Title :
A Novel Signal Processing Method for Detecting Subsurface Heterogeneities
Author_Institution :
Inst. for Radiophys. & Electron., Ukraine Nat. Acad. of Sci., Kharkov
Abstract :
The possibility to estimate subsurface structures parameters has been studied. The model describing the scattering from subsurface heterogeneities such as geological structures and wet layers has been developed. Modifications of a damped exponential model and multi-dimensional signal processing method have been applied for detecting dielectric permittivity change. Utilizing numerical simulations, a sensitivity analysis is performed to investigate the features of scattered pattern. The dependence of the received signal on the properties of an inhomogeneous and homogeneous media, upper and buried rough surfaces has been studied. It has been found that the method is to be very sensitive to the change of the dielectric permittivity and can be used as a new tool to map subsurface wet layers and geological interfaces
Keywords :
electromagnetic wave scattering; multidimensional signal processing; permittivity; rough surfaces; surface electromagnetic waves; buried rough surfaces; dielectric permittivity change detection; multidimensional signal processing method; scattering; signal processing method; subsurface heterogeneities detection; Dielectrics; Geology; Multidimensional signal processing; Nonhomogeneous media; Numerical simulation; Parameter estimation; Permittivity; Scattering; Sensitivity analysis; Signal processing;
Conference_Titel :
Applied Electromagnetics and Communications, 2005. ICECom 2005. 18th International Conference on
Conference_Location :
Dubrovnik
Print_ISBN :
953-6037-44-0
DOI :
10.1109/ICECOM.2005.204990