Progress in Underwater Acoustics
Kluwer Academic / Plenum Publishers (Verlag)
978-0-306-42552-3 (ISBN)
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Opening.- Opening Address.- Sound Scattering from Ocean Boundaries.- Acoustical Visualisation of the Ocean Bottom.- The Sea Bottom Backscattering of Sound (The History and Modern State).- A Unified Description of Wave Scattering at Boundaries with Large and Small Scale Roughness.- Validity of the Born and Rytov Approximations.- Multiple Scattering at Rough Ocean Boundaries.- Rough Surface Scattering and the Kirchhoff Approximation.- High Frequency Scattering from Rough Bottoms and the Second Born Approximation.- Statistical Characteristics of Acoustic Fields Scattered at the Sea Surface: A Helmholtz-Gulin Model.- The Importance of Hybrid Ray Paths, Bottom Loss, and Facet Reflection on Ocean Bottom Reverberation.- Scattering by Biological and Other Bodies.- The Study of Sound Backscattering from Microinhomogeneities in Sea Water.- Scaring Effects on Fish and Harmful Effects on Eggs, Larvae and Fry by Offshore Seismic Explorations.- Fish Stock Assessment by a Statistical Analysis of Echo Sounder Signals.- Processing of Fish Echo-Signals for Classification Purpose.- Broadband Acoustical Scattering by Individual Fish.- Multichannel False Color Echograms as a Biological Interpretative Tool.- Study of the Pseudo-Lamb Wave So Generated in Thin Cylindrical Shells Insonified by Short Ultrasonic Pulses in Water.- Scattering of an Acoustic Wave by a Transmission-Loss Tile.- Frequency Dependence of the Interaction of Ultrasound with Suspended Sediment Particles.- Sound Scattering in Aqueous Suspensions of Sand: Comparison of Theory and Experiment.- Acoustic Characterization of the Ocean and the Ocean Floor.- A Combined Seismic Reflection Profiler and Sidescan Sonar System for Deep Ocean Geological Surveys.- Signal Processing of Ocean Acoustic Tomography Data.- Seismic Profiling with a Parametric, Self-Demodulated Ricker Wavelet.- Remote Acoustic Mapping of a Submarine Spring Plume.- Acoustic Remote Sensing of the Waveheight Directional Spectrum of Surface Gravity Waves.- A Pattern Recognition Approach to Remote Acoustic Bottom Characterization.- Comparative Numerical Study of VLF Signal Propagation Characteristics for Ocean Bottom and Marine Borehole Arrays.- Application of Acoustic Waves and Electrical Conductivity for the Determination of Mechanical Characteristics of Marine Sediments.- The Estimation of Density, P-Wave, and S-Wave Speeds of the Top-Most Layers of Sediments.- ETL Reflectivity as a Feature for Recognition of Top-Layer Marine Sediments.- Inversion of Ocean Subbottom Reflection Data.- An Inverse Method for Obtaining the Attenuation Profile and Small Variations in the Sound Speed and Density Profiles of the Ocean Bottom.- A Perturbative Inverse Method for the Determination of Geoacoustic Parameters in Shallow Water.- A Synthetic Aperture-Array Technique for Fast Approximate Geobottom Reconnaissance.- Buried Target Reflectivity Evaluation Through an Array of Sensors.- Reflectivity of a Layer With Arbitrary Profiles of Density and Sound Velocity.- Sound Speed Profile Inversion in the Ocean.- A Technique for Modeling the 3-D Sound Speed Distribution and Steady State Water Velocity Field from Hydrophone Data.- Sound Propagation in the Ocean.- a) General.- A New Form of the Wave Equation for Sound in a General Layered Fluid.- Phase Space Methods and Path Integration: The Construction of Numerical Algorithms for Computational Acoustics.- Predicting Convergence Zone Formation in the Deep Ocean.- A New Approximate Solution Valid at Turning Points.- The Sound Intensities Near the Conjugate Turning Points in an Underwater Sound Channel.- Modeling Acoustic Waves by Transmutation Methods.- Beyond What Distance are Finite-Amplitude Effects Unimportant?.- Attenuation of Low-Frequency Sound in the Sea: Recent Results.