Asymptotics of the field diffracted on a smooth convex body near the edge of a nonsingular coustic

The standard problem method is applied to construct the acoustic field asymptotics near the edge of the caustic formed by a wave diffracted on a smooth body. The field is represented by a Fresnel part and a background. Explicit formulas for the terms being a submitance of the Fresnel part and the background are obtained. Analiticity of these terms is proved.