HYDROACOUSTICS Annual Journal Volume 8

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2 European Acoustics Association Committee on Acoustics of the Polish Academy of Sciences Section of Ultrasonics Polish Acoustical Society Gdansk Division ISSN HYDROACOUSTICS Annual Journal Volume 8 Gdynia 2005

3 Hydroacoustics is the annual journal in which original papers, both theoretical and experimental, concerning problems in hydroacoustics and its application are published. EDITORIAL BOARD Grażyna Grelowska Eugeniusz Kozaczka Roman Salamon Andrzej Stepnowski EDITORIAL STAFF Aleksandra Raganowicz Lech Kilian Alicja Wnuk SCIENTIFIC COMMITTEE Prof. Eugeniusz Kozaczka Prof. Dr. Tuncay Akal Prof. Lejf Bjorno Prof. David Bradley Prof. Igor B. Esipov Prof. Grażyna Grelowska Prof. Nick G. Pace Prof. Roman Salamon Prof. Jean-Pierre Sessarego Prof. Andrzej Stepnowski Prof. Michael Taurodakis Prof. Peter Wille Prof. Manell Zakharia Turkey Denmark USA Russia Italy France Greece Germany France PUBLISHER Polish Acoustical Society Gdansk Division Narutowicza 11/ Gdansk, Poland Phone: (+48 58) , Fax(+48 58)

4 Volume 8 HYDROACOUSTICS CONTENTS A. Baranowska Analysis of the KZK equation solution for fixed pressure distributions at the piston l K. Bikonis, M. Moszyński 3D reconstruction of seafloor from side-scan records 9 J. Demkowicz, Z. Lubniewski Application of CDMA modulated signals in seafloor remote sens ing 15 I. Didenkulov, S. Muyakshin,, D. Selivanovsky Rotation motion of small particles in sound field and possible mechanism of sound perception 23 I. Didenkulov, V. Kanakov, A. Sanin, D. Selivanovsky, V. Chernov Observation of sonoluminescence and subharmonics 31 A. Elminowicz, L. Zajączkowski High resolution multi-beam side looking sonar. 37 A. Ezersky, P. Gromov, P. Soustov, V. Chernov Acoustic sens ing ofhydrodynamic vortex flow.47 M. Godlewska, A. Świerzowski, V. Menshutkin, J. Wanzebiick Can we precisely estimate fish sizes using acoustics? 53 S. Jastrzębski Acoustic communications in shallow waters 61 A. Jedel, L. Kilian, J. Marszal, Z. Ostrowski, R. Salamon Dynamie control ofthe receiving beam horizontal cross-section in the side scan sonar.69 I. Kochańska, H. Lasota, R. Salarnon OFDM modulation and adaptive equalization for underwater communications 77 E. Kozaczka Modem applications ofmaritime technology 83 T. Kujawska, J. Wójcik, A. Nowicki Nonlinear ultrasound propagation in water from square focused transducer. 89 W. Lis, J. Schmidt, Z. Wojan Determining the impedance ofultrasonic transducers by the added elements method.. 99

5 HYDROACOUSTICS Volume 8 Z. Łubniewski, A. Partyka, A. Stepnowski Maritime awareness and emergency management real time system using remotely accessible GIS technology 105 D. Łukaszewicz, L. Rowiński Possibilities of detection and identification objects located on the sea bottom by means of a simple sidescan sonar 111 T. Marciniak Complex signals based on short chirp signals and phase coding, 117 E. MutIu Monochromatic acoustic recognition of scattering layers: case studies in the Turkish seas 125 A. Orłowski, A. Kujawa Acoustic Reconnaissance of fish and environmental background in demersal zone in southem Baltic 137 N. G. Pace Seabed volume seatter dependence on difficult-to-rneasure parameters 147 W. Pogribny, I. Rozhankivsky, T. Leszczyński, Z. Lutowski Analysis ofnoisy signais on base ofdifferential correlation algorithms 155 A. Raganowicz, M. Rudnicki, R. Sałamon Processing the complex signal in the acoustic processor ofa sonobuoy system 163 V. Riznyk Application of the perfect combinatorial configurations for configure of high performance sonar systems 171 J. Schmidt, K. Zachariasz, R. Sałamon Underwater communication system for shallow water using modified MFSK modulation 179 V. Shchurov, B. Dorozhko, M. Kuyanova The observation ofreverberation in the ocean by acoustic combined receiver. 185 P. Soszyński, I. Głoza Application ofpca as an acoustical signal processing tool for object classification purposes 193 A. Stateczny, M. Pałczyński Synthesis of sonar images in the process of comparative navigation, 199 A. Swierzowski, L. Doroszczyk Spatial variation in the occurence and densityofpelagic fish in lake lansk: monitoring with hydroacoustic and catch methods 209

6 Volume 8 HYDROACOUSTICS M. Szczegielniak The utility of synthetic aperture sonar in seafloor imaging 217 J. Szczucka, B. Schmidt Influence ofthe ADCP geometry on the results ofmeasurement. 227 M. Weryk Statistical energy analysis methods in marine applications 233 R. Zachariasz, M. Czerwiec, J. IIczuk Transparent PLZT ceramics and their practical use 247 A. Zielinski, L. Zhou Precision acoustic navigation for remotely operated vehicles (ROV) 255 A.Żak Creatin pattems for hydroacoustics signals 265 Index 271