ABSTRACT

Since the incident and reected rays lie on the same plane with the normal to the surface at the reecting point ny0 , formulas (6.110)–(6.111) lead to the following basic integral representation (after taking nonoscillating terms outside of the integral, in the considered short›wave approximation:

psc(x) = ik cosγ 4piL0L

eikS(y) dsy, S(y) = r0 + r = |x0 – y| + |x – y|, L0 = |x0 – y0|, L = |x – y0|.