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基本説明
The fourth edition of a bestseller examines the translation of physical understanding of sound in the sea into mathematical models that can simulate acoustic propagation, noise and reverberation in the ocean.
Full Description
Underwater Acoustic Modeling and Simulation, Fourth Edition continues to provide the most authoritative overview of currently available propagation, noise, reverberation, and sonar-performance models. This fourth edition of a bestseller discusses the fundamental processes involved in simulating the performance of underwater acoustic systems and emphasizes the importance of applying the proper modeling resources to simulate the behavior of sound in virtual ocean environments.New to the Fourth EditionExtensive new material that addresses recent advances in inverse techniques and marine-mammal protectionProblem sets in each chapterUpdated and expanded inventories of available models Designed for readers with an understanding of underwater acoustics but who are unfamiliar with the various aspects of modeling, the book includes sufficient mathematical derivations to demonstrate model formulations and provides guidelines for selecting and using the models. Examples of each type of model illustrate model formulations, model assumptions, and algorithm efficiency. Simulation case studies are also included to demonstrate practical applications.Providing a thorough source of information on modeling resources, this book examines the translation of our physical understanding of sound in the sea into mathematical models that simulate acoustic propagation, noise, and reverberation in the ocean. The text shows how these models are used to predict and diagnose the performance of complex sonar systems operating in the undersea environment.
Contents
IntroductionBackgroundMeasurements and PredictionDevelopments in ModelingAdvances in SimulationOperational ChallengesInverse Acoustic Sensing of the OceansStandard DefinitionsAcoustical OceanographyBackgroundPhysical and Chemical PropertiesSound SpeedBoundariesDynamic FeaturesBiologicsPropagation I: Observations and Physical ModelsBackgroundNature of MeasurementsBasic ConceptsSea-Surface BoundarySea-Floor BoundaryAttenuation and Absorption in Sea WaterSurface DuctsDeep Sound ChannelConvergence ZonesReliable Acoustic PathShallow-Water DuctsArctic Half-ChannelCoherencePropagation II: Mathematical Models (Part One)BackgroundTheoretical Basis for Propagation ModelingRay-Theory ModelsNormal-Mode ModelsMultipath Expansion ModelsFast-Field ModelsParabolic Equation ModelsThe RAYMODE Model: A Specific ExampleNumerical Model SummariesPropagation II: Mathematical Models (Part Two)BackgroundSurface Duct ModelsShallow-Water Duct ModelsArctic ModelsData Support RequirementsSpecial Applications and Inverse TechniquesBackgroundStochastic ModelingBroadband ModelingMatched Field ProcessingTransmutation ApproachesNonlinear Acoustics and ChaosThree-Dimensional ModelingOcean Fronts, Eddies, and Internal WavesCoupled Ocean-Acoustic ModelingAcoustic TomographyPhase Conjugation and Time-Reversal MirrorsDeductive Geoacoustic InversionPrediction Uncertainties in Complex EnvironmentsRapid Environmental AssessmentsUnderwater Acoustic Networks and VehiclesMarine-Mammal ProtectionThrough-the-Sensor Parameter EstimationSeismo-Acoustic InversionNoise I: Observations and Physical ModelsBackgroundNoise Sources and SpectraDepth DependenceDirectionalitySurf NoiseArctic Ambient NoiseAcoustic DaylightGeoacoustic InversionAcoustic Rain GaugesNoise II: Mathematical ModelsBackgroundTheoretical Basis for Noise ModelingAmbient-Noise ModelsThe RANDI Model: A Specific ExampleThe Noise NotchBeam-Noise Statistics ModelsData Support RequirementsNumerical Model SummariesReverberation I: Observations and Physical ModelsBackgroundVolume ReverberationBoundary ReverberationInversion TechniquesReverberation II: Mathematical ModelsBackgroundTheoretical Basis for Reverberation ModelingCell-Scattering ModelsThe REVMOD Model: A Specific ExampleBistatic ReverberationPoint-Scattering ModelsNumerical Model SummariesSonar Performance ModelsBackgroundSonar EquationsThe NISSM Model: A Specific ExampleModel Operating SystemsAdvanced Signal Processing IssuesData Sources and AvailabilityNumerical Model SummariesModel EvaluationBackgroundPast Evaluation EffortsAnalytical Benchmark SolutionsQuantitative Accuracy AssessmentsThe POSSM Experience: A Specific ExampleEvaluation GuidelinesDocumentation StandardsSimulationBackgroundHierarchical LevelsSimulation InfrastructureHigh-Level ArchitectureTestbedsApplicationsReferencesAppendix A: Abbreviations and AcronymsAppendix B: Glossary of TermsAppendix C: Web SitesAppendix D: Problem SetsIndex
