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A note on corrections often used in two‐scale surface‐scattering models
Author(s) -
Craeye Christophe,
Guissard Albert,
Sobieski Piotr
Publication year - 2000
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/1999rs002243
Subject(s) - scale (ratio) , scattering , lossy compression , surface (topology) , simplicity , statistical physics , scale model , length scale , mathematics , computational physics , computer science , physics , optics , geometry , statistics , quantum mechanics , aerospace engineering , engineering
Two‐scale models have been used for nearly two decades to estimate the scattering properties of rough surfaces described by their spectrum. Nevertheless, the solutions proposed in the literature present numerous differences. Through a rigorous treatment of the large‐scale slopes we explain why some popular correcting factors actually should be omitted. Besides its simplicity, the resulting model is not restricted to situations where the large‐scale process has small slopes. The proof is given for the general case of bistatic scattering from lossy dielectric surfaces.