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Acoustic inversion at low kHz frequencies using an active, vertical line array

  • Paul C. Hines
  • Matt Coffin

Keywords

Volume Scatter Backscatter Data Bistatic Angle Match Field Processing Dominant Scatter 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Heald G. J., High frequency seabed scattering and sediment discrimination. Proc. Inst. of  Acoustics 23, 258-267 (2001).Google Scholar
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    Pace N. G., Al-Hamdani Z. and Thorne P. D., The range dependence of normal incidence acoustic backscatter from a rough surface. J. Acoust. Soc. Am. 77, 101-112 (1985).CrossRefGoogle Scholar
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    Briggs K. B., Tang D. and Williams K. L., Characterization of Interface Roughness of Rippled Sand Off Fort Walton Beach, Florida. IEEE J. of Ocean. Eng. 27, 505-514 (2002).CrossRefGoogle Scholar
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    Hines P. C. and Heald G. J., Seabed classification using normal incidence backscatter measurements in the 1-10 kHz frequency band. Proc. Inst. of Acoustics 23, 42-50 (2001).Google Scholar
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    Carey W. M., Doutt J., Evans R. B. and Dillman L. M., Shallow-water sound transmission measurements on the New Jersey Continental Shelf. IEEE J. of Ocean. Eng. 20, 321-336 (1995).CrossRefGoogle Scholar
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    Osler J. C., Hines P. C. and Trevorrow M. V., Acoustic and In-Situ Techniques for Measuring the Spatial Variability of Seabed Geoacoustic Parameters in Littoral Environments. In Proc. Impact of Littoral Environmental Variability on Acoustic Predictions and Sonar Performance, Ed. N.G. Pace and F.B. Jensen (Kluwer Academic Publishers, 2002) pp. 83-90,Google Scholar
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    In the previous seabed classification experiments using the UAT (See [6]) a pair of vertically separated spherical projectors were used so that cardioid pulses could be formed to direct a null at the sea surface. However, this limited the lowest frequency to 3 kHz so the decision was made to use FFR's to extend the frequency band down to 1 kHz.Google Scholar

Copyright information

© Springer 2006

Authors and Affiliations

  • Paul C. Hines
    • 1
  • Matt Coffin
    • 2
  1. 1.Defence R&D Canada AtlanticDartmouthCanada
  2. 2.Defence R&D Canada AtlanticDartmouthCanada

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