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Application of the fractal analysis in the sea bottom recognition

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The paper proposes a newly developed simple method of the sea bottom typing using elements of fractal analysis. The fractal dimension was calculated as a box dimension for sampled envelopes of echo signals from four types of sea bottom recorded during mobile acoustic surveys carried out in Lake Washington. The histograms of obtained box dimension values for particular bottom types as well as scatter diagrams in box dimension-echo energy parameter space were constructed and analysed. The obtained results show that this simple method can be used both alone and combined with other methods for on board sea bed recognition in real time with accuracy similar to that of other methods.
Słowa kluczowe
Rocznik
Strony
499--512
Opis fizyczny
Bibliogr. 13 poz., rys., tab., wykr.
Twórcy
  • Technical University of Gdańsk, Acoustics Department, Gdańsk
  • Technical University of Gdańsk, Acoustics Department, Gdańsk
Bibliografia
  • [1] D. Bakiera, A. Stepnowski, Method of the sea bottom classification with a division of the first echo signal, Proceedings of the XHIth Symposium on Hydroacoustics, Gdynia-Jurata, 55-60 (1996).
  • [2] L.R. leBlanc, L. Mayer, M. Rufino, S.G. Schock, J. King, Marine sediment classification using the chirp sonar, J. Acoust. Soc. Am., 91, 1, 107-115 (1992).
  • [3] R.C. Chivers, Acoustical sea-bed characterisation, Xlth Symposium on Hydroacoustics, Ju rata (1994) [invited paper].
  • [4] M. Gensane, H. Tarayre, Tests of sea-bottom discrimination with a parametric array, Acoustic Letters, 16, 5, 110-115 (1992).
  • [5] W.C. Knight, R.G. Pridham, S.M. Kay, Digital signal processing for sonar, Pro c. IEEE, 69, 11, 1451-1506 (1981).
  • [6] Z. Lubniewski, A. Stepnowski, Sea bottom typing using fractal dimension. Proceedings of the International EAA/FASE Symposium on Hydroacoustics and Ultrasonics, Gdańsk-Jurata, 131-134 (1997).
  • [7] E. Pouliquen, X. Lurton, Sea-bed identification using echosounder signal, European Conference on Underwater Acoustics, Elsevier Applied Science, London and New York, 535 (1992).
  • [8] A. Stepnowski, M. Moszyński, R. Komendarczyk, J. Burczyński, Visual real-time Bottom Typing System (VBT S) and neural networks experiment for sea bed classification, Proceedings of the 3rd European Conference on Underwater Acoustics, Heraklion, Crete, 685-690 (1996).
  • [9] H. M. Hastings, G. Sugihara, Fractals. A user’s guide for the natural sciences, Oxford University Press, Oxford, New York, Tokyo (1994), pp. 7-77.
  • [10] K. Jajuga, Statistical theory of pattern recognition [in Polish], PWN, Warszawa 1977, pp. 119-124.
  • [11] B.B. Mandelbrot, The fractal geometry of nature, Freeman, San Francisco 1982.
  • [12] anon., Quester Tangent (1997), Quester Tangent Marine Instrumentation, 13 February 1997, http ://w ww.questercorp.com/
  • [13] J. Tęgowski, Characteristic features of backscattering of the ultrasonic signals from the sea bottom at the Southern Baltic [in Polish], Ph.D . Thesis, Institute of Oceanology of Polish Academy of Sciences, Sopot 1994.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BAT3-0007-0131
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