A Two-scale Model for Composite Rough Surface Scattering
A new two-scale model is proposed for wave scattering from a composite surface. For each single scale surface roughness, we use a weighted sum of the newly developed statistical integral equation model and the second-order small slope approximation. With these two unifying models collaborating at each scale, this proposed compound model may capture the actual scattering mechanisms and lead to more accurate predictions. It holds the potential to bridge the gap between the regions of validity of the Kirchhoff approximation and the small perturbation model.The chosen simulation parameters suggest that the new two-scale model holds the potential to expand the validity regions of both its large scale and small scale components. The new model may have promising applications for effectromagnetic scattering from the ocean surface, whose entire roughness spectrum can be discomposed into small-and large-scale components.
W. Z. Yan L. X. Xu Y. Du F. Sheng Z. N. Li J. A. Kong
The Electromagnetics Academy at Zhejiang University, Hangzhou 310058, China Massachusetts Institute of Technology, Boston 02139-4307, USA
国际会议
Progress in Electromagnetics Research Symposium 2007(2007年电磁学研究新进展学术研讨会)(PIERS 2007)
北京
英文
2065-2068
2007-03-26（万方平台首次上网日期，不代表论文的发表时间）