Title :
A study of scattering from an object below a rough surface
Author :
Johnson, J.T. ; Burkholder, R.J.
Author_Institution :
ElectroScience Lab., Ohio State Univ., Columbus, OH, USA
Abstract :
The prediction of scattering from an object located beneath a rough interface is a subject of recent interest, particularly due to applications in the detection of sub-surface objects with radar systems. In this paper, a numerical study of scattering from a three dimensional penetrable object located below a lossy dielectric rough interface is performed A generalized example problem is considered to provide an illustration of some of the coherent and incoherent scattering effects which can occur, and to investigate the performance of some simple approximations for these quantities. A Monte Carlo simulation is used to obtain scattered field statistics as a function of frequency from 2.2 to 5 GHz, and results are illustrated in both the frequency and time domains to clarify the scattering physics.
Keywords :
Gaussian processes; Monte Carlo methods; electromagnetic wave scattering; radar cross-sections; rough surfaces; 2.2 to 5 GHz; Gaussian random process; Monte Carlo simulation; coherent scattering effects; heuristic scale factor; incoherent scattering effects; lossy dielectric interface; radar cross sections; rough interface; scattered field statistics; scattering prediction; subsurface objects; three dimensional penetrable object; Dielectric losses; Frequency; Object detection; Performance loss; Radar applications; Radar detection; Radar scattering; Rough surfaces; Statistics; 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.2003.1219875
