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To intelligently select underwater communication and networking standards, it must be possible to rank the performance of candidate coding schemes and protocols for realistic topologies, applications and environments The cost and logistic complexity of conducting extensive trials at sea over a wide range of parameters inevitably steers interest towards modelling and simulation We therefore need to first develop physics based simulation, emulation and hardware in the loop technologies to estimate performance These must be validated with select at sea comparisons, which may include low cost internet connected testbeds This conference aims to bring together key people in UW communications networking to review the state of the art and share understanding of performance constraints and trade offs with a view to catalysing consensus on standards for interoperability.
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The demand to explore the largest and also one of the richest parts of our planet, the advances in signal processing promoted by an exponential growth in computation power and a thorough study of sound propagation in the underwater realm, have lead to remarkable advances in sonar technology in the last years.The work on hand is a sum of knowledge of several authors who contributed in various aspects of sonar technology. This book intends to give a broad overview of the advances in sonar technology of the last years that resulted from the research effort of the authors in both sonar systems and their applications. It is intended for scientist and engineers from a variety of backgrounds and even those that never had contact with sonar technology before will find an easy introduction with the topics and principles exposed here.
Sonar. --- Asdic --- Echo ranging --- Sound navigation ranging --- Detectors --- Electronics in navigation --- Signals and signaling, Submarine --- Ultrasonic equipment --- Underwater acoustics --- Electronic devices & materials
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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. --- Asdic --- Echo ranging --- Sound navigation ranging --- Detectors --- Electronics in navigation --- Signals and signaling, Submarine --- Ultrasonic equipment --- Underwater acoustics --- Acoustic & sound engineering
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Underwater acoustic telemetry --- Sensor networks --- Signal processing --- Acoustic telemetry, Underwater --- Telemetry, Underwater acoustic --- Telesonar --- Undersea acoustic telemetry --- Underwater acoustic communication systems --- Signals and signaling, Submarine --- Telecommunication --- Underwater acoustics
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Underwater acoustic telemetry --- Telecommunication systems --- Sensor networks --- Acoustic telemetry, Underwater --- Telemetry, Underwater acoustic --- Telesonar --- Undersea acoustic telemetry --- Underwater acoustic communication systems --- Signals and signaling, Submarine --- Telecommunication --- Underwater acoustics
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Telecommunication systems --- Underwater acoustic telemetry --- Acoustic telemetry, Underwater --- Telemetry, Underwater acoustic --- Telesonar --- Undersea acoustic telemetry --- Underwater acoustic communication systems --- Signals and signaling, Submarine --- Telecommunication --- Underwater acoustics
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Underwater acoustic telemetry --- Telecommunication systems --- Acoustic telemetry, Underwater --- Telemetry, Underwater acoustic --- Telesonar --- Undersea acoustic telemetry --- Underwater acoustic communication systems --- Signals and signaling, Submarine --- Telecommunication --- Underwater acoustics
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