Time Reversal Imaging by Adaptive Interference Canceling

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 beamform imaging.

• Type: Journal
• Year: 2008
• Where: TSP
• Authors: José M. F. Moura, Yuanwei Jin
• Keywords: Reversal Adaptive Interference, Rich Scattering Environments, Time Reversal, TSP 2008