Detection of moving targets in wideband SAR

Author

Pettersson, Mats I.

Author_Institution

Swedish Defense Res. Agency, Linkoping, Sweden

Volume

40

Issue

3

fYear

2004

fDate

7/1/2004 12:00:00 AM

Firstpage

780

Lastpage

796

Abstract

A likelihood ratio is proposed for moving target detection in a wideband (WB) synthetic aperture radar (SAR) system. WB is defined here as any systems having a large fractional bandwidth, i.e., an ultra wide frequency band combined with a wide antenna beam. The developed method combines time-domain fast backprojection SAR processing methods with moving target detection using space-time processing. The proposed method reduces computational load when sets of relative speeds can be tested using the same clutter-suppressed subaperture beams. The proposed method is tested on narrowband radar data.

Keywords

radar clutter; radar detection; space-time adaptive processing; synthetic aperture radar; SAR processing methods; clutter-suppressed subaperture beams; computational load reduction; large fractional bandwidth; likelihood ratio; moving targets detection; narrowband radar data; space-time processing; synthetic aperture radar; time-domain fast backprojection; ultrawide frequency band; wide antenna beam; wideband SAR; Bandwidth; Frequency; Narrowband; Object detection; Radar antennas; Radar detection; Synthetic aperture radar; Testing; Time domain analysis; Ultra wideband antennas;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/TAES.2004.1337454

Filename

1337454