Extended Kalman Filter
Mostrando 25-33 de 33 artigos, teses e dissertações.
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25. Study of speed estimation of induction motor without state observer and Kalman filter / Estudo de estimadores de velocidade de motor de indução com observadores de estado e filtro de Kalman
This works presents through of the simulation a comparative study of the sensorless of speed estimation of induction three-phase motor using state observer and Kalman filter. A comparative analysis of the performance of the deterministic and stochastic estimation strategies using adaptive observers and estimators based on extended Kalman filter was realized.
Publicado em: 2006
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26. Identificação de sistemas "on-line", otimização e controle avançado com o filtro de Kalman estendido / On line system identification, advanced control and optimization with the (Extended) Kalman filter
In the continuing competition between it will be more and more necessary to optimize current chemical processes in real time. To be able to optimize a plant in real time, there have to be various aspects to be fulfilled, such as measurement, reliability of the measurement and prediction of the process behaviour. In this work some of the aspects of such an ad
Publicado em: 2006
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27. INFERENCE OF THE QUALITY OF DESTILLATION PRODUCTS USING ARTIFICIAL NEURAL NETS AND FILTER OF EXTENDED KALMAN / INFERÊNCIA DA QUALIDADE DE PRODUTOS DE DESTILAÇÃO UTILIZANDO REDES NEURAIS ARTIFICIAIS E FILTRO DE KALMAN ESTENDIDO
Atualmente cresce o interesse científico e industrial na elaboração de métodos de controle não lineares. Porém, estes modelos costumam ter difícil implementação e um custo elevado até que se obtenha uma ferramenta de controle confiável. Desta forma, estudos na área de métodos de apoio à decisão procuram desenvolver aplicações inteligentes co
Publicado em: 2005
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28. Desenvolvimento de sistema de sensoriamento de posição e atuação para posicionamento dinâmico de modelos reduzidos em tanque de provas. / Development of both sensing and actuation infra-structure for the performance evaluation of Dynamic Positioning Systems for reduced scale model of ships in towing tanks or offshore tanks.
The main objective of this work is the development of both sensing and actuation infra-structure for the performance evaluation of Dynamic Positioning Systems for reduced scale model of ships in towing tanks or offshore tanks. It describes the conception, design, implementation and tests of a range and orientation sensor system, as well as the hardware of th
Publicado em: 2005
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29. ESTIMAÇÃO DE VELOCIDADE DO MOTOR COM CONTROLE VETORIAL SEM SENSOR, UTILIZANDO FILTRO ESTENDIDO DE KALMAN COM ESTIMAÇÃO DA COVARIÂNCIA DOS RUÍDOS / MOTOR SPEED ESTIMATION WITH SENSORLESS VECTORIAL CONTROL, EMPLOYING AN EXTENDED KALMAN FILTER WITH ESTIMATION OF THE COVARIANCE OF THE NOISES
This work presents a solution to estimate the induction motor drive speed when a sensorless vectorial control is applied employing an extended Kalman Filter with a secundary filter, innovative, which supply the optimal covariance matrix values of the noise and it permit to work online way.
Publicado em: 2004
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30. Comparison of biomass estimation techniques for a Bacillus thuringiensis fed-batch culture
In this work, the ability of artificial neural nets was investigated for the on-line biomass prediction of the simulated growth of a strain of Bacillus thuringiensis in fed-batch mode. For this purpose, multilayered backpropagation nets with sigmoid nodes were trained. The patterns were composed of input data on current values of biomass concentration, limit
Brazilian Journal of Chemical Engineering. Publicado em: 2001-03
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31. Extended Kalman filter applied to electrical impedance tomography. / Filtro estendido de Kalman aplicado à tomografia por impedância elétrica.
A Tomografia por Impedância Elétrica (EIT) é um método que utiliza estimativas da distribuição de condutividade ou impedância de tecidos orgânicos na obtenção de imagens médicas. O procedimento de obtenção das imagens baseia-se em medições de correntes ou voltagens no contorno da região sob análise e na estimação de parâmetros de um model
Publicado em: 2001
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32. Sensor locations and noise reduction in high-purity batch distillation control loops
The influence of the sensor locations on the composition control of high-purity batch distillation columns has been investigated. Using concepts of the nonlinear control theory, an input-output linearizing controller was implemented to keep the distillate composition constant at a desired value by varying the reflux ratio. An Extended Kalman Filter was devel
Brazilian Journal of Chemical Engineering. Publicado em: 2000-12
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33. Estimation of aircraft aerodynamic derivatives using Extended Kalman Filter
Design of flight control laws, verification of performance predictions, and the implementation of flight simulations are tasks that require a mathematical model of the aircraft dynamics. The dynamical models are characterized by coefficients (aerodynamic derivatives) whose values must be determined from flight tests. This work outlines the use of the Extende
Journal of the Brazilian Society of Mechanical Sciences. Publicado em: 2000