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

Juan Felipe Medina Lee | Biografía
Universidad del Quindío
Alexander López-Parrado | Biografía
Universidad del Quindío
Alexander Vera Tasamá | Biografía
Universidad del Quindío
Duvier de Jesús Bohórquez Palacio | Biografía
Universidad del Quindío
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Derechos de autor 2023 Revista Ingenierías Universidad de Medellín

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Esta obra está bajo licencia internacional Creative Commons Reconocimiento-NoComercial-SinObrasDerivadas 4.0.

Resumen

La 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.

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Cómo citar
Medina Lee, J. F., López-Parrado, A., Vera Tasamá, A., & Bohórquez Palacio, D. de J. (2019). Banco de pruebas para monitoreo Sub-Nyquist de espectro de banda ancha. Revista Ingenierías Universidad De Medellín, 19(37), 35-58. https://doi.org/10.22395/rium.v19n37a2

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