An Application Of Inversion To Wave Propagation Classic Reprint
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An Application Of Inversion To Wave Propagation Classic Reprint
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Author : Bernard Friedman
language : en
Publisher: Forgotten Books
Release Date : 2017-11-28
An Application Of Inversion To Wave Propagation Classic Reprint written by Bernard Friedman and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-28 with Mathematics categories.
Excerpt from An Application of Inversion to Wave Propagation In the case of an inhomogeneous non-standard atmosphere the problem of propagation offers great difficulties. Attempts have been made to approximate actual atmospheres, and the resulting problems have been solved, also approximately. One such method that carried out by W. H. Furry approximates some possible atmospheric condition by two layers, each with a constant refractive index. The method is theoret ically suitable for any number of layers. In this study the layers are plans, and.in order to obtain results applicable to a spherical earth surrounded.by layers in the form of spherical shells, an earth flatten ing factor is used. This is, of course, a further approximation. Even the approximate solutions, for limited cases, have led to immense amounts of calculation in.which.progress has been slow. The present paper represents an attempt to deal with the prob lem of propogation in a.special case of an inhomogeneous atmosphere so as to obtain an exact solution. The problem is the following: We con sider a spherical earth, which is finitely conducting and within.which the index of refraction is constant, surrounded by a layer of finite depth in which the index of refraction varies inversely as the square of the distance from the earth's center. Outside this layer is an infinite layer in which the refractive index is constant. A.ecures of radiation is situated in the finite layer. We are to find the electromagnetic field at any point. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Numerical Modeling Of Seismic Wave Propagation
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Author : Johan O. A. Robertsson
language : en
Publisher: SEG Books
Release Date : 2012
Numerical Modeling Of Seismic Wave Propagation written by Johan O. A. Robertsson and has been published by SEG Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Nature categories.
The decades following SEG's 1990 volume on numerical modeling showed a step change in the application and use of full wave equation modeling methods enabled by the increase in computational power. Full waveform inversion, reverse time migration, and 3D elastic finite-difference synthetic data generation are examples. A searchable CD is included.
Mathematical Foundations Of Imaging Tomography And Wavefield Inversion
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Author : Anthony J. Devaney
language : en
Publisher:
Release Date : 2012
Mathematical Foundations Of Imaging Tomography And Wavefield Inversion written by Anthony J. Devaney and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Inverse problems (Differential equations) categories.
Inverse problems are of interest and importance across many branches of physics, mathematics, engineering and medical imaging. In this text, the foundations of imaging and wavefield inversion are presented in a clear and systematic way. The necessary theory is gradually developed throughout the book, progressing from simple wave equation based models to vector wave models. By combining theory with numerous MATLAB based examples, the author promotes a complete understanding of the material and establishes a basis for real world applications. Key topics of discussion include the derivation of solutions to the inhomogeneous and homogeneous Helmholtz equations using Green function techniques; the propagation and scattering of waves in homogeneous and inhomogeneous backgrounds; and the concept of field time reversal. Bridging the gap between mathematics and physics, this multidisciplinary book will appeal to graduate students and researchers alike. Additional resources including MATLAB codes and solutions are available online at www.cambridge.org/9780521119740.
Wave Propagation And Scattering In Random Media
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Author : Akira Ishimaru
language : en
Publisher: John Wiley & Sons
Release Date : 1999-02-04
Wave Propagation And Scattering In Random Media written by Akira Ishimaru and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-02-04 with Education categories.
Electrical Engineering Wave Propagation and Scattering in Random Media A volume in the IEEE/OUP Series on Electromagnetic Wave Theory Donald G. Dudley, Series Editor This IEEE Classic Reissue presents a unified introduction to the fundamental theories and applications of wave propagation and scattering in random media. Now for the first time, the two volumes of Wave Propagation and Scattering in Random Media previously published by Academic Press in 1978 are combined into one comprehensive volume. This book presents a clear picture of how waves interact with the atmosphere, terrain, ocean, turbulence, aerosols, rain, snow, biological tissues, composite material, and other media. The theories presented will enable you to solve a variety of problems relating to clutter, interference, imaging, object detection, and communication theory for various media. This book is expressly designed for engineers and scientists who have an interest in optical, microwave, or acoustic wave propagation and scattering. Topics covered include: Wave characteristics in aerosols and hydrometeors Optical and acoustic scattering in sea water Scattering from biological materials Pulse scattering and beam wave propagation in such media Optical diffusion in tissues and blood Transport and radiative transfer theory Kubelka—Munk flux theory and plane-parallel problem Multiple scattering theory Wave fluctuations in turbulence Strong fluctuation theory Rough surface scattering Remote sensing and inversion techniques Imaging through various media About the IEEE/OUP Series on Electromagnetic Wave Theory Formerly the IEEE Press Series on Electromagnetic Waves, this joint series between IEEE Press and Oxford University Press offers outstanding coverage of the field with new titles as well as reprintings and revisions of recognized classics that maintain long-term archival significance in electromagnetic waves and applications. Designed specifically for graduate students, practicing engineers, and researchers, this series provides affordable volumes that explore electromagnetic waves and applications beyond the undergraduate level. See page il of the front matter for a listing of books in this series.
