Hydroacoustics, tom 9

1. Numerical analysis of the finite amplitude plane wave propagation problem.
2. The analisys of the system towing rope with long underwater object.
3. 3D imaging software tools for multibeam sonar data.
4. The mathieu functions applied to some problems in underwater acoustics.
5. The difference-frequency acoustic scattering from nonlinear objects.
6. Setting time periods of the concentration of the acoustic energy generated to water by ships.
7. 2-D FFT algorithm for frank sequence processing.
8. Multistatic systems.
9. Research and development on underwater acoustic systems at Polish Naval Academy and Gdansk University of Technology for the Polish Navy.
10. Phase conjugation for underwater acoustic communications.
11. Are the knudsen curves acceptable in the Baltic Sea?
12. New methods of underwater ship noise classification.
13. Acoustic estimation of macrophytes in the Hornsund Fjord (The Svalbard Archipelago).
14. Influence of vibration of ship's generating set on emitted acoustic energy.
15. 3D visualisation and monitoring of marine pollutant aggregations in web-based GIS.
16. Experimental evaluation of high frequency side scan sonar as object search and identification tool.
17. Electronic stabilization of beams in sonar with cylindrical array.
18. A hybrid optimization method for designing polyphase sequences.
19. The estimation of norwegian cod size distribution from acoustic data.
20. Acoustic classification of southern Baltic benthic habitat.
21. Nonredundant 2-D and 3-D sonar systems based on gold ring bundles.
22. On cross-processing scalar and vector quantities in underwater acoustics.
23. Approximation of underwater channel impulse response by non-orthogonal functions.
24. The ichthyofauna of the degraded vendace lakes Mielno and Marz studied with hydroacoustic and monitoring catch methods.
25. Spatial SAS signal filtering by means of polar format processing.
26. Synthesis and wavelet analysis of side-scan sonar sea bottom imagery.
27. The new underwater acoustic communication algorithm based on an approximation method.
28. Diurnal and seasonal fish horizontal migrations in the Sulejw reservoir, Poland.
29. Quadrature phase detection in an acoustic positioning system.

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