Dynamic time warping as an alternative to windowed cross correlation in seismological applications

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F22%3A00557352" target="_blank" >RIV/67985530:_____/22:00557352 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.geoscienceworld.org/ssa/srl/article/93/3/1909/612803/Dynamic-Time-Warping-as-an-Alternative-to-Windowed" target="_blank" >https://pubs.geoscienceworld.org/ssa/srl/article/93/3/1909/612803/Dynamic-Time-Warping-as-an-Alternative-to-Windowed</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1785/0220210288" target="_blank" >10.1785/0220210288</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dynamic time warping as an alternative to windowed cross correlation in seismological applications

Popis výsledku v původním jazyce

We investigate the feasibility of using the dynamic time warping (DTW) technique as an alternative to windowed cross correlation (WCC) for an indirect measure to quantify both the similarity and relationship between two seismic time series. We first examine the sensitivity and performance of the DTW technique by analyzing both synthetic and real seismic time series in geophysical applications. Results show that DTW efficiently retrieves useful information from seismic data and has a high sensitivity to minor variations in time series that WCC fails to detect. We further propose four potential applications of DTW to routine seismic data interpretation-earthquake detection, template matching, clustering of waveforms, and full-waveform inversion for 1D velocity models. The earthquake detection scheme employing DTW is proposed in this study as an alternative to traditional methods. The accuracy of DTW in estimating similarity is explored for template matching and clustering of seismic traces. Finally, we discuss a realistic example of 1D Earth velocity model inversion using DTW and explore its feasibility in full-waveform inversion.

Název v anglickém jazyce

Dynamic time warping as an alternative to windowed cross correlation in seismological applications

Popis výsledku anglicky

We investigate the feasibility of using the dynamic time warping (DTW) technique as an alternative to windowed cross correlation (WCC) for an indirect measure to quantify both the similarity and relationship between two seismic time series. We first examine the sensitivity and performance of the DTW technique by analyzing both synthetic and real seismic time series in geophysical applications. Results show that DTW efficiently retrieves useful information from seismic data and has a high sensitivity to minor variations in time series that WCC fails to detect. We further propose four potential applications of DTW to routine seismic data interpretation-earthquake detection, template matching, clustering of waveforms, and full-waveform inversion for 1D velocity models. The earthquake detection scheme employing DTW is proposed in this study as an alternative to traditional methods. The accuracy of DTW in estimating similarity is explored for template matching and clustering of seismic traces. Finally, we discuss a realistic example of 1D Earth velocity model inversion using DTW and explore its feasibility in full-waveform inversion.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10507 - Volcanology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Seismological Research Letters

ISSN

0895-0695

e-ISSN

1938-2057

Svazek periodika

93

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

1909-1921

Kód UT WoS článku

000792441000003

EID výsledku v databázi Scopus

2-s2.0-85130095208