Modelling surface scattering at grazing incidence

The radar cross section from a rough surface becomes very small at grazing incidence, since most part of the energy travels in the forward direction. Therefore, building a model that can estimate it accurately is challenging. Here, a rigorous model is suggested, based on a specific integral formalism. Comparisons with approximate methods have been performed to estimate their range of validity at grazing incidence. The case of sea surface is also investigated.

[1]  Bo Zhang,et al.  Multilevel expansion of the sparse-matrix canonical grid method for two-dimensional random rough surfaces , 2001 .

[2]  G. Soriano,et al.  Scattering of electromagnetic waves from two-dimensional rough surfaces with an impedance approximation. , 2001, Journal of the Optical Society of America. A, Optics, image science, and vision.

[3]  Stephan Guignard,et al.  Local and non-local curvature approximation: a new asymptotic theory for wave scattering , 2003 .

[4]  K. Katsaros,et al.  A Unified Directional Spectrum for Long and Short Wind-Driven Waves , 1997 .

[5]  M. Saillard,et al.  Scattering of Electromagnetic Waves From Rough Surfaces: A Boundary Integral Method for Low-Grazing Angles , 2008, IEEE Transactions on Antennas and Propagation.

[6]  Akira Ishimaru,et al.  Rough surface Green's function based on the first-order modified perturbation and smoothed diagram methods , 2000 .

[7]  V. I. Tatarskii,et al.  On the universal behavior of scattering from a rough surface for small grazing angles , 1998 .

[8]  A. Voronovich.  Small-slope approximation for electromagnetic wave scattering at a rough interface of two dielectric , 1994 .

[9]  D. Holliday,et al.  Forward-backward: a new method for computing low-grazing angle scattering , 1996 .

[10]  A. Ishimaru,et al.  Transverse electric and transverse magnetic Green's function for coherent and incoherent propagation over a finitely conducting rough surface , 2002 .

[11]  M. Saillard,et al.  Rigorous solutions for electromagnetic scattering from rough surfaces , 2001 .

[12]  TE and TM Green ’ s Function for Coherent and Incoherent Propagation over a Finitely Conducting Rough Surface , 2002 .

[13]  Universal behaviour of scattering amplitudes for scattering from a plane in an average rough surface for small grazing angles , 1998 .

[14]  G. Brown,et al.  A new numerical method for rough-surface scattering calculations , 1996 .