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OFDM comparison with FFT and DWT processing for DVB-T2 wireless channels
(Universidad de la Costa, 2018)
Introduction: Recent studies on the FFT processing (Fast Fourier Transform) or DWT (Discrete Wavelet Transform) of the OFDM signal (Orthogonal Frequency Division Multiplexing) have shown pros and cons ...
Electric power generation from a turnstile
(Universidad Nacional de Colombia, 2020)
This research aimed to design, simulate in SolidWorks, build, and test two energy conversion mechanisms using mechanical gears and through 0 neodymium magnets. The used source of mechanical energy was the rotational movement ...
Resolución de problemas como estrategia de enseñanza para la formación integral de ingenieros
(Escuela Colombiana De Ingeniería Julio Garavito, 2013)
En este libro se investiga sobre la resolución de problemas en una perspectiva de investigación (RPPI), como una actividad crucial en las ciencias y las disciplinas tecnológicas, inherente a la vida diaria y al trabajo ...
Coexistence for LTE-Advanced and FSS Services in the 3.5GHz Band in Colombia
(IEEE Transactions on Signal Processing, 2020)
The 3.5GHz band is an optimal candidate for 5G networks due to its propagation characteristics and massive bandwidth. However, services like the Fixed Satellite Service (FSS) are using this band in several countries. ...
Electronic Device for Satellite Backup of Automatic Vehicle Location Equipment Using the Iridium Network
(2020)
Context: This paper presents the design and development of an electronic device that operates as a
satellite backup channel for automatic vehicle location (AVL) equipment, whose only communication
channel is the cellular ...
Justificación de una propuesta regulatoria para radiodifusión sonora y transmóviles en las fronteras colombianas
(Universidad Pedagógica y Tecnológica de Colombia, 2015)
Actualmente en Colombia no existe normatividad ni acuerdos que regulen los servicios de radiodifusión sonora y transmóviles en sus fronteras. Este artículo tiene como objetivo justificar la necesidad de reglamentar dichos ...
Design and development of an electronic device for data transmission with universal coverage
(Universidad Nacional de Colombia, 2014)
This paper presents the design and development of an electronic device with cellular and satellite coverage for localization and tracking of mobile assets in Colombia (public transport, freight, carriers, etc.). The ...
Design, construction and evaluation of a dual device with cellular / satellite coverage for mobile asset tracking technology transfer through
(Universidad Santo Tomás, 2015)
This paper presents the design, construction and evaluation of the wireless device OSP cellular and satellite coverage for localization and tracking of mobile assets in Colombia (public transport, freight, carriers, etc.). ...
Interface Design for OSP / Satellite Device
(LACCEI - Latin American and Caribbean Consortium of Engineering Institutions, 2015)
This paper presents the design and construction of communication interfaces EUSART (Enhanced Universal
Synchronous Asynchronous Receiver Transmitter) using the OSP / Satellite device. The technological product that ...
Tecnología radio cognitiva en la banda ultra high frequency (UHF)
(Universidad Distrital Francisco José de Caldas, 2014)
Las empresas de comunicaciones celulares móviles en Colombia requieren mayor recurso espectral para ampliar su portafolio de servicios; sin embargo, no hay frecuencias adicionales para tal fin, no obstante es conocido que ...