Multiresolution time-domain analysis of plane-wave scattering from general three-dimensional surface and subsurface dielectric targets

Author

Zhu, Xianyang ; Carin, Lawrence

Author_Institution

Dept. of Electr. & Comput. Eng., Duke Univ., Durham, NC, USA

Volume

49

Issue

11

fYear

2001

fDate

11/1/2001 12:00:00 AM

Firstpage

1568

Lastpage

1578

Abstract

The multiresolution time domain (MRTD) is used to analyze wide-band plane-wave scattering from general dielectric targets embedded in a lossy half-space, with free-space scattering as a special case. A Haar wavelet expansion is used for simplicity, this constituting a generalization of the widely used finite-difference time-domain (FDTD) method. In addition to developing the mathematical formulation, example results are presented for several targets, with the MRTD results validated through comparison with an independent frequency-domain method-of-moments solution and an FDTD model

Keywords

Haar transforms; buried object detection; dielectric bodies; electromagnetic wave scattering; radar detection; radar resolution; remote sensing by radar; time-domain analysis; wavelet transforms; 3D surface dielectric targets; Haar wavelet expansion; MRTD; dielectric targets; free-space scattering; lossy half-space; multiresolution time-domain analysis; plane-wave scattering; subsurface dielectric targets; Dielectric losses; Electromagnetic scattering; Finite difference methods; Frequency domain analysis; Landmine detection; Moment methods; Radar scattering; Time domain analysis; Wavelet analysis; Wideband;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.964093

Filename

964093