- On the Calculation of Acoustic Intensity Fluctuations Caused by Ocean Currents.- Quick Normal Mode Type Starting Fields for Parabolic Equation Models.- A Posteriori Phase Corrections to the Parabolic Equation.- Perturbation Modeling for Ocean Sound Propagation.- Fast Computation of Perturbed Normal Modes.- Omnidirectional Ambient Noise Measurements in the Southern Baltic Sea During Summer and Winter.- Ambient Noise over Thickly Sedimented Continental Slopes.- b) Shallow Water.- Some New Challenges in Shallow Water Acoustics.- Propagation of Seismic and Acoustic Waves in Horizontally Stratified Media with Stochastically Rough Interfaces.- The Effect of Variable Roughness of a Granite Seabed on Low-Frequency Shallow-Water Acoustic Propagation.- Ocean Seismo-Acoustic Propagation.- Measurements of Wind Dependent Acoustic Transmission Loss in Shallow Water Under Breaking Wave Conditions.- Modelling Wind Dependent Acoustic Transmission Loss due to Bubbles in Shallow Water.- Fourier and Fresnel Foci and Level Distributions in Interference Fields.- A Model of Sound Propagation in an Open Dock.- c) Slope Water.- Sound Propagation in a Range-Dependent Shallow Ocean with a Bottom Containing Vertical Sound Speed Gradients.- Canonical Propagation Problems for a Wedge Shaped Ocean: I. Layered Fluid-Solid Bottom; II. Bottom with Linear Surface Impedance Variation.- Rigorous Theory of Horizontal Refraction in a Wedge Shaped Ocean.- Spectral Decomposition of PE Fields in a Wedge-Shaped Ocean.- Analytical Solution of the Parabolic Equation for Guided Mode Disappearance at a Critical Depth.- Vertical Directionality of Acoustic Signals Propagating Downslope to a Deep Ocean Receiver.- A Theoretical Model of Acoustic Propagation Around a Conical Seamount.- Experimental Bearing Shifts as Evidence of Horizontal Refraction in a Wedge-Like Ocean.- Transducers, Radiation and Instrumentation.- Underwater Soundbeams Created by Airborne Laser Systems.- Optical Generation of Sound: Experiments with a Moving Thermoacoustic Source. The Problem of Oblique Incidence of the Laser Beam.- Acoustic Measurements and Applications of Kinetic Impacts on Ice.- Axial Focusing by Phased Concentric Annuli.- Computer Simulation of Beam Patterns for a Sonar Phased Cylindrical Array.- Some Aspects of Transducer Design by Finite Element Techniques.- A 10-kW Ring-Shell Projector.- Beamforming with Acoustic Lenses and Filter Plates.- Hydrophone Using a Fiber Fabry-Perot Interferometer.- An Improved Method for Fluid Structure Interactions.- Acoustic Pressure Radiated from Heavy-Fluid Loaded Infinite Plate Driven by Several Point Forces.- Transfer Properties of a Fluid Loaded Elastomer Layer.- Parametric Acoustic Array Application Using Liquids with Low Sound Speed.- Signal Processing and Beamforming.- Signal Processing for Precise Ocean Mapping.- An Underwater Acoustic Position Fixing System for Precise Low Range Use.- Improvement of Underwater Acoustic Localization by Coherent Processing.- A Beam Steering Process for Seismic Data.- Frequency Frequency-Rate Spectral Analysis.- Space-Time Processing, Environmental-Acoustic Effects.- An Efficient Method of Dolph-Chebyshev Beamforming.- Multipath Processing for Improved Detection on a Long Vertical Array.- Bearing Estimation of a Single Monochromatic Plane Wave with a Linear Receiving Array.- Iterative Methods for Enhancement of Multichannel Data.- Linear Prediction for Sensor Recovery in Line Array Beamforming.- An Algorithm for High-Resolution Broadband Spatial Processing.- Missing Abstracts.- Program.- Author Index.
| Zusatzinfo | biography |
|---|---|
| Verlagsort | Dordrecht |
| Sprache | englisch |
| Gewicht | 1630 g |
| Themenwelt | Technik |
| ISBN-10 | 0-306-42552-1 / 0306425521 |
| ISBN-13 | 978-0-306-42552-3 / 9780306425523 |
| Zustand | Neuware |
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