Abstract
The feasibility of using a 3 kHz surface ship bow sonar as a synthetic aperture sonar (SAS) for imaging targets in shallow water is presented. The study consists of modelling the environment with a time-varying ocean surface; a downward refracting sound velocity profile; and bottom roughness, penetration and scattering. Targets placed in the model include both a point target to simulate a mine and confirm imaging resolution, and an array of point targets to simulate the length extent of a submarine. The multipath returns were then processed by standard side-scan sonar (SSS) methods and SAS methods. Replica processing (matched filtering) was employed to improve imaging. Useful SAS imaging is shown.
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References
K. Rolt and P. Abbot, Littoral coherence limitations of acoustic arrays, 23 rd International Symposium on Acoustical Imaging (1997).
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© 1997 Springer Science+Business Media New York
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Celuzza, S., Abbot, P., Gedney, C., Gillespie, B., Rolt, K. (1997). Feasibility of Littoral Imaging with a 3 Khz Synthetic Aperture Sonar. In: Lees, S., Ferrari, L.A. (eds) Acoustical Imaging. Acoustical Imaging, vol 23. Springer, Boston, MA. https://doi.org/10.1007/978-1-4419-8588-0_35
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DOI: https://doi.org/10.1007/978-1-4419-8588-0_35
Publisher Name: Springer, Boston, MA
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