Using multibeam echoes in seafloor characterisation and classification

• Autorzy: Łubniewski Z.
• Języki publikacji: EN

Abstrakty

EN

The method of seabed identification and classification from multibeam sonar echoes is presented. The proposed approach is based on calculation of a set of parameters of an echo envelope, similarly as in seafloor classification using single beam echosounder. These parameters are extracted for each consecutive beam allowing the estimation of their dependence on the seafloor incident angle. The relation between seabed type and calculated echo parameters and its angular dependence, is investigated. The results obtained using sonar data records from several bottom types in Gdańsk Bay water region are presented and discussed. It has been primarily justified that the proposed approach may be useful in seafloor characterisation.

Słowa kluczowe

EN

multibeam echoes; seafloor characterisation; sonars

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 2008
• Tom: Vol. 11
• Strony: 265--270
• Opis fizyczny: Bibliogr. 5 poz., rys., wykr.

Twórcy

autor

Łubniewski Z.

• Gdansk University of Technology, Department of Geoinformatics Narutowicza 11/12, 80-952 Gdansk, Poland,

Bibliografia

• 1. Z. Łubniewski, Application of fractal analysis and inverse filtering in the remote seabed classification and monitoring, PhD thesis, Gdańsk University of Technology, 2001.
• 2. J. Tęgowski, Z. Łubniewski, Application of some echo parameters to the seabed classification - methodological analysis, Hydroacoustics, 4, 237-240, 2001.
• 3. Z. Łubniewski, K. Bikonis, A. Chybicki, A. Stepnowski, Application of angular dependence of sonar echo features in seafloor characterisation and imaging, Revista de Acustica, 38, 3-4, 2007, Special Issue: Official Publication of the 19th International Congress on Acoustics ICA 2007, Madrid.
• 4. Z. Łubniewski, A. Chybicki, Seabed classification using multibeam echosounder, Proceedings of the 1st International Conference on Information Technology, Gdańsk 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.