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Electrical Engineering Faculty Publications
Fractional Fourier transform, impulse response, sonar signal processing, Wigner distribution, volume search sonar
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Sonar Signal Enhancement Using Fractional Fourier Transform, Madalina Barbu, Edit J. Kaminsky, Russell E. Trahan
Sonar Signal Enhancement Using Fractional Fourier Transform, Madalina Barbu, Edit J. Kaminsky, Russell E. Trahan
Electrical Engineering Faculty Publications
In this paper we present an approach for signal enhancement of sonar signals. Work reported is based on sonar data collected by the Volume Search Sonar (VSS), as well as VSS synthetic data. The Volume Search Sonar is a beamformed multibeam sonar system with 27 fore and 27 aft beams, covering almost the entire water volume (from above horizontal, through vertical, back to above horizontal). The processing of a data set of measurement in shallow water is performed using the Fractional Fourier Transform algorithm. The proposed technique will allow efficient determination of seafloor bottom characteristics and bottom type using the …