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D.O.R.T. method as applied to electromagnetic subsurface sensing
Author(s) -
Micolau G.,
Saillard M.
Publication year - 2003
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/2000rs002590
Subject(s) - operator (biology) , embedding , polarization (electrochemistry) , ambiguity , simple (philosophy) , algorithm , electromagnetic radiation , focus (optics) , computer science , physics , mathematics , optics , mathematical analysis , artificial intelligence , biochemistry , chemistry , philosophy , repressor , epistemology , transcription factor , gene , programming language
The decomposition of the time reversal operator (D.O.R.T.) method allows detection and localization of point‐like scatterers through a very simple and robust process. Here, with the aim of applying this method to the detection and the localization of buried objects, we focus on the influence of the restriction of the measurements to a line of receivers. The finite size of the objects is also taken into account, as well as losses in the embedding medium. A simple behavior of the time reversal operator is exhibited, almost independent of the polarization, which permits one to detect scatterers in the resonance domain, with very low ambiguity. Experimental data obtained in an anechoïc chamber confirm our theoretical predictions.