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Mostrando ítems 1-10 de 26
Improving the potential of Enhanced Teager Energy Cepstral Coefficients (ETECC) for replay attack detection
(2022-03-01)
In the scope of voice biometrics, the term replay attack, (RA) refers to the dishonest attempt made by an impostor to spoof someone else's identity by replaying the subject's previously recorded speech close to the Automatic ...
Identificação de emoções em sinais de voz com base no operador de energia de Teager aprimorado
(Universidade Estadual Paulista (Unesp), 2022-01-21)
Atualmente, as pessoas estão cada vez mais conectadas, seja com seu computador pessoal, seja com seu celular, ou seja com qualquer outro tipo de tecnologia presente no seu dia a dia. A interface humano-computador, apesar ...
Operador de energía de teager para la detección de hipernasalidad en niños con labio y paladar hendido
(Instituto Tecnológico Metropolitano (ITM), 2011-06-21)
El labio y/o paladar hendido (LPH) es una malformación, que tiene orígenes de tipo genético y ambiental. En Colombia, 6 de cada 10000 niños nacen con esta malformación, mientras en el resto del mundo la proporción se ...
Diagnosis of bearing faults in induction motors by vibration signals-Comparison of multiple signal processing approaches
(2015-01-01)
Early detection of faults in the bearings of electric motors is vital to reduce maintenance costs of industrial motors. Vibration signal analysis is a well-known and widely used diagnostic approach for bearing fault ...
Diagnosis of Bearing Faults in Induction Motors By Vibration Signals - Comparison of Multiple Signal Processing Approaches
(Ieee, 2015-01-01)
Early detection of faults in the bearings of electric motors is vital to reduce maintenance costs of industrial motors. Vibration signal analysis is a well-known and widely used diagnostic approach for bearing fault ...
Enhancing teager energy operator based on a novel and appealing concept: Signal mass
(2019-03-01)
In analogy with a spring-mass system, the original Teager Energy Operator (T) approximately models the energy of a discrete-time signal (x[·]) as the squared product of its amplitude (A) by its instantaneous frequency (Ω). ...
Avaliação de sinais acústicos para o pré-diagnóstico de covid-19
(Universidade Estadual Paulista (Unesp), 2022-01-06)
The signals produced by the human body have been the subject of researches on indicators related to different diseases. With the outbreak of the Sars-Cov-2 pandemic in 2020, there is a unique opportunity for signal processing ...
Proposição e avaliação de técnicas alternativas para detecção de faltas de alta impedânciaProposition and evaluation of alternative techniques for detection of high impedance faults
(Pós-Graduação em Engenharia ElétricaUniversidade Federal de Sergipe, 2022)
Operador de energía de Teager para la detección de hipernasalidad en niños con labio y paladar hendido
(Instituto Tecnológico MetropolitanoGEPARGrupo de Investigación en Telecomunicaciones Aplicadas (GITA)Medellín, Colombia, 2017)
Frequency Estimation in DSOGI cells by means of the Teager Energy Operator
Second Order Generalized Integrator (SOGI) cells are used for notch filtering due to their simplicity and harmonic rejection capability. SOGI and Dual SOGI (DSOGI) filter cells, combined with Frequency Locked Loops (FLL) ...