Acoustic classification of marine sediments by specular reflection of ultrasound

A. J. Maconochie, J. G. Bryden, M. A. Paul

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    This paper describes research at Heriot-Watt University into methods of discriminating and classifying seabed sediments by means of their specular response to acoustic illumination in the frequency range 25-100 KHz. Simulated sediment beds representing sand, soft layered clay and hard fissured clay have been tested in the laboratory and their acoustic signatures analysed using several numerical and statistical methods. The results suggest that it is possible in the first instance to discriminate between those types of sediment on the basis of the frequency content of their acoustic signatures. It is believed that the results also suggest a basis for a priori classification of sediments based on genetic features recognisable in the statistics of the ultrasound signatures, and a tentative scheme is proposed in this paper.

    Original languageEnglish
    Title of host publicationProceedings of the First International Offshore and Polar Engineering Conference
    Pages229-238
    Number of pages10
    Publication statusPublished - 1991
    Event1st International Offshore and Polar Engineering Conference 1991 - Edinburgh, Scotl
    Duration: 11 Aug 199116 Aug 1991

    Conference

    Conference1st International Offshore and Polar Engineering Conference 1991
    CityEdinburgh, Scotl
    Period11/08/9116/08/91

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  • Cite this

    Maconochie, A. J., Bryden, J. G., & Paul, M. A. (1991). Acoustic classification of marine sediments by specular reflection of ultrasound. In Proceedings of the First International Offshore and Polar Engineering Conference (pp. 229-238)