Abstract
This paper considers the problem of imaging a complex object submerged in shallow waters using a sparse surface sensor array and a hybrid signal processing method. This method is constructed by refining the Kirchhoff migration technique to incorporate a zoning of the sensors and an analysis of multiple reflections, and combining it with the direction of arrival estimation method. Its performance is assessed and analyzed with the shape identification of a mockup submarine by numerical simulation. The obtained numerical results highlight the potential of this approach for detecting underwater intruders.
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Acknowledgments
The authors acknowledge partial support by the Office of Naval Research under Grant N00014-05-1-0204-1, and partial support by the National Science Foundation under Grant CNS-0540419.
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Dord, J.F., Farhat, C. (2011). A Hybrid Kirchhoff Migration Direction-of-Arrival Method for Underwater Imaging of Complex Objects Using Sparse Sensor Arrays. In: André, M., Jones, J., Lee, H. (eds) Acoustical Imaging. Acoustical Imaging, vol 30. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-3255-3_27
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DOI: https://doi.org/10.1007/978-90-481-3255-3_27
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