Noise level estimation using haar wavelet packet trees for sensor robust outlier detection
Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
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Computational Science and Its Applications – ICCSA 2006: international conference, Glasgow, UK, May 8 - 11, 2006; proceedings. ed. / Marina Gavrilova; Osvaldo Gervasi; Vipin Kumar; C.J. Kenneth Tan; David Taniar; Antonio Laganà; Youngsong Mun; Hyunseung Choo. Vol. 1 Berlin: Springer, 2006. p. 847-856 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 3980 LNCS).
Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
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TY - CHAP
T1 - Noise level estimation using haar wavelet packet trees for sensor robust outlier detection
AU - Mercorelli, Paolo
AU - Frick, Alexander
N1 - Conference code: 6
PY - 2006/1/1
Y1 - 2006/1/1
N2 - The paper is related to the on-line noise variance estimation. In practical use, it is important to estimate the noise level from the data rather than to assume that the noise level is known. The paper presented a free thresholding method related to the on-line peak noise variance estimation even for signal with small S/N ratio. The basic idea is to characterize the noise like an incoherent part of the measured signal. This is performed through the wavelet tree by choosing the subspaces where the median value of the wavelet components has minimum. The paper provides to show nice general properties of the wavelet packets on which the proposed procedure is based. The developed algorithm is totally general even though is applied by using Haar wavelet packets and it is present in some industrial software platforms to detect sensor outliers. More, it is currently integrated in the inferential modeling platform of the Advanced Control and Simulation Solution Responsible Unit within ABB’s industry division.
AB - The paper is related to the on-line noise variance estimation. In practical use, it is important to estimate the noise level from the data rather than to assume that the noise level is known. The paper presented a free thresholding method related to the on-line peak noise variance estimation even for signal with small S/N ratio. The basic idea is to characterize the noise like an incoherent part of the measured signal. This is performed through the wavelet tree by choosing the subspaces where the median value of the wavelet components has minimum. The paper provides to show nice general properties of the wavelet packets on which the proposed procedure is based. The developed algorithm is totally general even though is applied by using Haar wavelet packets and it is present in some industrial software platforms to detect sensor outliers. More, it is currently integrated in the inferential modeling platform of the Advanced Control and Simulation Solution Responsible Unit within ABB’s industry division.
KW - Engineering
KW - Noise Variance
KW - Wavelet Packet
KW - Minimum Description Length
KW - Thresholding Method
KW - Wavelet Shrinkage
UR - http://www.scopus.com/inward/record.url?scp=33745951086&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/b1d00728-717d-328c-aacf-48cecd84b6e7/
U2 - 10.1007/11751540_92
DO - 10.1007/11751540_92
M3 - Article in conference proceedings
SN - 3-540-34070-X
SN - 978-3-540-34070-6
VL - 1
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 847
EP - 856
BT - Computational Science and Its Applications – ICCSA 2006
A2 - Gavrilova, Marina
A2 - Gervasi, Osvaldo
A2 - Kumar, Vipin
A2 - Tan, C.J. Kenneth
A2 - Taniar, David
A2 - Laganà, Antonio
A2 - Mun, Youngsong
A2 - Choo, Hyunseung
PB - Springer
CY - Berlin
T2 - International Conference on Computational Science and Its Applications - ICCSA 2006
Y2 - 8 May 2006 through 11 May 2006
ER -