Sea floor classification using multibeam sonar

• Autorzy: Łubniewski Z. , Chybicki A.
• Języki publikacji: EN

Abstrakty

EN

The paper presents the method of seabed identification and classification using multibeam sonar echoes. The proposed approach is based on calculation of a set of parameters of an echo envelope. The parameters are extracted for each consecutive beam allowing the estimation of their dependence on the seafloor incident angle, and then the relation between seabed type and calculated echo parameters and its angular dependence is investigated. The paper concerns the experiment which has been carried out in Gdansk Bay in November 2008, and some comparisons of the results with those obtained during previous experiment in September 2007. The results for several bottom types are presented and discussed. It was confirmed that the information extracted from multibeam seafloor sensing data, e.g. "water column" recordings, may be useful in seafloor characterisation.

Słowa kluczowe

EN

sea floor classification; multibeam sonar; hydroacoustics

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 2009
• Tom: Vol. 12
• Strony: 127--132
• Opis fizyczny: Bibliogr. 5 poz., rys., wykr.

Twórcy

autor

Łubniewski Z.

autor

Chybicki A.

• Department of Geoinformatics, Gdańsk University of Technology ul. Narutowicza 11/12, 80-233 Gdańsk, Poland,

Bibliografia

• [1] Z. Łubniewski, A. Stepnowski, Sea bottom recognition using fractal analysis and scattering impulse response, Proceedings of the 4th European Conference on Underwater Acoustics, 179-184, Rome 1998.
• [2] J. Tęgowski, Z. Łubniewski, Application of some echo parameters to the seabed classification - methodological analysis, Hydroacoustics, Vol. 4, 237-240, 2001.
• [3] Z. Łubniewski, A. Chybicki, Seabed classification using multibeam echosounder, Proceedings of the 1st International Conference on Information Technology, Gdańsk 2008.
• [4] Z. Łubniewski, A. Chybicki, Using multibeam echoes in seafloor characterisation and classification, Hydroacoustics, Vol. 11, 265-270, 2008.
• [5] J. E. Hughes Clarke, B. W, Danforth, P. Valentine, Aereal seabed classification using backscatter angular response at 95 kHz, Saclantcen Conference Proceedings Series CP-45, High Frequency Acoustics in Shallow Water, 243-250, La Spezia 1997.