Imaging of a diffuse object in a randomly inhomogeneous medium with amplitude distortions

An analysis is made of the influence of amplitude distortions on the intensity distribution in the image of a diffuse object obtained in a randomly inhomogeneous medium assuming that the logarithm of the amplitude distortions is normally distributed. It is shown that the distortions in this distribution depend strongly on the parameter η = ρ_α²σ²/S (ρ_α and σ are the correlation radius and variance of the logarithm of the amplitude distortions; S is the area of the receiver aperture) and also on the resolution of the receiving equipment. This conclusion is confirmed experimentally.