Underwater Acoustics

Underwater Acoustics

Author: Richard P. Hodges

Publisher: John Wiley & Sons

Published: 2011-06-28

Total Pages: 386

ISBN-13: 1119957494

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Offering complete and comprehensive coverage of modern sonar spectrum system analysis, Underwater Acoustics: Analysis, Design and Performance of Sonar provides a state-of-the-art introduction to the subject and has been carefully structured to offer a much-needed update to the classic text by Urick. Expanded to included computational approaches to the topic, this book treads the line between the highly theoretical and mathematical texts and the more populist, non-mathematical books that characterize the existing literature in the field. The author compares and contrasts different techniques for sonar design, analysis and performance prediction and includes key experimental and theoretical results, pointing the reader towards further detail with extensive references. Practitioners in the field of sonar design, analysis and performance prediction as well as graduate students and researchers will appreciate this new reference as an invaluable and timely contribution to the field. Chapters include the sonar equation, radiated, self and ambient noise, active sonar sources, transmission loss, reverberation, transducers, active target strength, statistical detection theory, false alarms, contacts and targets, variability and uncertainty, modelling detections and tactical decision aids, cumulative probability of detection, tracking target motion analysis and localization, and design and evaluation of sonars


The Handbook of Sidescan Sonar

The Handbook of Sidescan Sonar

Author: Philippe Blondel

Publisher: Springer Science & Business Media

Published: 2010-05-17

Total Pages: 344

ISBN-13: 3540498869

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Sidescan sonar is proving to be the preeminent technique for researchers and professionals seeking knowledge about the structure and behavior of the seafloor, but its data is often difficult to interpret due to the physics of acoustic remote sensing, and to the varied geological processes at play. This book covers the fundamentals of sidescan sonar, incorporates new understanding of marine structures, and explains how to interpret sidescan sonar imagery and bathymetry.


Portable Scour Monitoring Equipment

Portable Scour Monitoring Equipment

Author: James Douglas Schall

Publisher: Transportation Research Board

Published: 2004

Total Pages: 103

ISBN-13: 0309087848

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Introduction and research approach -- Findings -- Interpretation, appraisal, and applications -- Conclusions and suggested research -- References -- Appendixes.


Sonar and Underwater Acoustics

Sonar and Underwater Acoustics

Author: Jean-Paul Marage

Publisher: John Wiley & Sons

Published: 2013-02-07

Total Pages: 590

ISBN-13: 1118600657

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Sonar and Underwater Acoustics brings together all the concepts necessary for designers and users of sonar systems. Unlike other books on this subject, which are often too specialized, this book is accessible to a wider audience. The first part focuses on the acoustic environment, antenna structures, and electric acoustic interface. The latter provides knowledge required to design, as well as the development and implementation of chain processes for an active sonar from the conditioning input to output processing. The reader will find a comprehensive range of all problems encountered in underwater acoustics for a sonar application, from physical phenomena governing the environment and the corresponding constraints, through to the technical definition of transducers and antennas, and the types of signal processing involved. In one section, measures in underwater acoustics are also proposed.


Principles of Sonar Performance Modelling

Principles of Sonar Performance Modelling

Author: Michael Ainslie

Publisher: Springer Science & Business Media

Published: 2010-09-14

Total Pages: 727

ISBN-13: 3540876626

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Sonar performance modelling (SPM) is concerned with the prediction of quantitative measures of sonar performance, such as probability of detection. It is a multi-disciplinary subject, requiring knowledge and expertise in the disparate fields of underwater acoustics, acoustical oceanography, sonar signal processing and statistical detection theory. No books have been published on this subject, however, since the 3rd edition of Urick’s classic work 25 years ago and so Dr Ainslie’s book will fill a much-needed gap in the market. Currently, up-to-date information can only be found, in different forms and often with conflicting information, in various journals, conference and textbook publications. Dr Michael Ainslie is eminently qualified to write this unique book. He has worked on sonar performance modeling problems since 1983. He has written many peer reviewed research articles and conference papers related to sonar performance modeling, making contributions in the fields of sound propagation and detection theory.


