Analysis of electromagnetic backscattering data using wavelets

Author

Kim, H. ; Ling Hao

Author_Institution

Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX, USA

fYear

1992

fDate

18-25 June 1992

Firstpage

1877

Abstract

A wavelet analysis of backscattering data is presented. In contrast to the RWFT (running window Fourier transform), the wavelet transform technique has a multiresolution property through the use of multiscale windows. Therefore, multiscale events in the frequency data can be more effectively resolved in the time-frequency plane by the wavelet transform. Results for an open-ended waveguide cavity and a dispersive plasma cylinder are presented. From the two examples considered, it is observed that the wavelet transform provides good resolution in simultaneously identifying the scattering centers and resolving the resonant phenomena of the target, while adequately describing the dispersive scattering mechanisms in the intermediate region.<>

Keywords

backscatter; electromagnetic wave propagation in plasma; electromagnetic wave scattering; waveguide theory; wavelet transforms; dispersive plasma cylinder; dispersive scattering mechanisms; electromagnetic backscattering; multiresolution property; multiscale events; multiscale windows; open-ended waveguide cavity; resonant phenomena; time-frequency plane; wavelet analysis; wavelet transform; Backscatter; Data analysis; Dispersion; Electromagnetic analysis; Electromagnetic scattering; Electromagnetic waveguides; Fourier transforms; Time frequency analysis; Wavelet analysis; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE

Conference_Location

Chicago, IL, USA

Print_ISBN

0-7803-0730-5

Type

conf

DOI

10.1109/APS.1992.221707

Filename

221707