Abstract
At very low frequencies the signals observed from an impulsive source are dominated by scattering from the seafloor. Experiments demonstrating this have ranged from echoes locally reflected by seamounts to transoceanic reverberation from continental margins. Receivers have included omnidirectional sensors, towed line arrays, two dimensional horizontal arrays and vertical arrays.
Backscattering highlights have been observed from known topographic features as well as from tantalizing unknown ones. This suggests the use of backscattering signals for reconnaissance in poorly charted areas. One of the major uncertainties lies in the relation of the backscattering structure as a function of frequency to the topography (rms roughness and bathymetry). The experiments on acoustic backscattering and their data analyses are surveyed in this context.
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© 1986 Plenum Press, New York
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Baggeroer, A.B., Dyer, I. (1986). Long Range, Low Frequency Acoustic Backscattering: A Survey. In: Akal, T., Berkson, J.M. (eds) Ocean Seismo-Acoustics. NATO Conference Series, vol 16. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-2201-6_31
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DOI: https://doi.org/10.1007/978-1-4613-2201-6_31
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