Acoustic Signal Processing for Ocean Exploration

The book discusses related issues and problems focused in model based acoustic signal processing methods.

Author: J.M.F Moura

Publisher: Springer Science & Business Media

ISBN: 9401116040

Category: Technology & Engineering

Page: 676

View: 210

Acoustic Signal Processing for Ocean Explortion has two major goals: (i) to present signal processing algorithms that take into account the models of acoustic propagation in the ocean and; (ii) to give a perspective of the broad set of techniques, problems, and applications arising in ocean exploration. The book discusses related issues and problems focused in model based acoustic signal processing methods. Besides addressing the problem of the propagation of acoustics in the ocean, it presents relevant acoustic signal processing methods like matched field processing, array processing, and localization and detection techniques. These more traditional contexts are herein enlarged to include imaging and mapping, and new signal representation models like time/frequency and wavelet transforms. Several applied aspects of these topics, such as the application of acoustics to fisheries, sea floor swath mapping by swath bathymetry and side scan sonar, autonomous underwater vehicles and communications in underwater are also considered.

Underwater Acoustic System Analysis

This second edition, first published in 1991, contains all the valuable information in the earlier edition plus a detailed discussion of of adaptive processing as applied to spatial filtering.

Author: William S. Burdic

Publisher: Peninsula Pub

ISBN:

Category: Science

Page: 466

View: 778

Underwater Aacoustic System Analysis provides a comprehensive exploration of underwater acoustics, acoustic signal generation, and acoustic signal processing for the practicing systems analyst and systems engineer. This second edition, first published in 1991, contains all the valuable information in the earlier edition plus a detailed discussion of of adaptive processing as applied to spatial filtering. Highlights of the book are: * Generation and propagation of compressional acoustic acoustic waves in the ocean * narrowband signatures of surface ships caused by cavitating propeller blades and diesel engine firing * Optimization of signal-to-noise ratio and spatial reslution in the presence of multiple acoustic signals * Ambient noise in the ocean, and * Examples of sytem performance analysis

ESN Information Bulletin

Acoustic Signal Processing for Ocean Exploration and the " Third Dimension " by
Peter N. Mikhalevsky , Vice President , Science Applications International
Corporation , McLean , Virginia , and CDR , U.S. Navy Reserves , assigned to the
 ...

Author:

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Category: Research

Page:

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Fundamentals of Acoustical Oceanography

The developments in the field of ocean acoustics over recent years make this book an important reference for specialists in acoustics, oceanography, marine biology, and related fields.

Author: Herman Medwin

Publisher: Academic Press

ISBN: 9780080532165

Category: Science

Page: 712

View: 832

The developments in the field of ocean acoustics over recent years make this book an important reference for specialists in acoustics, oceanography, marine biology, and related fields. Fundamentals of Acoustical Oceanography also encourages a new generation of scientists, engineers, and entrepreneurs to apply the modern methods of acoustical physics to probe the unknown sea. The book is an authoritative, modern text with examples and exercises. It contains techniques to solve the direct problems, solutions of inverse problems, and an extensive bibliography from the earliest use of sound in the sea to present references. Written by internationally recognized scientists, the book provides background to measure ocean parameters and processes, find life and objects in the sea, communicate underwater, and survey the boundaries of the sea. Fundamentals of Acoustical Oceanography explains principles of underwater sound propagation, and describes how both actively probing sonars and passively listening hydrophones can reveal what the eye cannot see over vast ranges of the turbid ocean. This book demonstrates how to use acoustical remote sensing, variations in sound transmission, in situ acoustical measurements, and computer and laboratory models to identify the physical and biological parameters and processes in the sea. * Offers an integrated, modern approach to passive and active underwater acoustics * Contains many examples of laboratory scale models of ocean-acoustic environments, as well as descriptions of experiments at sea * Covers remote sensing of marine life and the seafloor * Includes signal processing of ocean sounds, physical and biological noises at sea, and inversions * resents sound sources, receivers, and calibration * Explains high intensities; explosive waves, parametric sources, cavitation, shock waves, and streaming * Covers microbubbles from breaking waves, rainfall, dispersion, and attenuation * Describes sound propagation along ray paths and caustics * Presents sound transmissions and normal mode methods in ocean waveguides

Monitoring a Comprehensive Test Ban Treaty

NATO ASI on Acoustic Signal Processing for Ocean Exploration , Madeira , pp .
359 - 363 Maiwald , D . , Sidorovitch , D . V . , and Böhme , J . F . ( 1993 )
Broadband maximum likelihood wave parameter estimation using polarization
sensitive ...

