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Acoustic Propagation And Scattering Wavelets And Time Frequency Analysis
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Book Synopsis Acoustic Interactions with Submerged Elastic Structures by : Ardshir Guran
Download or read book Acoustic Interactions with Submerged Elastic Structures written by Ardshir Guran and published by World Scientific. This book was released on 2001 with total page 443 pages. Available in PDF, EPUB and Kindle. Book excerpt: "\berall's work in acoustic and electromagnetic scattering has evoked much interest, in the US as well as abroad, because of its possible practical applications, as well as the theoretical understanding. Many collaborators have been inspired by it, and have now contributed to this volume. The book is an excellent contribution to the literature of Acoustics and Wave Propagation. Professor Guran is to be congratulated for organizing and editing this volume." Prof. Hans A Bethe Noble Laureate Cornell University, 1996
Book Synopsis Acoustic Interactions With Submerged Elastic Structures - Part Iii: Acoustic Propagation And Scattering, Wavelets And Time Frequency Analysis by : Dieter Guicking
Download or read book Acoustic Interactions With Submerged Elastic Structures - Part Iii: Acoustic Propagation And Scattering, Wavelets And Time Frequency Analysis written by Dieter Guicking and published by World Scientific. This book was released on 2001-07-31 with total page 443 pages. Available in PDF, EPUB and Kindle. Book excerpt: The interaction of acoustic fields with submerged elastic structures, both by propagation and scattering, is being investigated at various institutions and laboratories world-wide with ever-increasing sophistication of experiments and analysis. This book offers a collection of contributions from these research centers that represent the present state-of-the-art in the study of acoustic elastic interaction, being on the cutting edge of these investigations. This includes the description of acoustic scattering from submerged elastic objects and shells by the Resonance Scattering Theory of Flax, Dragonette and Überall, and the interaction of these phenomena in terms of interface waves. It also includes the use of this theory for the purpose of inverse scattering, i.e. the determination of the scattered objects properties from the received acoustic backscattered signals. The problem of acoustically excited waves in inhomogeneous and anisotropic materials, and of inhomogeneous propagating waves is considered. Vibrations and resonances of elastic shells, including shells with various kinds of internal attachments, are analyzed. Acoustic scattering experiments are described in the time domain, and on the basis of the Wigner-Ville distribution. Acoustic propagation in the water column over elastic boundaries is studied experimentally both in laboratory tanks, and in the field, and is analyzed theoretically. Ultrasonic nondestructive testing, including such aspects like probe modelling, scattering by various types of cracks, receiving probes and calibration by a side-drilled hole is also studied in details.A comprehensive picture of these complex phenomena and other aspects is presented in the book by researchers that are experts in each of these domains, giving up-to-date accounts of the field in all these aspects.
Book Synopsis Acoustic Propagation and Scattering, Wavelets and Time Frequency Analysis by : Ardéshir Guran
Download or read book Acoustic Propagation and Scattering, Wavelets and Time Frequency Analysis written by Ardéshir Guran and published by . This book was released on 2001 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wavelets written by Jean-Michel Combes and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: The last two subjects mentioned in the title "Wavelets" are so well established that they do not need any explanations. The first is related to them, but a short introduction is appropriate since the concept of wavelets emerged fairly recently. Roughly speaking, a wavelet decomposition is an expansion of an arbitrary function into smooth localized contributions labeled by a scale and a position pa rameter. Many of the ideas and techniques related to such expansions have existed for a long time and are widely used in mathematical analysis, theoretical physics and engineering. However, the rate of progress increased significantly when it was realized that these ideas could give rise to straightforward calculational methods applicable to different fields. The interdisciplinary structure (R.c.P. "Ondelettes") of the C.N .R.S. and help from the Societe Nationale Elf-Aquitaine greatly fostered these developments. This conference was held at the Centre National de Rencontres Mathematiques (C.I.R.M) in Marseille from December 14 to 18, 1987 and brought together an interdisciplinary mix of participants. We hope that these proceedings will convey to the reader some of the excitement and flavor of the meeting.
