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Antenna axis offset and intersection determination using GPS
Bibliography: p. 101-108.
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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School of Architecture, Planning and Geomatics
2016
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| _version_ | 1867613221524865024 |
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| access_status_str | Open Access |
| author | Combrinck, Willem Ludwig |
| author2 | Merry, Charles |
| author_browse | Combrinck, Willem Ludwig Merry, Charles |
| author_facet | Merry, Charles Combrinck, Willem Ludwig |
| author_sort | Combrinck, Willem Ludwig |
| collection | Thesis |
| description | Bibliography: p. 101-108. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/17478 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:32:41.376Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2016 |
| publishDateRange | 2016 |
| publishDateSort | 2016 |
| publisher | School of Architecture, Planning and Geomatics |
| publisherStr | School of Architecture, Planning and Geomatics |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/17478 Antenna axis offset and intersection determination using GPS Combrinck, Willem Ludwig Merry, Charles Surveying and Geodetic Engineering Bibliography: p. 101-108. Modern geodesy utilises advanced space techniques such as VLBI to further the study of crustal motion as well as tidal and rotational deformations of the Earth. One of the parameters in the model used to determine the baseline length between VLBI stations, is the antenna axis offset. This offset is the distance between the secondary axis and the normal projection of the secondary axis onto the primary axis. For a non-intersecting axes antenna mounting, this offset is usually several metres in length. The accuracy of the offset value directly influences the total accuracy of the VLBI results. This work describes how GPS is used to determine the offset and VLBI reference point. Several algorithms for calculating these parameters are investigated and evaluated. Methods are developed to minimise the size and influence of errors. An evaluation and comparison of the results to previous independent determinations of the offset, which use different techniques and instrumentation, clearly show the feasibility of using GPS. This method has the added advantage of allowing the VLBI, SLR and GPS reference frames to be co-located. 2016-03-04T16:45:21Z 2016-03-04T16:45:21Z 1996 Master Thesis Masters MSc (Eng) http://hdl.handle.net/11427/17478 eng application/pdf School of Architecture, Planning and Geomatics Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Surveying and Geodetic Engineering Combrinck, Willem Ludwig Antenna axis offset and intersection determination using GPS |
| thesis_degree_str | Master's |
| title | Antenna axis offset and intersection determination using GPS |
| title_full | Antenna axis offset and intersection determination using GPS |
| title_fullStr | Antenna axis offset and intersection determination using GPS |
| title_full_unstemmed | Antenna axis offset and intersection determination using GPS |
| title_short | Antenna axis offset and intersection determination using GPS |
| title_sort | antenna axis offset and intersection determination using gps |
| topic | Surveying and Geodetic Engineering |
| url | http://hdl.handle.net/11427/17478 |
| work_keys_str_mv | AT combrinckwillemludwig antennaaxisoffsetandintersectiondeterminationusinggps |