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Optics and AcousticsAcoustic Detection and Detectors

Multi-Static Detection and Localization of Buried Targets using Synthetic Aperture Iterative Time-Reversal Processing

Authors: H C Song; Karim Sabra; W A Kuperman; W S Hodgkiss; SCRIPPS INSTITUTION OF OCEANOGRAPHY LA JOLLA CA MARINE PHYSICAL LAB
 
Abstract: The objective of this project is to develop bi-static applications of the iterative time reversal techniques to focus along the ocean bottom. Iterative time-reversal provides a simple solution for self-adaptive focusing on strong reflectors (i.e. scattering targets) located on the ocean bottom without relying on predictive or modeling capabilities of the environment and of the target of interest. These robust focusing properties are crucial for mapping large and uncharted areas with little signal processing effort involved. With the experiments planned by Schmidt et al, there will be enough data to understand the ultimate limitations of the proposed self adaptive methods.

Limitations: APPROVED FOR PUBLIC RELEASE
Description: Final rept. 1 Jan 2006-31 Mar 2008
Pages: 26
Report Date: 18-Mar-2009
Contract Number: N00014-06-1-0351 N000140610351
Report Number: A099494
Keywords relating to this report:
*BURIED OBJECTS
*SYNTHETIC APERTURE SONAR
BISTATIC DETECTION
FOCUSING
ITERATIONS
MAPPING
OCEAN BOTTOM
REVERSIBLE
SCATTERING
SIGNAL PROCESSING
TARGETS
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