Analysis of foliage-induced synthetic pattern distortions

Author

Toups, M.F. ; Ayasli, S. ; Fleischman, J.G.

Author_Institution

Lincoln Lab., MIT, Lexington, MA, USA

Volume

32

Issue

1

fYear

1996

Firstpage

145

Lastpage

155

Abstract

Phase and amplitude fluctuations induced by wave propagation through foliage limit the ability of a synthetic aperture radar (SAR) system to image a target under foliage. One-way measurements of these fluctuations were done at C-, L-, UHF band during the July 1990 Foliage Penetration Experiment using single frequency CW signal sources and the NASA/JPL SAR receiver. The phase and amplitude data are coherently integrated to create the synthetic azimuthal patterns that would result when attempting to image a point target obscured by foliage. The effect of synthetic aperture length frequency, and polarization on the attenuation and azimuthal response of foliage obscured targets is investigated.

Keywords

microwave imaging; radar clutter; radar imaging; radar tracking; synthetic aperture radar; target tracking; C-band; L-band; NASA/JPL SAR receiver; SAR imaging; UHF band; amplitude fluctuations; azimuthal response; foliage-induced synthetic pattern distortions; phase fluctuations; point target; polarization; single frequency CW signal sources; synthetic aperture length frequency; synthetic aperture radar; synthetic azimuthal patterns; target imaging; wave propagation; Backscatter; Fluctuations; Frequency; Image resolution; L-band; Laboratories; Object detection; Pattern analysis; Performance evaluation; Phase measurement; Polarization;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/7.481257

Filename

481257