volume | PIER Journals

Abstract

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 ℓ₁ 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 ℓ₁ decompositions enable much higher resolution of sources than traditional ℓ₂ 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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Dr. Hatim F. Alqadah

Dr. Nicolas P. Valdivia

Dr. Earl G. Williams