| Description |
1 online resource (438 pages) |
| Contents |
Cover; Title Page; Copyright; Contents; About the Author; Preface; Acknowledgments; Part I Essence of Acoustics; Chapter 1 Acoustic Wave Equation and Its Basic Physical Measures; 1.1 Introduction; 1.2 One-Dimensional Acoustic Wave Equation; 1.2.1 Impedance; 1.3 Three-Dimensional Wave Equation; 1.4 Acoustic Intensity and Energy; 1.4.1 Complex-Valued Pressure and Intensity; 1.5 The Units of Sound; 1.6 Analysis Methods of Linear Acoustic Wave Equation; 1.6.1 Acoustic Wave Equation and Boundary Condition; 1.6.2 Eigenfunctions and Modal Expansion Theory |
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1.6.3 Integral Approach Using Green's Function1.7 Solutions of the Wave Equation; 1.7.1 Plane Wave; 1.7.2 Spherical Wave; 1.8 Chapter Summary; References; Chapter 2 Radiation, Scattering, and Diffraction; 2.1 Introduction/Study Objectives; 2.2 Radiation of a Breathing Sphere and a Trembling Sphere; 2.3 Radiation from a Baffled Piston; 2.4 Radiation from a Finite Vibrating Plate; 2.5 Diffraction and Scattering; 2.6 Chapter Summary; 2.7 Essentials of Radiation, Scattering, and Diffraction; 2.7.1 Radiated Sound Field from an Infinitely Baffled Circular Piston |
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2.7.2 Sound Field at an Arbitrary Position Radiated by an Infinitely Baffled Circular Piston2.7.3 Understanding Radiation, Scattering, and Diffraction Using the Kirchhoff-Helmholtz Integral Equation; 2.7.4 Scattered Sound Field Using the Rayleigh Integral Equation; References; Part II Sound Visualization; Chapter 3 Acoustic Holography; 3.1 Introduction; 3.2 The Methodology of Acoustic Source Identification; 3.3 Acoustic Holography: Measurement, Prediction, and Analysis; 3.3.1 Introduction and Problem Definitions; 3.3.2 Prediction Process |
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3.3.3 Mathematical Derivations of Three Acoustic Holography Methods and Their Discrete Forms3.3.4 Measurement; 3.3.5 Analysis of Acoustic Holography; 3.4 Summary; References; Chapter 4 Beamforming; 4.1 Introduction; 4.2 Problem Statement; 4.3 Model-Based Beamforming; 4.3.1 Plane and Spherical Wave Beamforming; 4.3.2 The Array Configuration; 4.4 Signal-Based Beamforming; 4.4.1 Construction of Correlation Matrix in Time Domain; 4.4.2 Construction of Correlation Matrix in Frequency Domain; 4.4.3 Correlation Matrix of Multiple Sound Sources; 4.5 Correlation-Based Scan Vector Design |
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4.5.1 Minimum Variance Beamformer4.5.2 Linear Prediction; 4.6 Subspace-Based Approaches; 4.6.1 Basic Principles; 4.6.2 MUSIC Beamformer; 4.6.3 ESPRIT; 4.7 Wideband Processing Technique; 4.7.1 Frequency-Domain Approach: Mapping to the Beam Space; 4.7.2 Coherent Subspace Method (CSM); 4.7.3 Partial Field Decomposition in Beam Space; 4.7.4 Time-Domain Technique; 4.7.5 Moving-Source Localization; 4.8 Post-Processing Techniques; 4.8.1 Deconvolution and Beamforming; 4.8.2 Nonnegativity Constraint; 4.8.3 Nonnegative Least-Squares Algorithm; 4.8.4 DAMAS; References; Part III Sound Manipulation |
| Summary |
Unique in addressing two different problems - sound visualization and manipulation - in a unified way Advances in signal processing technology are enabling ever more accurate visualization of existing sound fields and precisely defined sound field production. The idea of explaining both the problem of sound visualization and the problem of the manipulation of sound within one book supports this inter-related area of study. With rapid development of array technologies, it is possible to do much in terms of visualization and manipulation, among other technologies involved with the spatial dis |
| Notes |
Chapter 5 Sound Focusing |
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Print version record |
| Subject |
Helmholtz equation.
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Sound-waves -- Mathematical models
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Helmholtz equation.
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Sound-waves -- Mathematical models.
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| Form |
Electronic book
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| Author |
Choi, Jung-Woo
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| ISBN |
9781118368497 |
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1118368495 |
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