Author: Eystein S. Husebye

Publisher: Springer

ISBN:

Category: Mathematics

Page: 836

View: 241

Proceedings of the NATO Advanced Study Institute, Alvor, Algarve, Portugal, January 23-February 1, 1995

Book Catalog of the Library and Information Services Division Subject index

1974 . SH344 . 23 . 56H6 NOAA F Horton , C . W . Signal processing of
underwater acoustic waves . 1969 . VK388 . 168 NOAA F Katsekas , James . The
normal incidence acoustic response for a liquid overlying a viscoelastic
halfspace . 1973 .

Author: Environmental Science Information Center. Library and Information Services Division

Publisher:

ISBN:

Category: Book catalogs

Page:

View: 698


Oceans 93

engineering in harmony with the ocean : proceedings Oceanic Engineering
Society (U.S.). ... "Aspects of systems engineering for a matched field processor,"
NATO ASI on Acoustic Signal Processing for Ocean Exploration, Ed. J.M.F.
Moura ...

Author:

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ISBN:

Category: Marine resources

Page:

View: 616


GEOMAR report

... of Erikbreen and Hannabreen, Liefdefjorden, NSpitsbergen. - Z. Geomorph.
N.F., 97: 123 - 144. SOMERS, M.L. (1993): Sonar Imaging of the Seabed. - In:
MOURA, J.M.F. & LOURTIE I.M.G.: Acoustic Signal Processing for Ocean
Exploration, ...

Author:

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GEOMAR attempts to build a bridge between basic research...and applied research and service for marine geosciences and offshore industry.

The Hydrographic Journal

Signal Processing for Swath Bathymetry and Concurrent Seafloor Acoustic
Imaging . Excerpt from Acoustic Signal Processing for Ocean Exploration .
Proceedings of the NATO Advanced Study Institute on Acoustic Signal
Processing for Ocean ...

Author:

Publisher:

ISBN:

Category: Hydrographic surveying

Page:

View: 227


Petroleum Abstracts

I : BACKGROUND AND SIGNIFICANCE SOMC LOGGING ACOUSTIC LOGGING
IN RANDOMLY STRATIFIED ... SOURCES MARINE EXPLORATION * SEA ICE
SEISMIC NOISE " SEISMIC RECORDING SEISMIC SIGNAL SOURCE E.G. FOR
 ...

Author:

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ISBN:

Category: Petroleum

Page:

View: 152



Oceans 98

[ 8 ] E. L. Hamilton , " Geoacoustic modeling of the sea floor , ” J. Acoust . Soc .
Am . , vol . 68 , 1313-40 , 1980 . [ 9 ] J.M. Hovem , " Mechanisms of bottom loss in
underwater acoustics , In : Acoustic Signal Processing for Ocean Exploration ...

Author:

Publisher:

ISBN:

Category: Marine resources

Page: 1853

View: 241


Coherent Digital Communications for Rapidly Fading Channels with Applications to Underwater Acoustics

Bibliography ( 1 ) R.Uric , Principles of Underwater Sound , New York : McGraw -
Hill , 1983 . ... Heard Island feasibility test for acoustic monitoring of ocean
warming , ” in NATO ASI Series on Acoustic Signal Processing for Ocean
Exploration ...

Author: Milica Stojanović

Publisher:

ISBN:

Category: Digital communications

Page: 398

View: 808


Shallow Water Acoustic Backscatter and Reverberation Measurements Using a 68 kHz Cylindrical Array

1891-1904 . 19. de Moustier , C.P. ( 1993 ) . " Signal processing for swath
bathymetry and concurrent seafloor acoustic imaging . " in : Acoustic Signal
Processing For Ocean Exploration . J.M.F. Moura and I.M.G. Lourie , eds . , NATO
ASI Series ...

