A denoising procedure using wavelet packets for instantaneous detection of pantograph oscillations
Publikation: Beiträge in Zeitschriften › Zeitschriftenaufsätze › Forschung › begutachtet
Standard
in: Mechanical Systems and Signal Processing, Jahrgang 35, Nr. 1-2, 02.2013, S. 137-149.
Publikation: Beiträge in Zeitschriften › Zeitschriftenaufsätze › Forschung › begutachtet
Harvard
APA
Vancouver
Bibtex
}
RIS
TY - JOUR
T1 - A denoising procedure using wavelet packets for instantaneous detection of pantograph oscillations
AU - Mercorelli, P.
N1 - Copyright 2012 Elsevier B.V., All rights reserved.
PY - 2013/2
Y1 - 2013/2
N2 - This paper presents a robust online denoising algorithm for use in the online, instantaneous detection of changing harmonic signals. This algorithm uses a classical time correlation function (scalar product). For instantaneous frequency detection, a short window is considered. It is known that cleaned signals are required to determine the correct correlation between short signals. The measured signal is cleaned by the proposed noise removal algorithm, which uses wavelet packets. The proposed cleaning method avoids classical thresholding techniques. Computer simulations that validate the procedure are shown.
AB - This paper presents a robust online denoising algorithm for use in the online, instantaneous detection of changing harmonic signals. This algorithm uses a classical time correlation function (scalar product). For instantaneous frequency detection, a short window is considered. It is known that cleaned signals are required to determine the correct correlation between short signals. The measured signal is cleaned by the proposed noise removal algorithm, which uses wavelet packets. The proposed cleaning method avoids classical thresholding techniques. Computer simulations that validate the procedure are shown.
KW - Engineering
KW - Noise detection
KW - Oscillation detection
KW - Pantograph control
KW - Wavelets
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-84870450018&origin=inward&txGid=0
U2 - 10.1016/j.ymssp.2012.09.001
DO - 10.1016/j.ymssp.2012.09.001
M3 - Journal articles
VL - 35
SP - 137
EP - 149
JO - Mechanical Systems and Signal Processing
JF - Mechanical Systems and Signal Processing
SN - 0888-3270
IS - 1-2
ER -