HIGH RESOLUTION NEAR-FIELD ELECTROMAGNETIC HOLOGRAPHY FOR DYNAMIC SOURCE IDENTIFICATION IN UNDERWATER MEDIUMS | Zendy

Hatim F. Alqadah | Zendy; Nicolas Valdivia | Zendy; Earl G. Williams | Zendy

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HIGH RESOLUTION NEAR-FIELD ELECTROMAGNETIC HOLOGRAPHY FOR DYNAMIC SOURCE IDENTIFICATION IN UNDERWATER MEDIUMS

Author(s) -

Hatim F. Alqadah,

Nicolas Valdivia,

Earl G. Williams

Publication year - 2016

Publication title -

progress in electromagnetics research b

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.208

H-Index - 47

ISSN - 1937-6472

DOI - 10.2528/pierb15101405

Subject(s) - underwater , holography , identification (biology) , near and far field , resolution (logic) , field (mathematics) , high resolution , computer science , electromagnetic field , geology , optics , acoustics , remote sensing , physics , artificial intelligence , oceanography , mathematics , biology , quantum mechanics , botany , pure mathematics

This paper investigates the source reconstruction problem in underwater mediums using a compressive Near-Field Electromagnetic Holography (NEH) approach. More specifically we investigate the use of 1 regularization for the purpose of decomposing near-field magnetic and/or electric surface measurements into electric and magnetic dipole sources. Our study indicates that not only do 1 decompositions enable much higher resolution of sources than traditional 2 approaches, but important features of the dipoles are preserved in the reconstruction. Our hypothesis are supported by numerical experiments as well as underwater physical measurements obtained in an earth field simulator facility.

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