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Vector acoustic miss distance indication
In 1981 the author decided to investigate means of accurately measuring the passage of anti-aircraft shells past a towed airborne target. This decision was based on the observation that available literature showed a need for low cost miss distance indication equipment. A feasibility study showed tha...
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| Format: | Thesis |
| Language: | English |
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Department of Electrical Engineering
2016
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| _version_ | 1867613330098618368 |
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| access_status_str | Open Access |
| author | Thomson, R G W |
| author2 | McLaren, S G |
| author_browse | McLaren, S G Thomson, R G W |
| author_facet | McLaren, S G Thomson, R G W |
| author_sort | Thomson, R G W |
| collection | Thesis |
| description | In 1981 the author decided to investigate means of accurately measuring the passage of anti-aircraft shells past a towed airborne target. This decision was based on the observation that available literature showed a need for low cost miss distance indication equipment. A feasibility study showed that the task would be multi-disciplinary entailing aerodynamics telemetry, weapons performance studies and investigation of the techniques of measurement of shell location currently in use. The decision was made by the author to concentrate on a study of the technique measurements of shell location and the analysis of such measurements in view of the fact that, at least in isolation, knowledge of the other factors mentioned was fairly complete although unevenly spread in South Africa. Initial work concerned a study of the General Requirements for such target systems and the classification of these. A literature survey was conducted by the author which indicated that systems already in service made use of several measurement techniques, including photographic, radar and acoustic phenomena. Of these, acoustic means appeared to offer a cheap and simple solution to the measurement problem. The author then explored the principles and potential of Acoustic Miss Distance indication and arrived at the conclusion that such a system, based on measurements of the period of the shockwave accompanying a supers6nic shell, would be feasible. This conclusion led to the Thesis presented in this document, that firstly measurement of the shock-wave period could enable deduction of the distance between the sensor and the flight path of a supersonic shell and secondly, that several such measurements would enable the miss vector to be calculated. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/21868 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:34:25.395Z |
| 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 | Department of Electrical Engineering |
| publisherStr | Department of Electrical Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/21868 Vector acoustic miss distance indication Thomson, R G W McLaren, S G Electrical Engineering In 1981 the author decided to investigate means of accurately measuring the passage of anti-aircraft shells past a towed airborne target. This decision was based on the observation that available literature showed a need for low cost miss distance indication equipment. A feasibility study showed that the task would be multi-disciplinary entailing aerodynamics telemetry, weapons performance studies and investigation of the techniques of measurement of shell location currently in use. The decision was made by the author to concentrate on a study of the technique measurements of shell location and the analysis of such measurements in view of the fact that, at least in isolation, knowledge of the other factors mentioned was fairly complete although unevenly spread in South Africa. Initial work concerned a study of the General Requirements for such target systems and the classification of these. A literature survey was conducted by the author which indicated that systems already in service made use of several measurement techniques, including photographic, radar and acoustic phenomena. Of these, acoustic means appeared to offer a cheap and simple solution to the measurement problem. The author then explored the principles and potential of Acoustic Miss Distance indication and arrived at the conclusion that such a system, based on measurements of the period of the shockwave accompanying a supers6nic shell, would be feasible. This conclusion led to the Thesis presented in this document, that firstly measurement of the shock-wave period could enable deduction of the distance between the sensor and the flight path of a supersonic shell and secondly, that several such measurements would enable the miss vector to be calculated. 2016-09-25T16:17:17Z 2016-09-25T16:17:17Z 1985 Master Thesis Masters MScEng http://hdl.handle.net/11427/21868 eng application/pdf Department of Electrical Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Electrical Engineering Thomson, R G W Vector acoustic miss distance indication |
| thesis_degree_str | Master's |
| title | Vector acoustic miss distance indication |
| title_full | Vector acoustic miss distance indication |
| title_fullStr | Vector acoustic miss distance indication |
| title_full_unstemmed | Vector acoustic miss distance indication |
| title_short | Vector acoustic miss distance indication |
| title_sort | vector acoustic miss distance indication |
| topic | Electrical Engineering |
| url | http://hdl.handle.net/11427/21868 |
| work_keys_str_mv | AT thomsonrgw vectoracousticmissdistanceindication |