Abstract
Local hydrodynamic or biological influences often produce seafloors in shallow water that consist of differing types of material. The scattering properties from the components of these kinds of seafloors may have a complicated relationship in terms of their frequency dependence and/or angular response. Consequently, this relationship directly influences the angular and frequency response of the scattered envelope distributions. The probability distribution function (PDF) for a scattering scenario such as this is not easy to obtain analytically. However, a recently developed model for a patchy seafloor with a single dominating component [1] allows for numerical analysis of the envelope PDF for more complicated seafloors through the use of Hankel transforms of the joint characteristic function (JCF) of the complex envelope. The JCF is straightforward to construct for complicated patchy seafloors. In this study, a direct link between environmental parameters and the envelope distributions of backscatter is developed. The influence of the relative scattering properties of the seafloor patches on the scattered envelope statistics will be examined in detail.
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References
Abraham, D.A. and Lyons, A.P., Novel physical interpretations of K-distributed reverberation, IEEE J. Oceanic Eng. (submitted 2001).
Jakeman, E. and Pusey, P.N., A model for non-Rayleigh sea echo, IEEE Trans. Ant. and Prop. 24, 806–814 (1976).
Abraham, D.A., Signal Excess in K-distributed reverberation, IEEE J. Oceanic Eng. (submitted 2001).
Lyons, A.P. and Abraham, D.A., Statistical characterization of high-frequency shallow-water seafloor backscatter, J. Acoust. Soc. Am. 106, 1307–1315 (1999).
Lyons, A.P., Anderson, A.L. and Dwan, F.S., Acoustic scattering from the seafloor: Modeling and data comparison, J. Acoust. Soc. Am. 95, 2441–2451 (1994).
Stanton, T.K., On acoustic scattering by a shell-covered seafloor, J. Acoust. Soc. Am. 108, 551–555 (2000).
Lyons, A.P. and Pouliquen E., Measurements of high-frequency acoustic scattering from seabed vegetation. In Proc. 16th Int. Congress of Acoustics and the 135th Meeting of the Acoustical Society of America (AIP, Woodbury, NY, 1998) pp. 1627–1628.
Stanic, S., Briggs, K.B., Fleischer, P., Ray, R.I. and Sawyer, W.B., Shallow-water high-frequency bottom scattering off Panama City, Florida, J. Acoust. Soc. Am. 83, 2134–2144 (1988).
Stanic, S., Briggs, K.B., Fleischer, P., Sawyer, W.B. and Ray, R.I., High-frequency acoustic backscattering from a coarse shell ocean bottom, J. Acoust. Soc. Am. 85, 125–136 (1988).
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© 2002 Springer Science+Business Media Dordrecht
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Lyons, A.P., Abraham, D.A., Pouliquen, E. (2002). Predicting Scattered Envelope Statistics of Patchy Seafloors. In: Pace, N.G., Jensen, F.B. (eds) Impact of Littoral Environmental Variability of Acoustic Predictions and Sonar Performance. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0626-2_27
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DOI: https://doi.org/10.1007/978-94-010-0626-2_27
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