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An attitude and orbit determination and control system for a small geostationary satellite
Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2006.
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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Stellenbosch : University of Stellenbosch
2008
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| _version_ | 1867613763518070784 |
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| access_status_str | Open Access |
| author | Thopil, G. A. |
| author2 | Steyn, W. H. |
| author_browse | Steyn, W. H. Thopil, G. A. |
| author_facet | Steyn, W. H. Thopil, G. A. |
| author_sort | Thopil, G. A. |
| collection | Thesis |
| dc_rights_str_mv | University of Stellenbosch |
| description | Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2006. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/2284 |
| institution | Stellenbosch University (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:41:19.170Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2008 |
| publishDateRange | 2008 |
| publishDateSort | 2008 |
| publisher | Stellenbosch : University of Stellenbosch |
| publisherStr | Stellenbosch : University of Stellenbosch |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/2284 An attitude and orbit determination and control system for a small geostationary satellite Thopil, G. A. Steyn, W. H. University of Stellenbosch. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. Geostationary satellites Orbit control Attitude determination and control system Dissertations -- Electronic engineering Theses -- Electronic engineering Electrical and Electronic Engineering Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2006. An analysis of the attitude determination and control system required for a small geostationary satellite is performed in this thesis. A three axis quaternion feedback reaction wheel control system is the primary control system used to meet the stringent accuracy requirements. A momentum bias controller is also evaluated to provide redundancy and to extend actuator life. Momentum dumping is preformed by magnetic torque rods using a crossproduct controller. Performance of three axis thruster control is also evaluated. A full state Extended Kalman filter is used to determine attitude and body angular rates during normal operation whereas a Multiplicative Extended Kalman Filter is used during attitude manoeuvres. An analytical orbit control study is also performed to calculate the propellant required to perform station-keeping, for a specific sub-satellite location over a ten year period. Finally an investigation on the effects caused by thruster misalignment, on satellite attitude is also performed. 2008-08-04T09:56:48Z 2010-06-01T08:45:07Z 2008-08-04T09:56:48Z 2010-06-01T08:45:07Z 2006-12 Thesis http://hdl.handle.net/10019.1/2284 en University of Stellenbosch application/pdf Stellenbosch : University of Stellenbosch |
| spellingShingle | Geostationary satellites Orbit control Attitude determination and control system Dissertations -- Electronic engineering Theses -- Electronic engineering Electrical and Electronic Engineering Thopil, G. A. An attitude and orbit determination and control system for a small geostationary satellite |
| title | An attitude and orbit determination and control system for a small geostationary satellite |
| title_full | An attitude and orbit determination and control system for a small geostationary satellite |
| title_fullStr | An attitude and orbit determination and control system for a small geostationary satellite |
| title_full_unstemmed | An attitude and orbit determination and control system for a small geostationary satellite |
| title_short | An attitude and orbit determination and control system for a small geostationary satellite |
| title_sort | attitude and orbit determination and control system for a small geostationary satellite |
| topic | Geostationary satellites Orbit control Attitude determination and control system Dissertations -- Electronic engineering Theses -- Electronic engineering Electrical and Electronic Engineering |
| url | http://hdl.handle.net/10019.1/2284 |
| work_keys_str_mv | AT thopilga anattitudeandorbitdeterminationandcontrolsystemforasmallgeostationarysatellite AT thopilga attitudeandorbitdeterminationandcontrolsystemforasmallgeostationarysatellite |