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arXiv physics/0502124physics.opticsphysics.class-ph
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Superresolution and Duality for Time-Reversal of Waves in Self-Similar Media

Albert Fannjiang, Knut Solna

英文摘要:

We analyze the time reversal of waves in a turbulent medium using the parabolic Markovian model. We prove that the time reversal resolution can be a nonlinear function of the wavelength and independent of the aperture. We establish a duality relation between the turbulence-induced wave spread and the time-reversal resolution which can be viewed as an uncertainty inequality for random media. The inequality becomes an equality when the wave structure function is Gaussian.

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