Algorithm to Compute of the Spatial-Frequency Characteristic

The mathematical models of the influence functions (IFs) for general bound-aryvalue problem in the transfer theory for a plane layer with a reflecting bottom and with a dividing border of two media, refracting and reflecting of a radiation. In the case of the horizontally inhomogeneous borders the fundamental solution can (define) determine by Fourier transform method. The mathematical models of the spatial-frequency characteristics (SFCs) - the IF's Fourier image in horizontal coordinates were derived. The algorithm to compute of the spatial-frequency characteristic as the numerical solution of the complex transfer equation presented.