Seismic detection and time of arrival estimation in noisy environments based on the haar wavelet transform

Thanasopoulos, IA; Avaritsiotis, JN

dc.contributor.author	Thanasopoulos, IA	en
dc.contributor.author	Avaritsiotis, JN	en
dc.date.accessioned	2014-03-01T02:45:47Z
dc.date.available	2014-03-01T02:45:47Z
dc.date.issued	2008	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/32386
dc.subject	a priori knowledge	en
dc.subject	Computational Complexity	en
dc.subject	Computer Program	en
dc.subject	Discrete Wavelet Transform	en
dc.subject	Event Detection	en
dc.subject	Haar Wavelet	en
dc.subject	Haar Wavelet Transform	en
dc.subject	Seismic Waves	en
dc.subject	Sensor Network	en
dc.subject	Source Localization	en
dc.subject	Time of Arrival	en
dc.subject	Time Domain	en
dc.subject.other	Acoustic microscopes	en
dc.subject.other	Amplitude modulation	en
dc.subject.other	Chemical sensors	en
dc.subject.other	Chlorine compounds	en
dc.subject.other	Computational complexity	en
dc.subject.other	Discrete wavelet transforms	en
dc.subject.other	Electric fault currents	en
dc.subject.other	Estimation	en
dc.subject.other	Feature extraction	en
dc.subject.other	Method of moments	en
dc.subject.other	Missile bases	en
dc.subject.other	Seismic waves	en
dc.subject.other	Seismology	en
dc.subject.other	Sensor arrays	en
dc.subject.other	Sensor networks	en
dc.subject.other	Sensors	en
dc.subject.other	Signal processing	en
dc.subject.other	Wavelet transforms	en
dc.subject.other	A-priori	en
dc.subject.other	Computer programs	en
dc.subject.other	Discrete-wavelet-transform	en
dc.subject.other	Event detection	en
dc.subject.other	Extraction of information	en
dc.subject.other	Haar wavelet transforms	en
dc.subject.other	HAAR wavelets	en
dc.subject.other	Multichannel signal processing	en
dc.subject.other	Noisy environments	en
dc.subject.other	Seismic detection	en
dc.subject.other	Seismic signals	en
dc.subject.other	Simulation results	en
dc.subject.other	Source localization	en
dc.subject.other	Spectral characteristics	en
dc.subject.other	Time domain OCT	en
dc.subject.other	Time domains	en
dc.subject.other	Time-of-arrival	en
dc.subject.other	Time-of-arrival estimation	en
dc.subject.other	Transient signals	en
dc.subject.other	Time domain analysis	en
dc.title	Seismic detection and time of arrival estimation in noisy environments based on the haar wavelet transform	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/SAM.2008.4606906	en
heal.identifier.secondary	http://dx.doi.org/10.1109/SAM.2008.4606906	en
heal.identifier.secondary	4606906	en
heal.publicationDate	2008	en
heal.abstract	In this paper we propose a discrete wavelet transform (DWT) method for event detection and estimation of the time of arrival (TOA) of seismic signals in a sensor network. The Haar wavelet is selected for its low computational complexity and its good locality in time domain which is essential for the analysis of transient signals. The proposed method requires no a priori knowledge about the spectral characteristics of the signals, because the algorithm defines the optimum scales for the extraction of information by time-domain features as the signal is acquired. The performance of the algorithm is verified using a computer program that simulates the propagation of surface seismic waves. Simulation results corroborate the suitability of the proposed method for source localization applications. © 2008 IEEE.	en
heal.journalName	SAM 2008 - 5th IEEE Sensor Array and Multichannel Signal Processing Workshop	en
dc.identifier.doi	10.1109/SAM.2008.4606906	en
dc.identifier.spage	433	en
dc.identifier.epage	436	en