We introduced in [arXiv:1106.3204] a method to locate discontinuities of a wave speed in dimension two from acoustic boundary measuments modelled by the hyperbolic Neumann-to-Dirichlet operator. Here we extend the method for sound hard obstacles in arbitrary dimension. We present numerical experiments with simulated noisy data suggesting that the method is robust against measurement noise.
On uniqueness in the inverse obstacle problem via the positive supersolutions of the Helmholtz equation
Stability in the determination of a time-dependent coefficient for wave equations from partial data
Stability of the determination of a coefficient for the wave equation in an infinite wave guide
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