Book Synopsis Wave Propagation and Scattering in Random Media by : Akira Ishimaru
Download or read book Wave Propagation and Scattering in Random Media written by Akira Ishimaru and published by Elsevier. This book was released on 2013-06-11 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wave Propagation and Scattering in Random Media, Volume 1: Single Scattering and Transport Theory presents the fundamental formulations of wave propagation and scattering in random media in a unified and systematic manner, as well as useful approximation techniques applicable to a variety of different situations. The emphasis is on single scattering theory and transport theory. The reader is introduced to the fundamental concepts and useful results of the statistical wave propagation theory. This volume is comprised of 13 chapters, organized around three themes: waves in random scatterers, waves in random continua, and rough surface scattering. The first part deals with the scattering and propagation of waves in a tenuous distribution of scatterers, using the single scattering theory and its slight extension to explain the fundamentals of wave fluctuations in random media without undue mathematical complexities. Many practical problems of wave propagation and scattering in the atmosphere, oceans, and other random media are discussed. The second part examines transport theory, also known as the theory of radiative transfer, and includes chapters on wave propagation in random particles, isotropic scattering, and the plane-parallel problem. This monograph is intended for engineers and scientists interested in optical, acoustic, and microwave propagation and scattering in atmospheres, oceans, and biological media.
Book Synopsis Acoustic Interactions with Submerged Elastic Structures: Acoustic Propagation and Scattering, Wavelets and Time Frequency Analysis by :
Download or read book Acoustic Interactions with Submerged Elastic Structures: Acoustic Propagation and Scattering, Wavelets and Time Frequency Analysis written by and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Frequency and Pulse Scattering by : Allan D. Pierce
Download or read book High Frequency and Pulse Scattering written by Allan D. Pierce and published by Academic Press. This book was released on 2013-10-22 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: High Frequency and Pulse Scattering investigates high frequency and pulse scattering, with emphasis on the phenomenon of echoes from objects. Geometrical and catastrophe optics methods in scattering are discussed, along with the scattering of sound pulses and the ringing of target resonances. Caustics and associated diffraction catastrophes are also examined. Comprised of two chapters, this volume begins with a detailed account of geometrically based approximation methods in scattering theory, focusing on waves transmitted through fluid and elastic scatterers and glory scattering; surface ray representations of scattering by shells and other smooth objects; and caustics and associated diffraction catastrophes. The second chapter deals with the relation between sound pulses and the vibrational spectra of elastic submerged objects. The theory of the scattering of sound pulses from elastic and impenetrable objects is described, together with the theory of surface wave pulses. Target resonances and the singularity expansion method are also analyzed. This book will be of interest to physicists.
Book Synopsis Time-frequency-aspect Analysis and Visualization of Acoustic Scattering from Elastic Shells Submerged in Water by : Timothy J. Yoder
Download or read book Time-frequency-aspect Analysis and Visualization of Acoustic Scattering from Elastic Shells Submerged in Water written by Timothy J. Yoder and published by . This book was released on 1999 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wave Scattering Theory by : Hyo J. Eom
Download or read book Wave Scattering Theory written by Hyo J. Eom and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Fourier transform technique has been widely used in electrical engineer ing, which covers signal processing, communication, system control, electro magnetics, and optics. The Fourier transform-technique is particularly useful in electromagnetics and optics since it provides a convenient mathematical representation for wave scattering, diffraction, and propagation. Thus the Fourier transform technique has been long applied to the wave scattering problems that are often encountered in microwave antenna, radiation, diffrac tion, and electromagnetic interference. In order to u~derstand wave scattering in general, it is necessary to solve the wave equation subject to the prescribed boundary conditions. The purpose of this monograph is to present rigorous so lutions to the boundary-value problems by solving the wave equation based on the Fourier transform. In this monograph the technique of separation of vari ables is used to solve the wave equation for canonical scattering geometries such as conducting waveguide structures and rectangular/circular apertures. The Fourier transform, mode-matching, and residue calculus techniques are applied to obtain simple, analytic, and rapidly-convergent series solutions. The residue calculus technique is particularly instrumental in converting the solutions into series representations that are efficient and amenable to nu merical analysis. We next summarize the steps of analysis method for the scattering problems considered in this book. 1. Divide the scattering domain into closed and open regions. 2. Represent the scattered fields in the closed and open regions in terms of the Fourier series and transform, respectively. 3.
Book Synopsis Spectral and Asymptotic Analysis of Acoustic Wave Propagation by : Calvin H. Wilcox
Download or read book Spectral and Asymptotic Analysis of Acoustic Wave Propagation written by Calvin H. Wilcox and published by . This book was released on 1976 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report presents an exposition of the results of the author's research on acoustic wave propagation during the last five years. The principal result of this research is the 'method of spectral and asymptotic analysis' for determining the structure of acoustic waves in unbounded media. In this report the method is explained and illustrated by its application to the following four classes of acoustic wave propagation problems: Scattering by bounded obstacles in a homogeneous unlimited fluid; propagation and scattering in simple and compound tubular waveguides; propagation in plane stratified fluids; propagation in crystals.
