Abstract

The modification of the Kirchoff approximation theory for rough surface scattering by an incident Gaussian beam instead of a plane wave is developed based on conventional Kirchoff scattering theory and a plane wave spectrum expansion method. A close form for the normalized coherent scattering cross section is derived when the linear dimension of a rough surface patch is twice as large as the beam size. It is shown that provided the incident Gaussian beam size is much larger compared with the surface height correlation length, the normalized scattering cross section is the same as for an incident plane wave.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.