Results 41 to 50 of about 3,012,873 (295)

DeepVoCoder: A CNN model for compression and coding of narrow band speech [PDF]

, 2019
This paper proposes a convolutional neural network (CNN)-based encoder model to compress and code speech signal directly from raw input speech. Although the model can synthesize wideband speech by implicit bandwidth extension, narrowband is preferred for
Ilk, Hakki Gokhan, Keles, Hacer Yalim, Rozhon, Jan, Vozňák, Miroslav   +3 more
core   +1 more source

Signal Quality of a Wideband SDR Transceiver Under Varying Frequency Deviation

Tecnura
This study examines the quality of an audio signal received via a Software-Defined Radio (SDR) peripheral for Wideband Frequency Modulation (WBFM). The objective is to evaluate the impact of varying the maximum frequency deviations of the modulator ...
Hernán Paz Penagos
doaj   +1 more source

Desempenho de rede de sensores sem fio em casa de vegetação Performance of wireless sensor network in a greenhouse

Revista Brasileira de Engenharia Agrícola e Ambiental, 2012
A potência de sinal é um importante parâmetro a ser considerado em um projeto de implantação de rede de sensores sem fio no meio agrícola. Este trabalho tem como objetivo coletar dados de qualidade de sinal transmitido entre uma estação base e um nó ...
Barbara Teruel, Elaine C. de S. Alves, Clerivaldo J. Roccia, Francisco J. Arnold, Leonardo L. Bravo-Roger   +4 more
doaj   +1 more source

Insertable cardiac monitor with a long sensing vector: Impact of obesity on sensing quality and safety

Frontiers in Cardiovascular Medicine, 2023
BackgroundFat layers in obese patients can impair R-wave detection and diagnostic performance of a subcutaneous insertable cardiac monitor (ICM). We compared safety and ICM sensing quality between obese patients [body mass index (BMI) ≥ 30 kg/m2] and ...
Giovanni Bisignani, Silvana De Bonis, Bertrand Pierre, Dennis H. Lau, Daniel Hofer, Victor Manuel Sanfins, Andreas Hain, Pilar Cabanas, Eimo Martens, Antonio Berruezo, Romain Eschalier, Paul Milliez, Ulrich Lüsebrink, Jacques Mansourati, Georgios Papaioannou, Daniele Giacopelli, Daniele Giacopelli, Alessio Gargaro, Sylvain Ploux   +18 more
doaj   +1 more source

Comparative Study on Conductive Knitted Fabric Electrodes for Long-Term Electrocardiography Monitoring: Silver-Plated and PEDOT:PSS Coated Fabrics

Sensors, 2018
Long-term monitoring of the electrical activity of the heart helps to detect the presence of potential dysfunctions, enabling the diagnosis of a wide range of cardiac pathologies.
Amale Ankhili, Xuyuan Tao, Cédric Cochrane, Vladan Koncar, David Coulon, Jean-Michel Tarlet   +5 more
doaj   +1 more source

Interpolated-DFT-Based Fast and Accurate Amplitude and Phase Estimation for the Control of Power

, 2016
The quality of energy produced in renewable energy systems has to be at the high level specified by respective standards and directives. The estimation accuracy of grid signal parameters is one of the most important factors affecting this quality.
Borkowski, Józef, Kania, Dariusz
core   +1 more source

Signal Quality Monitoring for New GNSS Signals [PDF]

Navigation, 2018
In the context of GNSS signals and associated augmentation systems modernization, new modulations are envisaged. More precisely Galileo E1C, the pilot component of the E1 Open Service signal (CBOC(6,1,1/11) modulation), Galileo E5a and GPS L5 (BPSK(10) modulation) are signals that will be used by civil aviation airborne receivers for pseudorange ...
Jean-Baptiste Pagot, Olivier Julien, Paul Thevenon, Francisco A. Fernandez, Margaux Cabantous   +4 more
openaire   +5 more sources

A control algorithm for autonomous optimization of extracellular recordings [PDF]

, 2006
This paper develops a control algorithm that can autonomously position an electrode so as to find and then maintain an optimal extracellular recording position.
Burdick, Joel W., Nenadic, Zoran
core   +2 more sources

Advancing PPG Signal Quality and Know-How Through Knowledge Translation—From Experts to Student and Researcher

Frontiers in Digital Health, 2020
Objective: Despite the vast number of photoplethysmography (PPG) research publications and growing demands for such sensing in Digital and Wearable Health platforms, there appears little published on signal quality expectations for morphological pulse ...
Samuel Huthart, Mohamed Elgendi, Dingchang Zheng, Gerard Stansby, Gerard Stansby, John Allen, John Allen, John Allen   +7 more
doaj   +1 more source

Template-based Quality Assessment of the Doppler Ultrasound Signal for Fetal Monitoring

Frontiers in Physiology, 2017
One dimensional Doppler Ultrasound (DUS) is a low cost method for fetal auscultation. However, accuracy of any metrics derived from the DUS signals depends on their quality, which relies heavily on operator skills.
Camilo E. Valderrama, Faezeh Marzbanrad, Lisa Stroux, Gari D. Clifford, Gari D. Clifford   +4 more
doaj   +1 more source