Results 11 to 20 of about 114 (102)
IET Communications, Volume 17, Issue 9, Page 1118-1126, June 2023., 2023 Low cost video sensors used to help firefighters, require high bit rate. To increase spectral efficiency given a limited bandwidth, high order constellations can be used. These constellations are sensitive to hardware impairments. Therefore, this paper studies the effect of carrier frequency offset on the performance of an orthogonal frequency division
Zahra Mokhtari +3 more
wiley +1 more source
Electronics Letters, Volume 58, Issue 20, Page 779-782, September 2022., 2022 Abstract The foreseen scale of connected autonomous and low power consumption devices in the near future is a challenging aspect for the next generation of mobile communication networks. As the number of available connection resources is limited, frequency‐time multiplexing may not be sufficient to meet the expected demand for capacity, where ...
Danilo Gaspar +2 more
wiley +1 more source
A QFT approach to robust dual‐rate control systems
International Journal of Robust and Nonlinear Control, Volume 32, Issue 2, Page 1026-1054, 25 January 2022., 2022 Abstract A dual‐rate control system is a hybrid system composed of continuous‐time and discrete‐time elements with two sampling frequencies. In this work, a new frequency domain analysis and design approach, based on the quantitative feedback theory is developed, to cope with robust stability and robust tracking specifications.
Alfonso Baños +2 more
wiley +1 more source
Filling Control of a Conical Tank Using a Compact Neuro‐Fuzzy Adaptive Control System
Complexity, Volume 2022, Issue 1, 2022., 2022 This document describes the implementation of a conical tank control system using an adaptive neurofuzzy system. For implementation, an indirect approach is used where the controller is optimized using the model obtained during the plant identification carried out using data obtained during the system operation.
Helbert Espitia-Cuchango +3 more
wiley +1 more source
Detección de Señal en un Sistema MIMO Empleando Algoritmos de Colonas de Hormigas
Entre Ciencia e Ingeniería, 2010 Los usuarios de los servicios de telecomunicaciones cada vez demandan mayores servicios a los operadores; se espera que los sistemas de Múltiples Entradas y Múltiples Salidas (MIMO) puedan satisfacer estas necesidades.
Claudia Milena Hernández Bonilla +1 more
doaj +1 more source
Identificación y control de un Vehículo Aéreo no Tripulado tipo Quadcopter
Ingenierías USBMed, 2017 En este artículo se describe el modelo dinámico de un vehículo aéreo no tripulado tipo QuadCopter, se linealiza alrededor de un punto de operación y se aplica un controlador por realimentación de estados que logra llevar el sistema a un estado estable en
Eduardo Giraldo Suarez +2 more
doaj +1 more source
Predistorsión digital en sistemas MIMO 2x2
, 2022 Este trabajo intenta linealizar un sistema de tipo MIMO 2x2. Para ello, será necesario hacer un modelado del sistema, para luego aplicarle predistorsión digital. La predistorsión digital es un bloque de aprendizaje que consigue hacer el efecto inverso a un amplificador de potencia, cuyo comportamiento es no lineal.
openaire +3 more sources
Theoretical and Applied Contributions to Robust Stability Analysis of Complex Systems
, 2020 Complexity, Volume 2020, Issue 1, 2020.
Baltazar Aguirre-Hernández +3 more
wiley +1 more source
A Simplified Output Regulator for a Class of Takagi‐Sugeno Fuzzy Models
Mathematical Problems in Engineering, Volume 2015, Issue 1, 2015., 2015 This paper is devoted to solve the regulation problem on the basis of local regulators, which are combined using “new” membership functions. As a result, the exact tracking of references is achieved. The design of linear local regulators is suggested in this paper, but now adequate membership functions are computed in order to ensure the proper ...
Tonatiuh Hernández-Cortés +4 more
wiley +1 more source
Identificação Determinística por Subespaços
Trends in Computational and Applied Mathematics, 2012 Neste artigo é apresentada uma visão geral sobre o problema de identificação por subespaços em malha aberta. Existem diversos algoritmos que solucionam este problema (MOESP, DSR, N4SID, CVA).
S. D. M. Borjas, C. Garcia
doaj +1 more source