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Banco de pruebas para monitoreo Sub-Nyquist de espectro de banda ancha

Testbed for Sub-Nyquist Wideband Spectrum Monitoring;
Banco de testes para monitoramento sub-Nyquist de espectro de banda larga

dc.contributor.authorMedina Lee, Juan Felipe
dc.contributor.authorLópez-Parrado, Alexander
dc.contributor.authorVera Tasamá, Alexander
dc.contributor.authorBohórquez Palacio, Duvier de Jesús
dc.date.accessioned2021-10-05T18:41:55Z
dc.date.available2021-10-05T18:41:55Z
dc.date.created2019-10-04
dc.identifier.issn1692-3324
dc.identifier.urihttp://hdl.handle.net/11407/6543
dc.descriptionLa gestión del espectro radioeléctrico es una preocupación en la actualidad, hecho derivado, ante todo, del mal uso que se ha dado a este recurso a través de los años, especialmente en la banda de UHF. Para afrontar este problema, se construyó un banco de pruebas para la supervisión del espectro de banda ancha a través de muestreo sub-Nyquist, el cual incluye una interfaz web para medir de forma remota la ocupación de la banda UHF. Para lograr esto, se construyó una interfaz RF que permitiría sintonizar frecuencias UHF con un ancho de banda instantáneo de 95 MHz. Después, se conectó un demodulador aleatorio; y luego, un sistema embebido realizaría el muestreo sub-Nyquist y la recuperación del espectro. Este se conectaría, a su turno, con un sistema de información que sirve una página web, a través de la cual los usuarios remotos pueden realizar la supervisión de la banda de UHF. Los resultados muestran que la detección del espectro se puede lograr mediante diferentes algoritmos en ciertos espectros dispersos. Además, la interfaz web permitió que existiesen conexiones de usuario simultáneas, de tal manera que se realizaran mediciones independientes compartiendo el subsistema de hardware.
dc.descriptionRadioelectric spectrum management is a concern for today's world, mainly due to the misuse that has been given to this resource through the years, especially on the UHF band. To address this problem, a testbed for sub-Nyquist Wideband Spectrum Monitoring was built, that includes a web interface to remotely measure occupancy of the UHF band. To achieve the above, an RF interface that allows tuning UHF frequencies with an instantaneous bandwidth of 95 MHz was built. Afterwards, a Random Demodulator was connected, and then an embedded system performed sub--Nyquist sampling and spectrum recovery. The embedded system connected to an information system that serves a web page, through which remote users can perform UHF band monitoring. Experimental results showed that spectrum sensing can be achieved by using different algorithms on certain sparse spectra. In addition, the aforementioned web interface allowed simultaneous user connections, in order to perform independent measurements by sharing a hardware subsystem.
dc.descriptionO gerenciamento do espectro radioelétrico é uma preocupação na atualidade, fato derivado, inicialmente, do mau uso que se tem dado a esse recurso através dos anos, especialmente na banda de UHF. Para enfrentar esse problema, construiu-se um banco de testes para a supervisão do espectro de banda larga por meio de amostragem sub-Nyquist, a qual inclui uma interface web para medir de forma remota a ocupação da banda UHF. Para isso, construiu-se uma interface RF que permitiria sintonizar frequências UHF com uma largura de banda instantânea de 95 MHz. Em seguida, ligou-se um demodulador aleatório; logo, um sistema embebido realizaria a amostragem sub-Nyquist e a recuperação do espectro. Este se ligaria, por sua vez, com um sistema de informação que serve um site, através do qual os usuários remotos podem realizar a supervisão da banda de UHF. Os resultados mostram que a detecção do espectro pode ser conseguida mediante diferentes algoritmos em certos espectros dispersos. Além disso, a interface web permitiu que existissem conexões de usuário simultâneas, de tal maneira que se realizassem medidas independentes compartilhando o subsistema de hardware.
dc.formatPDF
dc.format.extentp. 35-58
dc.format.mediumElectrónico
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherUniversidad de Medellín
dc.relation.ispartofseriesRevista Ingenierías Universidad de Medellín; Vol. 19 Núm. 37 (2020)
dc.relation.haspartRevista Ingenierías Universidad de Medellín; Vol. 19 Núm. 37 julio-diciembre 2020
dc.relation.urihttps://revistas.udem.edu.co/index.php/ingenierias/article/view/2534
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0
dc.sourceRevista Ingenierías Universidad de Medellín; Vol. 19 Núm. 37 (2020): julio-diciembre; 35-58
dc.subjectDetección compresiva
dc.subjectMétodos de muestreo
dc.subjectSistemas de información
dc.subjectSistema en un solo chip
dc.subjectCircuitos de procesamiento analógico
dc.subjectServicios Web
dc.subjectCompressed sensing
dc.subjectSampling methods
dc.subjectInformation systems
dc.subjectSystem-on-chip
dc.subjectAnalog processing circuits
dc.subjectWeb services
dc.subjectDetecção compressiva
dc.subjectMétodos de amostragem
dc.subjectSistemas de informação
dc.subjectSistema em um chip
dc.subjectCircuitos de processamento analógico
dc.subjectServiços web
dc.titleBanco de pruebas para monitoreo Sub-Nyquist de espectro de banda ancha
dc.titleTestbed for Sub-Nyquist Wideband Spectrum Monitoring
dc.titleBanco de testes para monitoramento sub-Nyquist de espectro de banda larga
dc.typeArticle
dc.identifier.doihttps://doi.org/10.22395/rium.v19n37a2
dc.relation.citationvolume19
dc.relation.citationissue37
dc.relation.citationstartpage35
dc.relation.citationendpage58
dc.audienceComunidad Universidad de Medellín
dc.publisher.facultyFacultad de Ingenierías
dc.coverageLat: 06 15 00 N degrees minutes Lat: 6.2500 decimal degreesLong: 075 36 00 W degrees minutes Long: -75.6000 decimal degrees
dc.publisher.placeMedellín
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dc.rights.creativecommonsAttribution-NonCommercial-ShareAlike 4.0 International
dc.identifier.eissn2248-4094
dc.type.coarhttp://purl.org/coar/resource_type/c_6501
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dc.type.localArtículo científico
dc.type.driverinfo:eu-repo/semantics/article
dc.identifier.reponamereponame:Repositorio Institucional Universidad de Medellín
dc.identifier.repourlrepourl:https://repository.udem.edu.co/
dc.identifier.instnameinstname:Universidad de Medellín


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