A linear sampling method for inverse acoustic scattering by a locally rough interface

<p style='text-indent:20px;'>This paper is concerned with the inverse problem of time-harmonic acoustic scattering by an unbounded, locally rough interface which assumed to be a local perturbation plane. The purpose this recover from near-field measurement given on straight line segment finite distance above and generated point sources. Precisely, we propose novel version linear sampling method location shape numerically. Our based modified operator equation associated special surface, constructed reformulating forward into equivalent integral formulation in bounded domain, leading fast imaging algorithm. Numerical experiments are presented illustrate effectiveness method.</p>