Sonar Systems

Sonar Systems

Author: Nikolai Kolev

Publisher: BoD – Books on Demand

Published: 2011-09-12

Total Pages: 338

ISBN-13: 9533073454

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The book is an edited collection of research articles covering the current state of sonar systems, the signal processing methods and their applications prepared by experts in the field. The first section is dedicated to the theory and applications of innovative synthetic aperture, interferometric, multistatic sonars and modeling and simulation. Special section in the book is dedicated to sonar signal processing methods covering: passive sonar array beamforming, direction of arrival estimation, signal detection and classification using DEMON and LOFAR principles, adaptive matched field signal processing. The image processing techniques include: image denoising, detection and classification of artificial mine like objects and application of hidden Markov model and artificial neural networks for signal classification. The biology applications include the analysis of biosonar capabilities and underwater sound influence on human hearing. The marine science applications include fish species target strength modeling, identification and discrimination from bottom scattering and pelagic biomass neural network estimation methods. Marine geology has place in the book with geomorphological parameters estimation from side scan sonar images. The book will be interesting not only for specialists in the area but also for readers as a guide in sonar systems principles of operation, signal processing methods and marine applications.


Sonar X3 Power!

Sonar X3 Power!

Author: Scott R. Garrigus

Publisher: Cengage Learning Ptr

Published: 2014-04-02

Total Pages: 416

ISBN-13: 9781305090194

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SONAR X3 POWER! is an all-new edition of this popular guide to Cakewalk’s powerful digital audio workstation, offering full, detailed coverage of the SONAR X3 software. The book’s comprehensive treatment begins with the basics and takes you from setup to final mix with clear, step-by-step instructions and exercises. If you’re a new user, you’ll start at the beginning and learn everything you need to know to use SONAR for recording, editing, producing, mixing, and sharing your music with the world. If you’re already a SONAR user, you’ll learn the details about all the exciting new features in SONAR X3—and you’ll sharpen your workflow and improve your music-making. SONAR X3 POWER! Is the most complete guide to SONAR X3 available, covering everything from working with SONAR files and navigating projects to advanced editing, surround sound, automation, and much more. No matter what genre you’re working in, or what part of the music/audio world you call home, you will benefit from the book’s clear guidance and the wealth of production tips and shortcuts. Build and strengthen your SONAR expertise with SONAR X3 POWER!


Ad Hoc Networks

Ad Hoc Networks

Author: Yifeng Zhou

Publisher: Springer

Published: 2018-01-18

Total Pages: 218

ISBN-13: 3319744399

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This book constitutes the refereed proceedings of the 9th International Conference on Ad Hoc Networks, AdHocNets 2017, held in Niagara Falls, Ontario, USA, in September 2017. The 19 full papers were selected from 30 submissions and cover a variety of network paradigms including mobile ad hoc networks (MANETs), sensor networks, vehicular networks, underwater networks, airborne networks, underground networks, personal area networks, device-to-device (D2D) communications in 5G cellular networks, and home networks. The papers present a wide range of applications in civilian, commercial, and military areas.


Directed Sonar Sensing for Mobile Robot Navigation

Directed Sonar Sensing for Mobile Robot Navigation

Author: John J. Leonard

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 199

ISBN-13: 1461536529

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This monograph is a revised version of the D.Phil. thesis of the first author, submitted in October 1990 to the University of Oxford. This work investigates the problem of mobile robot navigation using sonar. We view model-based navigation as a process of tracking naturally occurring environment features, which we refer to as "targets". Targets that have been predicted from the environment map are tracked to provide that are observed, but not predicted, vehicle position estimates. Targets represent unknown environment features or obstacles, and cause new tracks to be initiated, classified, and ultimately integrated into the map. Chapter 1 presents a brief definition of the problem and a discussion of the basic research issues involved. No attempt is made to survey ex haustively the mobile robot navigation literature-the reader is strongly encouraged to consult other sources. The recent collection edited by Cox and Wilfong [34] is an excellent starting point, as it contains many of the standard works of the field. Also, we assume familiarity with the Kalman filter. There are many well-known texts on the subject; our notation derives from Bar-Shalom and Fortmann [7]. Chapter 2 provides a detailed sonar sensor model. A good sensor model of our approach to navigation, and is used both for is a crucial component predicting expected observations and classifying unexpected observations.