Browsing by Author "381d210d-9a65-456d-9c4c-9a6a31302f25"
Now showing items 1-8 of 8
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Dehghan Firoozabadi, Ali; Irarrázaval, Pablo; Adasme, Pablo; Zabala Blanco, David; Palacios Játiva, Pablo Geovanny; Azurdia Meza, César (MDPI, 2020)Sound source localization is one of the applicable areas in speech signal processing. The main challenge appears when the aim is a simultaneous multiple sound source localization from overlapped speech signals with an ...
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Firoozabadi, Ali Dehghan; Azurdia Meza, César; Soto, Ismael; Seguel, Fabian; Krommenacker, Nicolas; Iturralde, Daniel; Charpentier, Patrick; Zabala-Blanco, David (MDPI AG, 2019)
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Dehghan Firoozabadi, Ali; Irarrázaval, Pablo; Adasme, Pablo; Zabala Blanco, David; Azurdia Meza, César (Springer, 2020)The aim of this article is estimating the number of simultaneous speakers from the overlapped speech signals. The percentage of correct number of speakers is an important factor for the proposed algorithm. The proposed ...
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Palacios Jativa, Pablo; Azurdia Meza, César; Sánchez, Iván; Seguel, Fabián; Zabala Blanco, David; Firoozabadi, Ali Dehghan; Gutiérrez, Carlos A.; Soto, Ismael (IEEE-Inst Electrical Electronics Engineers, 2020)Underground mining is an industry that preserves the miners' safety and efficiency in their work using wireless communication systems as a tool. In addition to communication links characterized by radio frequency signals, ...
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Firoozabadi, Ali Dehghan; Irarrázaval, Pablo; Adasme, Pablo; Zabala Blanco, David; Azurdia Meza, César (Slovak Univ. Technology, 2020)Multiple sound source localization in noisy and reverberant conditions is one of the important challenges in the speech signal processing. The aim of this article is three-dimensional sound source localization in undesirable ...
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Palacios Játiva, Pablo Geovanny; Román Canizares, Milton; Azurdia Meza, César; Zabala Blanco, David; Dehghan Firoozabad, Ali; Seguel, Fabián; Montejo Sánchez, Samuel; Soto, Ismael (MDPI, 2020)This paper proposes two solutions based on angle diversity receivers (ADRs) to mitigate inter-cell interference (ICI) in underground mining visible light communication (VLC) systems, one of them is a novel approach. A ...
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Firoozabadi, Ali Dehghan; Irarrázaval, Pablo; Adasme, Pablo; Zabala Blanco, David; Durney, Hugo; Sanhueza, Miguel; Palacios Jativa, Pablo; Azurdia Meza, César (MDPI, 2020)Speech enhancement is one of the most important fields in audio and speech signal processing. The speech enhancement methods are divided into the single and multi-channel algorithms. The multi-channel methods increase the ...
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Zabala Blanco, David; Azurdia Meza, César; Montejo Sánchez, Samuel; Dehghan Firoozabadi, Ali (Optical Society of Japan, 2020)It is well known that the performance of orthogonal frequency division multiplexing (OFDM) is limited by phase noise, which depends on the laser linewidths for coherent-detection radio over fiber (RoF) systems. In this ...