Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Angular correlation function and scattering coefficient of electromagnetic waves scattered by a buried object under a two-dimensional rough surface

Not Accessible

Your library or personal account may give you access

Abstract

We study three-dimensional (3-D) electromagnetic wave scattering from a buried object under a two-dimensional (2-D) random rough surface. The surface integral equations of wave fields are used for the rough surface and the surface of the buried object. The surface fields are then solved by the method of moments. The scattered wave field from the object is represented by the rough-surface field so that the matrix equation can be solved efficiently by means of the sparse-matrix canonical-grid method. Numerical simulations are illustrated for a perfectly conducting sphere buried under a 2-D rough surface. Both the scattering coefficient (normalized radar cross section) and the angular correlation function (ACF) are calculated. The study of 3-D electromagnetic scattering allows the use of azimuthal angular averaging and the study of cross polarization and the polarization angular correlation function (PACF). It is found that the ACF is more effective in suppressing the clutter that is due to the rough-surface scattering, and the PACF is more useful for the detection of the buried object.

© 1998 Optical Society of America

Full Article  |  PDF Article
More Like This

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (43)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved