Forward-backward method for scattering from imperfect conductors

Abstract

The previously developed forward-backward method for calculating scattering from perfectly conducting azimuthally homogeneous surfaces is extended to imperfect conductors, where the dielectric constant has a large imaginary part such as sea water at X-band (10 GHz). An example shows that highly accurate results at X-band are obtained for the case of a steepened sea wave.Index Terms-Sea surface electromagnetic scattering.

Numerical and experimental study of the hydrodynamic phenomena in heterogeneous sea surface EM bistatic scattering

“…The FBM has been well-discussed in [9] [10]. The integral equation of the electronic field (EFIE) for a perfect conductor (equation 2) is discrete under a matrix form (equation 3).…”

Application of the spectral acceleration forward-backward method for propagation over terrain

“…Holliday et al extended FBM to imperfect conductors in [22]. In [23], a curvature term was included in the propagator matrix for MOMI in order to eliminate the undesired sampling sensitivity effect.…”

Bistatic Scattering From Rough Dielectric Soil Surface With a Conducting Object With Arbitrary Closed Contour Partially Buried by Using the FBM/Saa Method

“…In [5] and [6], the FBM has been extended to the case of 1-D imperfect conducting rough surface with a high imaginary part of the complex dielectric constant, such as sea surface at microwave frequencies. And SAA is used to accelerated the FBM in [6].…”

“…If both two parts are only singlevalue function of abscissa x rather then multi-value function of x, for example, a conducting Six-Side Polygon Object (SSPO) (see Region 2 and 3 in Fig. 1), the aforementioned FBM(/SAA) [1][2][3][4][5][6][7][8][9][10][11][12] can't be simple used to solve the kind of composite rough surface problem, although the FBM (or equivalent MOMI) can be used to calculate scattering from closed contour of conducting object, for examples, 2-dimensional infinite elliptical cylinders ( [24] and [25]). So the FBM/SAA need be further developed by introduced new calculation technique to solve this kind of inhomogeneous composite rough surface problem.…”