Title :
Estimation of permittivity and conductivity in dispersive and attenuating media using multifrequency technique
Author :
Pastor, F. J Ferrández ; Chamizo, J. M García
Author_Institution :
Dept. Tecnologia Informatica y Computacion, Alicante Univ., Spain
Abstract :
This article proposes a technique based on multifrequency pulses, which are used to determine values for the physical medium interacting with the transmission of the electromagnetic waves. Parameters such as relative permittivity measurements of pulses at different frequencies. The proposed method has been simulated in a Debye medium where the relation between lineal dispersion and conductivity is known. The FDTD numerical method is used to calculate time lags and amplitudes in the electric field, providing data about propagating different signals in the medium given. Described here is a new technique for the study and treatment of electromagnetic wave interaction with the medium.
Keywords :
absorbing media; electromagnetic wave propagation; finite difference time-domain analysis; geophysical techniques; permittivity; remote sensing; Debye medium; amplitudes; attenuating media; conductivity estimation; dispersive media; electric field; electromagnetic waves; finite-difference time-domain analysis; lineal dispersion; multifrequency analysis; multifrequency pulses; multifrequency technique; permittivity estimation; relative permittivity; time lags; Conductivity; Dispersion; EMP radiation effects; Electromagnetic propagation; Electromagnetic scattering; Finite difference methods; Frequency; Permittivity measurement; Pulse measurements; Time domain analysis;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International
Print_ISBN :
0-7803-7929-2
DOI :
10.1109/IGARSS.2003.1294023