SCATTERING OF PLANE-WAVES FROM LAYERED MEDIA WITH A ROUGH INTERFACE

Scattering of acoustic plane waves from a multi-layer medium with a ro ugh interface is studied theoretically and numerically in the present paper. The solution is based upon a multi-layer wave reflection model and a single rough interface scattering model. A Gaussian and random r oughness is assumed for the rough interface. It turns out that the rms -height (h) and the correlation-length (L) of the rough interface are the two governing parameters for the scattered wave field. The scatter ed wave field is compared with the basic reflection pattern from a mul ti-layer model without interface roughnesses. The present model forms a good analogy to a layered seabed or a layered ice structure.