Title :
Scattering by partially buried cylinders at the rough surface interface between two media
Author :
Xiande Wang ; Yeow-Beng Gan ; Le-Wei Li
Author_Institution :
Temasek Labs., Nat. Univ. of Singapore, Singapore
Abstract :
The prediction of electromagnetic scattering from rough surface and subsurface targets has been a problem of long-term interest, as the targets above or below the rough surface are affected by the surrounding medium. The fact that a combined object and rough surface scattering mode can be applied to studies of landmine detection, foliage and surface remote sensing, or target detection and signal processing problems provides further motivation for model development. The contribution from the rough surface can significantly modify the scattering from the target, as compared to that from a flat surface. Some approximate analytical solutions can only be found in the case of small roughness limit The development of numerical models is therefore of interest since these models avoid unnecessary approximations and thus can clarify important scattering effects where analytical methods failed. However, to the authors´ knowledge, the electromagnetic scattering by partially buried cylinders at the dielectric rough surface interface between two media was not investigated. This problem will be discussed here, by means of the method of moments with point-matching and pulse basis functions.
Keywords :
Gaussian distribution; electromagnetic wave scattering; method of moments; rough surfaces; Gaussian distribution; electromagnetic scattering; method of moments; partially buried cylinders; point-matching functions; pulse basis functions; random rough surface; rough surface interface; Dielectrics; Electromagnetic scattering; Failure analysis; Landmine detection; Numerical models; Object detection; Remote sensing; Rough surfaces; Signal processing; Surface roughness;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1219878