Paper Info
Title
Statistical Stability of Ultrawideband Time-Reversal Imaging in Random Media
Abstract
We carry out a study on the statistical stability of ultrawideband (UWB) time-reversal (TR) imaging in random media under different combinations of random medium parameters and interrogating signal properties. We examine conditions under which frequency decorrelation in random media provides a more effective “self-averaging” and, therefore, better statistical stability. We also present a new frequency-synthesized technique for UWB TR-based imaging. This technique is employed to construct TR-operator-decomposition and multiple-signal-classification images using either linear or full-aspect transceiver array configurations. The proposed technique automatically provides the best images of desired target(s) in terms of focusing resolution without the need for (synthetic) propagation of TR signals and ad hoc determination of the optimal focusing time instant. In addition, information about the imaging domain (background) can be stored and reused to reconstruct different targets.
Year
DOI
Venue
2014
10.1109/TGRS.2013.2245137
Geoscience and Remote Sensing, IEEE Transactions  
Keywords
Field
DocType
acoustic imaging,array signal processing,decorrelation,image classification,image reconstruction,image resolution,statistical analysis,transceivers,ultra wideband technology,MUSIC image,TR operator decomposition,TR signal,UWB TR-based imaging,ad hoc determination,focusing resolution,frequency decorrelation,frequency synthesized technique,image reconstruction,multiple signal classification,random medium parameter,statistical stability,transceiver array configuration,ultrawideband time reversal imaging,Frequency decorrelation,multiple signals classification,statistical stability,time-reversal (TR),volumetric beamforming
Stability (probability),Computer vision,Multiple signal classification,Decorrelation,Transceiver,Computer science,Bandwidth (signal processing),Artificial intelligence,Random media
Journal
Volume
Issue
ISSN
52
2
0196-2892
Citations 
PageRank 
References 
5
0.50
9
Authors
2
Name
Order
Citations
PageRank
Ahmed E. Fouda150.84
Fernando L. Teixeira29716.97