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A unified framework for multiple-input multiple-output and bistatic synthetic aperture sonar processing

Citation

Xu, W and Sun, F and Fan, S and Pan, X, A unified framework for multiple-input multiple-output and bistatic synthetic aperture sonar processing, Proceedings of OCEANS '15 MTS/IEEE - Genova, 18-21 May 2015, Genoa, Italy, pp. 2709-2712. ISBN 978-1-4799-8736-8 (2015) [Non Refereed Conference Paper]


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Official URL: https://ieeexplore.ieee.org/document/7271749/

DOI: doi:10.1109/OCEANS-Genova.2015.7271749

Abstract

Conventional monostatic synthetic aperture sonar (SAS) imaging is based on the point target assumption, and may suffer from the target scattering fluctuation within the scope of the synthesized aperture. Bistatic sonar can sample target scattering pattern (TSP) at any angle rather than from only the back scattering direction. It offers potential advantages when faced with an anisotropic target, but is still subject to limited mainlobe width of the TSP. In this paper we construct a unified framework of coherent and non-coherent processing, where the concept of multiple-input multiple-output (MIMO) and SAS are closely integrated to overcome the above-mentioned problem. Both bistatic sonar and MIMO sonar embody the concept of "Multi-", admitting the existence of spatial fading of acoustic targets and trying to make use of it. It is straightforward to migrate a conventional SAS to MIMO-SAS by putting multiple transmitters to insonify the target from different angles. An example realization of the framework using two transmitters is demonstrated.

Item Details

Item Type:Non Refereed Conference Paper
Keywords:synthetic aperture processing, bistatic, target scattering pattern, multiple-input, waveform diversity
Research Division:Engineering
Research Group:Electrical and Electronic Engineering
Research Field:Signal Processing
Objective Division:Defence
Objective Group:Defence
Objective Field:National Security
UTAS Author:Fan, S (Dr Shuangshuang Fan)
ID Code:125993
Year Published:2015
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2018-05-17
Last Modified:2018-10-12
Downloads:0

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