIDELITY SPACE WEATHER DATA COLLECTION USING A NON-LINEAR CUBESAT NETWORK
by
Louis Edward Atchison IV
________________________________________________________________________
A Dissertation Presented to the
FACULTY OF THE GRADUATE SCHOOL
UNIVERSITY OF SOUTHERN CALIFORNIA
In Partial Fulfillment of the
Requirements for the Degree
DOCTOR OF PHILOSOPHY
(ASTRONAUTICAL ENGINEERING)
December 2009
Copyright 2009 Louis Edward Atchison IV
Object Description
| Title | Increased fidelity space weather data collection using a non-linear CubeSat network |
| Author | Atchison, Louis Edward, IV |
| Author email | atchison@usc.edu; louis.e.atchison@gmail.com |
| Degree | Doctor of Philosophy |
| Document type | Dissertation |
| Degree program | Astronautical Engineering |
| School | Viterbi School of Engineering |
| Date defended/completed | 2009-09-21 |
| Date submitted | 2009 |
| Restricted until | Unrestricted |
| Date published | 2009-10-06 |
| Advisor (committee chair) | Kunc, Joseph |
| Advisor (committee member) |
Barnhart, David Erwin, Daniel Gruntman, Michael Jin, Yan |
| Abstract | Our understanding of the Low Earth Orbit (LEO) space environment is limited by data collected from in-situ space borne instrumentation. Localized variations in this environment can go undetected due to a lack of instrumentation coverage. Existing high performance systems are relatively high cost and built in low quantities, therefore providing limited simultaneous coverage of discrete locations in LEO. Low cost systems built at the academia level are traditionally stand alone, and are not designed to work in networks of systems. The CubeSat standard is quickly becoming the satellite bus platform of choice for low cost academia developers. The fundamental constraints on CubeSat designs substantially limit their ability to compete with heritage space systems in terms of data throughput. By applying CubeSats to on-orbit networks, an increase in their effective data throughput can be achieved. A candidate system architecture has been developed which uses CubeSats equipped with high data rate short-range communications subsystems, networked and tethered to a microsatellite based host vehicle. By implementing a host-slave communications architecture, the CubeSat data downlink rates are increased by four orders of magnitude. A performance simulator was developed and used to compare heritage systems to the traditional CubeSat architecture, and the candidate host-slave architecture for the purposes of creating a low cost high resolution space weather data collection system. Modeling and simulation has demonstrated the CubeSat based host-slave architecture is capable of data rates which support spatial resolutions meeting or exceeding the performance of heritage system sensors, which have been used as the baseline for several existing space weather models. |
| Keyword | CubeSat; CubeSat network; in-situ space weather data collection; nonlinear CubeSat network; CubeSat space weather |
| Language | English |
| Part of collection | University of Southern California dissertations and theses |
| Publisher (of the original version) | University of Southern California |
| Place of publication (of the original version) | Los Angeles, California |
| Publisher (of the digital version) | University of Southern California. Libraries |
| Provenance | Electronically uploaded by the author |
| Type | texts |
| Legacy record ID | usctheses-m2649 |
| Contributing entity | University of Southern California |
| Rights | Atchison, Louis Edward, IV |
| Repository name | Libraries, University of Southern California |
| Repository address | Los Angeles, California |
| Repository email | http://www.usc.edu/isd/libraries/services/ask_a_librarian/email/ |
| Filename | etd-Atchison-3252 |
| Archival file | uscthesesreloadpub_Volume56/etd-Atchison-3252.pdf |
Description
| Title | Page 1 |
| Contributing entity | University of Southern California |
| Full text | INCREASED FIDELITY SPACE WEATHER DATA COLLECTION USING A NON-LINEAR CUBESAT NETWORK by Louis Edward Atchison IV ________________________________________________________________________ A Dissertation Presented to the FACULTY OF THE GRADUATE SCHOOL UNIVERSITY OF SOUTHERN CALIFORNIA In Partial Fulfillment of the Requirements for the Degree DOCTOR OF PHILOSOPHY (ASTRONAUTICAL ENGINEERING) December 2009 Copyright 2009 Louis Edward Atchison IV |
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