Author: Timothy Cole Gallaudet

Publisher:

ISBN:

Category: Acoustic imaging

Page: 634

View: 346

The characterization of high frequency, shallow water acoustic backscatter and reverberation is important because acoustic systems are used in many scientific, commercial, and military applications. The approach taken is to use data collected by the Toroidal Volume Search Sonar (TVSS), a 68 kHz multibeam sonar capable of 360 deg imaging in a vertical plane perpendicular to its direction of travel. With this unique capability, acoustic backscatter imagery of the seafloor, sea surface, and horizontal and vertical planes in the volume is constructed from data obtained in 200 m deep waters in the Northeastern Gulf of Mexico when the TVSS was towed 78 m below the surface, 735 m astern of a towship. The processed imagery provides a quasi-synoptic characterization of the spatial and temporal structure of boundary and volume acoustic backscatter and reverberation. Diffraction, element patterns, and high sidelobe levels are shown to be the most serious problems affecting cylindrical arrays such as the TVSS, and an amplitude shading method is presented for reducing the peak sidelobe levels of irregular-line and non-coplanar arrays. Errors in the towfish's attitude and motion sensor, and irregularities in the TVSS's transmitted beampattern produce artifacts in the TVSS-derived bathymetry and seafloor acoustic backscatter imagery. Correction strategies for these problems are described, which are unique in that they use environmental information extracted from both ocean boundaries. Sea surface and volume acoustic backscatter imagery is used to explore and characterize the structure of near-surface bubble clouds, schooling fish, and zooplankton. The simultaneous horizontal and vertical coverage provided by the TVSS is shown to be a primary advantage, motivating further use of multibeam sonars in these applications.

SIO Research Activities

An analysis of the three dimensional sound field in a penetrable wedge with a
stratified fluid or elastic basement . ... In Acoustic Signal Processing for Ocean
Exploration Proceedings , J. M. F. Moura , Ed . , NATO - ASI Series , Dordrecht ...

Author: Scripps Institution of Oceanography

Publisher:

ISBN:

Category: Oceanography

Page:

View: 258


Mathematics in Signal Processing III

Wave Parameters Estimation for Transient Data , NATO ASI on Acoustic Signal
Processing for Ocean Exploration , Madeira , Portugal . 3 . Martin , W . ( 1981 ) .
Line tracking in nonstationary processes . Signal Processing , 3 , 147 - 155 . 4 .

Author: Institute of Mathematics and Its Applications

Publisher:

ISBN:

Category: Medical

Page: 445

View: 481

This is a survey of recent work in signal processing. Some of the papers report progress which has been made in established areas of research such as adaptive filtering and spectral analysis. Other papers relate to emerging topics of interest such as wavelet analysis, fractal approximation,and nonlinear filtering. Particular effort was made to include papers which consider the development of mathemtical techniques for various signal processing applications ranging from radar and communication systems to astronomy, seismology, and medical imagery. The keynote paper entitled "Adaptive Algorithms for BlindChannel Equalisation" by Professor J. G. Proakis encompasses all of these characteristics and thus sets the tone for the rest of the volume whilst reporting some highly significant research.

Acoustical Physics

Compiled by N . E . Shmakova , chief librarian of the Andreev Acoustics Institute
Acknowledgments to Reviewers of Papers The Editorial Board of this. Original
Russian ... Acoustic Signal Processing for Ocean Exploration : Proc . NATO ASI ...

Author:

Publisher:

ISBN:

Category: Sound

Page:

View: 759


Soviet Physics

Acoustics. 0.4 h Fig. 6. Temporal profile of c for the values of waveguide
parameters H, cb, a, and pb delivering the best ... Matched Field Processing in
Ocean Acoustics, Acoustic Signal Processing for Ocean Exploration, Jose M.F.
Moura and ...

Author:

Publisher:

ISBN:

Category: Sound

Page:

View: 862