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Development of satellite subsystems for use in a bench satellite
Thesis (MEng)--Stellenbosch University, 2023.
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| Format: | Thesis |
| Language: | en_ZA en_ZA |
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Stellenbosch : Stellenbosch University
2023
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| _version_ | 1867613788780363776 |
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| access_status_str | Open Access |
| author | Jeffrey, Samuel |
| author2 | Jordaan, Willem |
| author_browse | Jeffrey, Samuel Jordaan, Willem |
| author_facet | Jordaan, Willem Jeffrey, Samuel |
| author_sort | Jeffrey, Samuel |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Thesis (MEng)--Stellenbosch University, 2023. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/127207 |
| institution | Stellenbosch University (South Africa) |
| language | en_ZA en_ZA |
| last_indexed | 2026-06-10T12:41:42.984Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/127207 Development of satellite subsystems for use in a bench satellite Jeffrey, Samuel Jordaan, Willem Visagie, Lourens Stellenbosch University. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. Earth stations (Satellite telecommunication) Data transmission systems Wireless Application Protocol (Computer network protocol) Satellite -- Design Thesis (MEng)--Stellenbosch University, 2023. ENGLISH ABSTRACT: This thesis addresses the need for a satellite-like system to bridge the gap between satellite development and satellite flight missions. The solution takes the form of a bench satellite, BenchSat, that can emulate satellite capabilities and interactions in a controlled environment on the ground. BenchSat utilises surrounding facilities, particularly an air bearing facility and an existing ground station (TIM Ground Station), to produce a realistic test environment for satellite development. Through research and literature review, the form and subsystems for BenchSat were selected to best suit the requirements of the Electronic Systems Laboratory. During BenchSat’s system-level design three subsystems were identified and defined, namely an electrical power subsystem, a radio communication subsystem, and an onboard computer subsystem. Each subsystem is designed to include a microcontroller and accept external power so that it can function on its own. The subsystems were designed and implemented separately with each subsystem completing a different requirement for BenchSat. Firstly, the electrical power subsystem delivers power to the BenchSat satellite bus, additional payloads, and the carrier cart that moves around the air bearing facility. Secondly, the radio communication system connects to the TIM Ground Station to allow experiments with BenchSat to be controlled remotely from an active ground station as they would be during a real flight mission. Finally, the onboard computer subsystem fulfills multiple tasks including controlling the air bearing carrier cart movement, monitoring movement, and controlling experiments and demonstrations. Ground station software and hardware were developed on the TIM Ground Station to communicate with BenchSat and a second ground station was built within the Electronic Systems Laboratory to provide an easier route to testing. Finally, a fully integrated BenchSat connected to the air bearing carrier cart and moving around the air bearing facility was demonstrated. During this demonstration, multiple actions were executed and BenchSat was in constant connection with the TIM Ground Station. The demonstrations showed that BenchSat met the system requirements to a high level. AFRIKAANS OPSOMMING: Hierdie tesis spreek aan die behoefte vir ’n satellietagtige stelsel aan om die gaping tussen satellietontwikkeling en satellietvlug missies te oorbrug. Die oplossing neem die vorm aan van ’n banksatelliet, BenchSat, wat satelliet vermo¨ens en interaksies kan emuleer in ’n beheerde omgewing op die grond. BenchSat gebruik die beskikbaarde fasiliteite, veral ’n luglaerfasiliteit en ’n bestaande grondstasie (TIM Grondstasie), om ’n realistiese toetsomgewing vir satellietontwikkeling te produseer. Deur navorsing en literatuurstudie is die vorm en substelsels vir BenchSat gekies wat die beste te pas by die vereistes van die Elektroniese Stelsels Laboratorium. Tydens BenchSat se stelselvlakontwerp is drie subsisteme ge¨ıdentifiseer en gedefinieer; naamlik ’n elektriese kragsubstelsel, ’n radiokommunikasiesubstelsel en ’n aanboordrekenaarsubstelsel. Elke substelsel is ontwerp met ’n mikrobeheerder ingesluit en aanvaar eksterne krag sodat dit op sy eie kan funksioneer. Die substelsels was afsonderlik ontwerp en ge¨ımplementeer, met elke substelsel wat ’n ander vereiste vir BenchSat voltooi. Eerstens die elektriese kragsubstelsel lewer krag aan die BenchSat-satellietbus, bykomende vragte en die draerwa wat om die luglaerfasiliteit beweeg. Tweedens, die radiokommunikasiestelsel koppel aan die TIM Grondstasie om toe te laat eksperimente met BenchSat wat op afstand vanaf ’n aktiewe grondstasie beheer moet word soos dit tydens ’n regte vlugmissie sou wees. Uiteindelik die aanboordrekenaarsubstelsel vervul die veelvuldige take, insluitend die beheer van die beweging van die luglaer-karretjie, monitering van beweging, en beheer van eksperimente en demonstrasies. Grondstasie sagteware en hardeware was op die TIM Grondstasie ontwikkel om met BenchSat en ’n tweede grondstasie te kommunikeer was binne die Elektroniese Stelsels Laboratorium gebou om ’n makliker roete vir toetsing aan te bied. Laastens, ’n volledige integreerde BenchSat wat aan die luglaer-karretjie gekoppel is en om die luglaerfasiliteit beweeg, was gedemonstreer. Tydens hierdie demonstrasie is verskeie aksies uitgevoer en BenchSat was in konstante verbinding met die TIM Grondstasie. Die demonstrasies het aangedui dat BenchSat tot ’n ho¨e vlak die stelselvereistes voldoen het. Masters 2023-03-03T11:35:05Z 2023-05-18T07:09:49Z 2023-03-03T11:35:05Z 2023-05-18T07:09:49Z 2023-03 Thesis http://hdl.handle.net/10019.1/127207 en_ZA en_ZA Stellenbosch University xii, 125 pages : illustrations. application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Earth stations (Satellite telecommunication) Data transmission systems Wireless Application Protocol (Computer network protocol) Satellite -- Design Jeffrey, Samuel Development of satellite subsystems for use in a bench satellite |
| title | Development of satellite subsystems for use in a bench satellite |
| title_full | Development of satellite subsystems for use in a bench satellite |
| title_fullStr | Development of satellite subsystems for use in a bench satellite |
| title_full_unstemmed | Development of satellite subsystems for use in a bench satellite |
| title_short | Development of satellite subsystems for use in a bench satellite |
| title_sort | development of satellite subsystems for use in a bench satellite |
| topic | Earth stations (Satellite telecommunication) Data transmission systems Wireless Application Protocol (Computer network protocol) Satellite -- Design |
| url | http://hdl.handle.net/10019.1/127207 |
| work_keys_str_mv | AT jeffreysamuel developmentofsatellitesubsystemsforuseinabenchsatellite |