Fractal characterisation of 30 kHz echoes from southern Baltic bottom

• Autorzy: Tęgowski J. , Łubniewski Z.
• Konferencja: 17 th Symposium on Hydroacoustics (23-26.05.2000; Jurata; Polska)
• Języki publikacji: EN

Abstrakty

EN

The fractal dimension of 30 kHz echo envelope is used for characterise the bottom sediment type in Southern Baltic Sea. Two methods of the echo waveform fractal dimension calculation were applied: the autocorrelation function log-log slope method and the power spectrum log-log slope method. The results are presented and compared. They show that fractal dimension of echo envelope describes well the bottom sediments morphology and may be used as a significant descriptor in the remote sea bed classification procedures.

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 2000
• Tom: Vol. 3
• Strony: 15--18
• Opis fizyczny: Bibliogr. 3 poz., rys.

Twórcy

autor

Tęgowski J.

• Institute of Oceanology, Polish Academy of Sciences, Powstańców Warszawy 55,81-712 Sopot, Poland

autor

Łubniewski Z.

• Department of Remote Sensing and Monitoring Systems, Technical University of Gdańsk, Narutowicza 11/12, 80-952 Gdańsk, Poland

Bibliografia

• [1] 1. Tęgowski, Z. Łubniewski, The use of fractal properties of echo signals for acoustical classification of bottom sediments, Acustica United with Acta Acustica (2000) [in printing].
• [2] H. M. Hastings, G. Sugihara, Fractals. A user's guide for the naturaI sciences, Oxford University Press, Oxford, New York, Tokyo 1994,7-77.
• [3] Geological chart of the Baltic Sea bottom, PIG, Warszawa 1992.