1 citations · 1 across the 2 of their papers we have counts for
5 papers
Stability of time reversed waves in changing media
Guillaume Bal, Lenya Ryzhik
We analyze the refocusing properties of time reversed waves that propagate in two different media during the forward and backward stages of a time-reversal experiment. We consider…
Self-averaging in time reversal for the parabolic wave equation
Guillaume Bal, George Papanicolaou, Leonid Ryzhik
We analyze the self-averaging properties of time-reversed solutions of the paraxial wave equation with random coefficients, which we take to be Markovian in the direction of propag…
Time Reversal for Waves in Random Media
Guillaume Bal, Leonid Ryzhik
In time reversal acoustics experiments, a signal is emitted from a localized source, recorded at an array of receivers-transducers, time reversed, and finally re-emitted into the m…
Time Reversal for Classical Waves in Random Media
Guillaume Bal, Leonid Ryzhik
We propose a mathematical theory for the refocusing properties observed in time-reversal experiments, where classical waves propagate through a medium, are recorded in time, then t…
Capillary-gravity wave transport over spatially random drift
Guillaume Bal, Tom Chou
We derive transport equations for the propagation of water wave action in the presence of a static, spatially random surface drift. Using the Wigner distribution $\W(\x,\k,t)$ to r…