Conditions for propagation wave of finite amplitude in the Southern Baltic

• Autorzy: Grelowska G.
• Języki publikacji: EN

Abstrakty

EN

In order to improve the buried objects search capability, there is a need to investigate new techniques that will enable the detection, localization and classification of buried mines. Indeed, mines buried in marine sediments represent a severe threat, especially in coastal waters. More-over, an inventory of objects buried in harbor areas is necessary to assure the security of ships. Parametric sonars are the new class of devices that allow to penetrate the sea floor. However their efficiency depends strongly on natural conditions in the sea. The dependence is of great importance in the shallow sea with considerable changes of acoustical conditions during the year. The paper contains the results of research of effectiveness of nonlinear wave generation in the Southern Baltic conditions basing on in situ measurements of the hydrological parameters.

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 2007
• Tom: Vol. 10
• Strony: 69--74
• Opis fizyczny: Bibliogr. 4 poz., rys.

Twórcy

autor

Grelowska G.

• Polish Naval Academy Smidowicza 69, 81-103 Gdynia, Poland,

Bibliografia

• [1] E. Kozaczka, G. Grelowska, I. Gloza: Influence of underwater climate on acoustic wave propagation in the Southern Baltic, Proceedings of the 17th International Congress on Acoustics, Rome 2001
• [2] K. D. LePage, Modeling propagation and reverberation sensitivity to oceanic and seabed variability, SACLANT Undersa Research Centre SM-398, La Spezia Italy, 2003
• [3] X. Lurton, J. Marchal, Long range propagation losses and reverberation levels in shallow water using an averaged intensity model, Proc. 3rd ECUA, FORTH-IACM, Create 1996, pp. 569-574
• [4] M. A. Pinto, A. Bellettini, R. Hollett, A. Tesei, High Resolution imaging of buried targets, Special issue of IEEE J. of Ocean Eng on High Frequency Acoustica II (2001).