Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Cesar Azurdia-Meza"'
Autor:
Sebastián Urbina Fredes, Ali Dehghan Firoozabadi, Pablo Adasme, David Zabala-Blanco, Pablo Palacios Játiva, Cesar Azurdia-Meza
Publikováno v:
Applied Sciences, Vol 14, Iss 13, p 5783 (2024)
Epilepsy affects millions worldwide, making timely seizure detection crucial for effective treatment and enhanced well-being. Electroencephalogram (EEG) analysis offers a non-intrusive solution, but its visual interpretation is prone to errors and re
Externí odkaz:
https://doaj.org/article/c04085b76abc42489103b3aeec675811
Autor:
Milton Román Cañizares, Pablo Palacios Játiva, Javier Guaña-Moya, William Villegas-Ch, Cesar Azurdia-Meza
Publikováno v:
Photonics, Vol 10, Iss 10, p 1117 (2023)
Indoor visible light communication (VLC) systems have been extensively studied; however, they present some problems when the main propagation channel component, called Line-of-Sight (LoS), is partially or totally blocked. The effect of this blockage
Externí odkaz:
https://doaj.org/article/886c74299eee4a1a8d5eaaa40f1cbea9
Autor:
Lisandra Bravo Alvarez, Samuel Montejo-Sánchez, Lien Rodríguez-López, Cesar Azurdia-Meza, Gabriel Saavedra
Publikováno v:
Sensors, Vol 23, Iss 17, p 7545 (2023)
The expectation for communication systems beyond 5G/6G is to provide high reliability, high throughput, low latency, and high energy efficiency services. The integration between systems based on radio frequency (RF) and visible light communication (V
Externí odkaz:
https://doaj.org/article/63441ad670214a178a170ab1f9df0dd6
Autor:
Francisco Rau, Ismael Soto, David Zabala-Blanco, Cesar Azurdia-Meza, Muhammad Ijaz, Sunday Ekpo, Sebastian Gutierrez
Publikováno v:
Sensors, Vol 23, Iss 11, p 4997 (2023)
This paper presents a systematic approach for solving complex prediction problems with a focus on energy efficiency. The approach involves using neural networks, specifically recurrent and sequential networks, as the main tool for prediction. In orde
Externí odkaz:
https://doaj.org/article/c8fdd341c4404f108b946a856cd0991f
Autor:
Ali Dehghan Firoozabadi, Pablo Adasme, David Zabala-Blanco, Pablo Palacios Játiva, Cesar Azurdia-Meza
Publikováno v:
Sensors, Vol 23, Iss 9, p 4499 (2023)
Speech processing algorithms, especially sound source localization (SSL), speech enhancement, and speaker tracking are considered to be the main fields in this application. Most speech processing algorithms require knowing the number of speakers for
Externí odkaz:
https://doaj.org/article/1353841292b045e284723c7ab9431034
Publikováno v:
IEEE Access, Vol 7, Pp 53496-53508 (2019)
The lack of available spectrum for wireless communications is a threat to the successful deployment of applications designed for intelligent transportation systems (ITSs). The ITS services should be available to a high number of road users and have a
Externí odkaz:
https://doaj.org/article/db90115c6155449798892f958c0c0a66
Autor:
Ali Dehghan Firoozabadi, Pablo Irarrazaval, Pablo Adasme, David Zabala-Blanco, Pablo Palacios Játiva, Cesar Azurdia-Meza
Publikováno v:
Sensors, Vol 22, Iss 3, p 1011 (2022)
Multiple simultaneous sound source localization (SSL) is one of the most important applications in the speech signal processing. The one-step algorithms with the advantage of low computational complexity (and low accuracy), and the two-step methods w
Externí odkaz:
https://doaj.org/article/8462db16513f49ad8f5199c7ce42d908
Autor:
Nicolás López-Vilos, Claudio Valencia-Cordero, Cesar Azurdia-Meza, Samuel Montejo-Sánchez, Samuel Baraldi Mafra
Publikováno v:
Sensors, Vol 21, Iss 12, p 4079 (2021)
Jamming attacks in wireless sensor networks (WSNs) scenarios are detrimental to the performance of these networks and affect the security and stability of the service perceived by users. Therefore, the evaluation of the effectiveness of smart environ
Externí odkaz:
https://doaj.org/article/ac02c68befe145edb490d92beb1d2dcd
Autor:
Ali Dehghan Firoozabadi, Pablo Irarrazaval, Pablo Adasme, David Zabala-Blanco, Hugo Durney, Miguel Sanhueza, Pablo Palacios-Játiva, Cesar Azurdia-Meza
Publikováno v:
Applied Sciences, Vol 10, Iss 11, p 3955 (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 speech enhancement performan
Externí odkaz:
https://doaj.org/article/f7d54dfecdfc4d418ad3600ad0cb35ea
Autor:
Ali Dehghan Firoozabadi, Cesar Azurdia-Meza, Ismael Soto, Fabian Seguel, Nicolas Krommenacker, Daniel Iturralde, Patrick Charpentier, David Zabala-Blanco
Publikováno v:
Applied Sciences, Vol 9, Iss 7, p 1488 (2019)
A new visible light communication (VLC) system is proposed for localization in underground mining. Existent systems, such as global positioning system (GPS) and systems based on mobile communication, are generally not useful in underground mining. Th
Externí odkaz:
https://doaj.org/article/c8ba4922e9874c258df6d3df2362c22e