Time Reversal Imaging by Adaptive Interference Canceling

Author

Moura, José M F ; Jin, Yuanwei

Author_Institution

Dept. of Electr. &Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA

Volume

56

Issue

1

fYear

2008

Firstpage

233

Lastpage

247

Abstract

We develop the time reversal adaptive interference canceler (TRAIC) time reversal beamformer (TRBF), a new algorithm to detect and locate targets in rich scattering environments. It utilizes time reversal in two stages: (1) Anti-focusing: TRAIC time reverses and then reshapes the clutter backscatter to mitigate the clutter response; (2) Focusing: TRBF time reverses the residual backscatter to focus the radar image on the target. Laboratory experiments with electromagnetic radar data in a highly cluttered environment confirm the superiority of TRAIC-TRBF over conventional direct subtraction (DS) beamform imaging.

Keywords

backscatter; interference suppression; radar detection; radar imaging; target tracking; adaptive interference canceling; electromagnetic radar data; radar image; rich scattering environments; target detection; target location; time reversal adaptive interference canceler; time reversal beamformer; time reversal imaging; Backscatter; Electromagnetic scattering; Focusing; Interference cancellation; Multiple signal classification; Radar clutter; Radar detection; Radar imaging; Radar scattering; Signal resolution; Adaptive interference cancelation; super-resolution; time reversal; waveform shaping; wideband radar imaging;

fLanguage

English

Journal_Title

Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1053-587X

Type

jour

DOI

10.1109/TSP.2007.906745

Filename

4407648