Note: Localization based on estimated source energy homogeneity | Zendy

Semih Turkaya | Zendy; Renaud Toussaint | Zendy; Fredrik Kvalheim Eriksen | Zendy; Olivier Lengliné | Zendy; Guillaume Daniel | Zendy; Eirik G. Flekkøy | Zendy; Knut Jørgen Måløy | Zendy

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Note: Localization based on estimated source energy homogeneity

Author(s) -

Semih Turkaya,

Renaud Toussaint,

Fredrik Kvalheim Eriksen,

Olivier Lengliné,

Guillaume Daniel,

Eirik G. Flekkøy,

Knut Jørgen Måløy

Publication year - 2016

Publication title -

review of scientific instruments

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.605

H-Index - 165

eISSN - 1089-7623

pISSN - 0034-6748

DOI - 10.1063/1.4962407

Subject(s) - homogeneity (statistics) , amplitude , computer science , attenuation , minification , acoustics , energy (signal processing) , accelerometer , inversion (geology) , signal processing , algorithm , physics , optics , telecommunications , geology , paleontology , radar , quantum mechanics , structural basin , machine learning , programming language , operating system

International audienceAcoustic signal localization is a complex problem with a wide range of industrial and academic applications. Herein, we propose a localization method based on energy attenuation and inverted source amplitude comparison (termed estimated source energy homogeneity, or ESEH). This inversion is tested on both synthetic (numerical) data using a Lamb wave propagation model, and experimental 2D plate data (recorded with 4 accelerometers sensitive up to 26 kHz). We compare the performance of this technique with classic source localization algorithms: arrival time localization, time reversal localization, and localization based on energy amplitude. Our technique is highly versatile, and out-performs the conventional techniques in terms of error minimization and cost (both computational and financial)

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