Zobrazeno 1 - 10
of 60
pro vyhledávání: '"D.J.J. Versfeld"'
Publikováno v:
SAIEE Africa Research Journal. 112:15-23
Passive acoustic monitoring (PAM) is generally usedto extract acoustic signals produced by cetaceans. However, the large data volume from the PAM process is better analyzed using an automated technique such as the hidden Markovmodels (HMM). In this p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3e07e47760d4ad69c5884ae15990416
https://doi.org/10.23919/saiee.2021.9340533
https://doi.org/10.23919/saiee.2021.9340533
Publikováno v:
IET Communications. 14:1968-1974
Belief propagation (BP) is a soft-decision (SD) decoder that is commonly used to obtain near-optimal decoding performance for linear codes defined over sparse parity-check matrix. Nevertheless, the BP yields poor performance when used in the decoding
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f608cf428574b0b5dea2dd4273e8624
https://doi.org/10.1049/iet-com.2019.1008
https://doi.org/10.1049/iet-com.2019.1008
Publikováno v:
IEEE Communications Letters. 24:316-320
The conventional parity-check matrix transformation algorithm (PTA) requires matrix inversion to transform matrices of maximum distance separable (MDS) codes. However, such matrix transformation is not always guaranteed for the class of non-MDS codes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb8ca710080d140a75e0d54d455cfa29
https://doi.org/10.1109/lcomm.2019.2956935
https://doi.org/10.1109/lcomm.2019.2956935
Autor:
D.J.J. Versfeld, Olayinka O. Ogundile
Publikováno v:
IEEE Access. 8:14377-14385
CITATION: Ogundile, O. O. & Versfeld, D. J. J. 2020. Analysis of template-based detection algorithms for inshore Bryde’s whale short pulse calls. IEEE Access, 8:14377-14385, doi:10.1109/ACCESS.2020.2966254.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b140420a14c5266bac8aecc43aaf87c7
https://doi.org/10.1109/access.2020.2966254
https://doi.org/10.1109/access.2020.2966254
Underwater acoustic monitoring systems record many hours of audio data for marine research, making fast and reliable non-causal signal detection paramount. Such detectors assist in reducing the amount of labor required for signal annotations, which o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b209f3fa1a39dafae4cdcd4f0c6fe395
Publikováno v:
The Journal of the Acoustical Society of America. 147(2)
This letter proposes an empirical mode decomposition (EMD) based hidden Markov model (HMM) approach for the detection of mysticetes' pulse calls such as the Bryde's whales. The HMM detection capabilities depend on the deployed feature extraction (FE)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0c23b68ba8363714fc2225971655069
https://pubmed.ncbi.nlm.nih.gov/32113315
https://pubmed.ncbi.nlm.nih.gov/32113315
Autor:
Oluwaseyi P. Babalola, D.J.J. Versfeld
Publikováno v:
SAIEE Africa Research Journal. 109:154-158
Masters Report A report submitted in ful llment of the requirements for the degree of Master of Science (50/50) in the Centre for Telecommunication Access and Services (CeTAS) School of Electrical and Information Engineering Faculty of Engineering an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50cb91273dd0f210b118ce80d9ba2496
https://doi.org/10.23919/saiee.2018.8532191
https://doi.org/10.23919/saiee.2018.8532191
Akademický článek
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Publikováno v:
Ecological Informatics. 63:101306
The detection and classification of Mysticetes' vocalisations have evoked the attention of researchers over the years because of their relevance to the marine ecosystem. These vocalisations are gathered employing different passive acoustic monitoring
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d36dfa535d6037593c5dd32b9749e1b8
https://doi.org/10.1016/j.ecoinf.2021.101306
https://doi.org/10.1016/j.ecoinf.2021.101306
Publikováno v:
SAIEE Africa Research Journal. 108:108-116
The relative strength between the direct and the scattered paths of the received signal in wireless communication as described by the Rician factor K specifies the quality of the transmission link. Fading in Rician channel models influence the perfor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b41e4e1e7ad6156bcf6c90999d98bd6c
https://doi.org/10.23919/saiee.2017.8531522
https://doi.org/10.23919/saiee.2017.8531522