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Mostrando ítems 1-10 de 2097
Feature extraction in pressure signals for leak detection in water networks
(2014)
Techniques based on signal analysis for leak detection in water supply systems typically use long pressure and/or flow data series of variable length. This paper presents the feature extraction from pressure signals and ...
Signals in Communication Engineering History
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2010)
This paper is a study of various electric signals, which have been employed throughout the history of communication engineering in its two main landmarks: the telegraph and the telephone. The signals are presented in their ...
Time - Frequency analysis of biosignals
(2009-09-01)
Comparative analysis of signal processing techniques for impedance-based SHM applications in noisy environments
(2019-07-01)
Structural health monitoring (SHM) systems have been extensively studied in recent decades to determine the health statuses of mechanical, naval and aerospace engineering components. Currently, one of the most promising ...
Detection of Auditory Cortex Activity by fMRI Using a Dependent Component Analysis
(SPRINGER-VERLAG BERLIN, 2010)
Functional MRI (fMRI) data often have low signal-to-noise-ratio (SNR) and are contaminated by strong interference from other physiological sources. A promising tool for extracting signals, even under low SNR conditions, ...
In-process grinding monitoring through acoustic emission
(2006-01-01)
This work aims to investigate the efficiency of digital signal processing tools of acoustic emission signals in order to detect thermal damages in grinding processes. To accomplish such a goal, an experimental work was ...
Accurate detection of spread-spectrum modulated signals in reverberant underwater environments
(Elsevier, 2015-02)
In those positioning systems based on the detection of acoustic signals, an accurate detection of the arrival times is crucial for a correct estimation of the distance between nodes, and therefore, for the precise estimation ...
Reinforcement and Punishment in Behavioral Models of Signal DetectionReforzamiento y castigo en modelos conductuales de detección de señales
(Sociedad Mexicana de Análisis de la Conducta / Mexican Society of Behavior Analysis, 2010)
Rotor failure detection of induction motors by wavelet transform and Fourier transform in non-stationary condition
(2015-07-01)
This case study presents two diagnostic methods for the detection of broken bars in inductionmotors with squirrel-cage type rotors: FFT method and waveletmethod. The FFT method allows detecting broken rotor bar when the ...