Now showing items 1-4 of 4
An Algorithm for Thresholding in the Context of Signal Denoising with Wavelets
("Dunarea de Jos" University of Galati, 2008)
The problem of estimating a signal corrupted by additive noise has been of interest to many researchers for practical as well as theoretical reasons. Wavelet based methods have become increasingly popular, due to a number ...
On the harmonics reduction using wavelet based signal processing
("Dunarea de Jos" University of Galati, 2000)
This paper presents a method for calculating the reference currents needed for the command of an active filter. By using the Discrete Wavelet Transform (DWT) the high-frequency components of the currents are eliminated. ...
Evaluation of two Algorithms for Change Detection Based on Vibration Signals Processing
(Universitatea "Dunărea de Jos" din Galați, 2017)
Change detection and diagnosis are important activities and research directions, in the field of system engineering and conditional maintenance of the equipment and industrial processes. The processed signals are coming ...
Artifacts Removing in Ultrasonic Images by Fusion Processes
("Dunarea de Jos" University of Galati, 2013)
Allmost airborne ultrasonic images used in robotics have artefacts and distorstions, when comparing real objects with those presented in ultrasonic images. The differences between reral and reference images have various ...