Book Synopsis Spectral and Scattering Theory for Wave Propagation in Perturbed Stratified Media by : Ricardo Weder
Download or read book Spectral and Scattering Theory for Wave Propagation in Perturbed Stratified Media written by Ricardo Weder and published by Springer. This book was released on 2012-07-10 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: The propagation of acoustic and electromagnetic waves in stratified media is a subject that has profound implications in many areas of applied physics and in engineering, just to mention a few, in ocean acoustics, integrated optics, and wave guides. See for example Tolstoy and Clay 1966, Marcuse 1974, and Brekhovskikh 1980. As is well known, stratified media, that is to say media whose physical properties depend on a single coordinate, can produce guided waves that propagate in directions orthogonal to that of stratification, in addition to the free waves that propagate as in homogeneous media. When the stratified media are perturbed, that is to say when locally the physical properties of the media depend upon all of the coordinates, the free and guided waves are no longer solutions to the appropriate wave equations, and this leads to a rich pattern of wave propagation that involves the scattering of the free and guided waves among each other, and with the perturbation. These phenomena have many implications in applied physics and engineering, such as in the transmission and reflexion of guided waves by the perturbation, interference between guided waves, and energy losses in open wave guides due to radiation. The subject matter of this monograph is the study of these phenomena.
Book Synopsis Recent Developments in Time-Frequency Analysis by : Leon Cohen
Download or read book Recent Developments in Time-Frequency Analysis written by Leon Cohen and published by Springer. This book was released on 2010-10-29 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent Developments in Time-Frequency Analysis brings together in one place important contributions and up-to-date research results in this fast moving area. Recent Developments in Time-Frequency Analysis serves as an excellent reference, providing insight into some of the most challenging research issues in the field.
Book Synopsis Special Issue on Wavelet and Time Frequency Analysis by : Bruno Torrésani
Download or read book Special Issue on Wavelet and Time Frequency Analysis written by Bruno Torrésani and published by . This book was released on 1998 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Time Spread and Frequency Coherence in Acoustic Forward Scattering from the Sea Surface by :
Download or read book Time Spread and Frequency Coherence in Acoustic Forward Scattering from the Sea Surface written by and published by . This book was released on 1994 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements of the characteristic time spread L (in seconds) of surface forward scattering were made from the research platform FLIP in January 1992. These data were compared with a model for L and matched the model to within an average relative error of 30%. The inverse, L-1 (in hertz), is a measure of the coherence bandwidth of the channel and therefore important in both designing waveforms and determining signal-processing strategies. Using the model for L, simulators can assess realistic magnitudes of the coherence bandwidth of the surface channel as a function of source/receiver geometry and environmental conditions. Time spread, Frequency coherence, Sea surface slope, Environmental acoustics.
Book Synopsis Wave Scattering Theory by : Hyo J Eom
Download or read book Wave Scattering Theory written by Hyo J Eom and published by . This book was released on 2001-05-22 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Acoustic Interactions with Submerged Elastic Structures: Acoustic scattering and resonances by : Ardéshir Guran
Download or read book Acoustic Interactions with Submerged Elastic Structures: Acoustic scattering and resonances written by Ardéshir Guran and published by World Scientific. This book was released on 1996-01-01 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: "\berall's work in acoustic and electromagnetic scattering has evoked much interest, in the US as well as abroad, because of its possible practical applications, as well as the theoretical understanding. Many collaborators have been inspired by it, and have now contributed to this volume. The book is an excellent contribution to the literature of Acoustics and Wave Propagation. Professor Guran is to be congratulated for organizing and editing this volume." Prof. Hans A Bethe Noble Laureate Cornell University, 1996
Book Synopsis Dynamics With Friction: Modeling, Analysis And Experiment (Part I) by : Ardeshir Guran
Download or read book Dynamics With Friction: Modeling, Analysis And Experiment (Part I) written by Ardeshir Guran and published by World Scientific. This book was released on 1996-08-23 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dynamics of dissipative mechanical and structural systems is being investigated at various institutions and laboratories worldwide with ever-increasing sophistication of modeling, analysis and experiments. This book offers a collection of contributions from these research centers that represent the state-of-the-art in the study of friction oscillators. It provides the reader with the fruits of a team effort by leaders in this fascinating field.The topics covered include friction modeling, self-excited friction oscillators, homogeneous frictional systems, unsteady lubricated friction, instantaneous contact geometry, impact damping, friction-induced instability and nonlinear dynamics of stick-slip systems, among other topics.This book gives a comprehensive picture of dynamics of dissipative mechanical and structural systems. It also gives an up-to-date account of the present state of the field. It will be of interest to engineers, rheologists, material scientists, applied mathematicians, physicists and historians of science and technology.
