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Design and implementation of a STANAG 5066 data rate change algorithm for high data rate autobaud waveforms
Dissertation (MEng)--University of Pretoria, 2007.
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University of Pretoria
2013
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| _version_ | 1867613728035307520 |
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| access_status_str | Open Access |
| author2 | Hancke, Gerhard P. |
| author_browse | Hancke, Gerhard P. |
| author_facet | Hancke, Gerhard P. |
| collection | Thesis |
| dc_rights_str_mv | © 2005, University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MEng)--University of Pretoria, 2007. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/24773 |
| institution | University of Pretoria (South Africa) |
| last_indexed | 2026-06-10T12:40:45.289Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/24773 Design and implementation of a STANAG 5066 data rate change algorithm for high data rate autobaud waveforms Hancke, Gerhard P. gschulze@mweb.co.za Schulze, Stephan Drc (data rate change) algorithm Ber (bit error rate) Fer (frame error rate) Stanag (north atlantic treaty organisation standar UCTD Dissertation (MEng)--University of Pretoria, 2007. HF communication has been used for more than a century and to this day still fulfils an important function in communications networks. In order to interface with modern communications protocols, solutions have to be designed to facilitate data communication over HF (High Frequency). STANAG 5066 is one such solution which provides an application independent ARQ (Automatic Repeat Request) bearer service for client applications. A need exists within the STANAG 5066 specification for a DRC algorithm. The objective of such an algorithm is to select the optimum data rate and interleaver size, based upon current HF channel conditions, to maximise the data throughput over the HF link. In this dissertation previous implementations of DRC algorithms were studied and evaluated. In literature it was found that algorithm implementations used the FER and no channel information to make a data rate choice. This resulted in algorithms that tended to oscillate between data rate choices, and was very slow to react to changes in the HF channel. A new DRC algorithm was designed and simulated that uses the SNR (Signal-to-Noise Ratio) and the BER estimate to make a data rate choice. The DRC algorithm was implemented in a commercial STANAG 5066 system and tested using HF data modems and a simulated HF channel. The results of the implementation and testing show that the designed DRC algorithm gives a better performance, is quicker to adapt and is more robust than previous DRC algorithms. This is also the first DRC algorithm that has been designed to use channel information, such as the SNR and BER, to make a data rate choice. Electrical, Electronic and Computer Engineering unrestricted 2013-09-06T18:19:31Z 2006-01-24 2013-09-06T18:19:31Z 2005-08-04 2007-01-24 2006-01-24 Dissertation Schulze, S 2005, Design and implementation of a STANAG 5066 data rate change algorithm for high data rate autobaud waveforms, MEng dissertation, University of Pretoria, Pretoria, viewed yymmdd < http://hdl.handle.net/2263/24773 > http://hdl.handle.net/2263/24773 http://upetd.up.ac.za/thesis/available/etd-01242006-094908/ © 2005, University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | Drc (data rate change) algorithm Ber (bit error rate) Fer (frame error rate) Stanag (north atlantic treaty organisation standar UCTD Design and implementation of a STANAG 5066 data rate change algorithm for high data rate autobaud waveforms |
| title | Design and implementation of a STANAG 5066 data rate change algorithm for high data rate autobaud waveforms |
| title_full | Design and implementation of a STANAG 5066 data rate change algorithm for high data rate autobaud waveforms |
| title_fullStr | Design and implementation of a STANAG 5066 data rate change algorithm for high data rate autobaud waveforms |
| title_full_unstemmed | Design and implementation of a STANAG 5066 data rate change algorithm for high data rate autobaud waveforms |
| title_short | Design and implementation of a STANAG 5066 data rate change algorithm for high data rate autobaud waveforms |
| title_sort | design and implementation of a stanag 5066 data rate change algorithm for high data rate autobaud waveforms |
| topic | Drc (data rate change) algorithm Ber (bit error rate) Fer (frame error rate) Stanag (north atlantic treaty organisation standar UCTD |
| url | http://hdl.handle.net/2263/24773 http://upetd.up.ac.za/thesis/available/etd-01242006-094908/ |