Modelling of air-soil interface clutter for ultrawideband radar

Author

Lostanlen, Yves ; Griffiths, H.D. ; Uguen, Bernard ; Chassay, Gérard

Author_Institution

Univ. Coll. London, UK

fYear

2000

fDate

2000

Firstpage

365

Lastpage

369

Abstract

This paper presents our global approach to model ultra-wideband (UWB) clutter. In this approach, we consider plane wave scattering (in the time domain) from a rough air-soil interface. The time-domain scattering is computed via two different techniques. The first one is a two-dimensional (2D) finite difference time domain (FDTD) algorithm, which is particularly well adapted to frequency-dependent subsoils. The second method is processed in the frequency domain prior to a discrete Fourier transform (DFT) which is performed to come back to the time domain. With this last method, we can integrate system parameters and statistically rough surfaces into our model

Keywords

discrete Fourier transforms; electromagnetic wave scattering; finite difference time-domain analysis; radar clutter; radar theory; rough surfaces; soil; 2D finite difference time domain; DFT; UWB clutter; discrete Fourier transform; frequency-dependent subsoils; plane wave scattering; rough air-soil interface; statistically rough surfaces; system parameters; time-domain scattering; two-dimensional FDTD; ultra-wideband radar; Clutter; Discrete Fourier transforms; Finite difference methods; Frequency domain analysis; Radar scattering; Rough surfaces; Surface roughness; Time domain analysis; Ultra wideband radar; Ultra wideband technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar Conference, 2000. The Record of the IEEE 2000 International

Conference_Location

Alexandria, VA

Print_ISBN

0-7803-5776-0

Type

conf

DOI

10.1109/RADAR.2000.851861

Filename

851861