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Far Field Modeling of Electromagnetic Time Reversal and Application to Selective Focusing on Small Scatterers
X. Antoine, B. Pinçon, K. Ramdani, B. Thierry
Source abstract
A time harmonic far field model for closed electromagnetic time reversal mirrors is proposed. Then, a limit model corresponding to small perfectly conducting scatterers is derived. This asymptotic model is used to prove the selective focusing properties of the time reversal operator. In particular, a mathematical justification of the decomposition of the time reversal operator (DORT) method is given for axially symmetric scatterers.
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