Collected Reprints 1970 1971
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Author : Wave Propagation Laboratory
language : en
Publisher:
Release Date : 1972
Collected Reprints 1970 1971 written by Wave Propagation Laboratory and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Atmosphere categories.
Mathematical Models Methods And Applications
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Author : Abul Hasan Siddiqi
language : en
Publisher: Springer
Release Date : 2015-12-14
Mathematical Models Methods And Applications written by Abul Hasan Siddiqi and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-12-14 with Mathematics categories.
The present volume contains invited talks of 11th biennial conference on “Emerging Mathematical Methods, Models and Algorithms for Science and Technology”. The main message of the book is that mathematics has a great potential to analyse and understand the challenging problems of nanotechnology, biotechnology, medical science, oil industry and financial technology. The book highlights all the features and main theme discussed in the conference. All contributing authors are eminent academicians, scientists, researchers and scholars in their respective fields, hailing from around the world.
Fifth International Conference On Mathematical And Numerical Aspects Of Wave Propagation
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Author : Alfredo Berm?dez
language : en
Publisher: SIAM
Release Date : 2000-01-01
Fifth International Conference On Mathematical And Numerical Aspects Of Wave Propagation written by Alfredo Berm?dez and has been published by SIAM this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-01-01 with Science categories.
This conference was held in Santiago de Compostela, Spain, July 10-14, 2000. This volume contains papers presented at the conference covering a broad range of topics in theoretical and applied wave propagation in the general areas of acoustics, electromagnetism, and elasticity. Both direct and inverse problems are well represented. This volume, along with the three previous ones, presents a state-of-the-art primer for research in wave propagation. The conference is conducted by the Institut National de Recherche en Informatique et en Automatique with the cooperation of SIAM.
Wave Propagation
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Author : Peter Markos
language : en
Publisher: Princeton University Press
Release Date : 2008-04-01
Wave Propagation written by Peter Markos and has been published by Princeton University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-04-01 with Technology & Engineering categories.
This textbook offers the first unified treatment of wave propagation in electronic and electromagnetic systems and introduces readers to the essentials of the transfer matrix method, a powerful analytical tool that can be used to model and study an array of problems pertaining to wave propagation in electrons and photons. It is aimed at graduate and advanced undergraduate students in physics, materials science, electrical and computer engineering, and mathematics, and is ideal for researchers in photonic crystals, negative index materials, left-handed materials, plasmonics, nonlinear effects, and optics. Peter Markos and Costas Soukoulis begin by establishing the analogy between wave propagation in electronic systems and electromagnetic media and then show how the transfer matrix can be easily applied to any type of wave propagation, such as electromagnetic, acoustic, and elastic waves. The transfer matrix approach of the tight-binding model allows readers to understand its implementation quickly and all the concepts of solid-state physics are clearly introduced. Markos and Soukoulis then build the discussion of such topics as random systems and localized and delocalized modes around the transfer matrix, bringing remarkable clarity to the subject. Total internal reflection, Brewster angles, evanescent waves, surface waves, and resonant tunneling in left-handed materials are introduced and treated in detail, as are important new developments like photonic crystals, negative index materials, and surface plasmons. Problem sets aid students working through the subject for the first time.
Collected Reprints
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Author :
language : en
Publisher:
Release Date : 1972
Collected Reprints written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Atmosphere categories.
Full Seismic Waveform Modelling And Inversion
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Author : Andreas Fichtner
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-11-16
Full Seismic Waveform Modelling And Inversion written by Andreas Fichtner and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-11-16 with Science categories.
Recent progress in numerical methods and computer science allows us today to simulate the propagation of seismic waves through realistically heterogeneous Earth models with unprecedented accuracy. Full waveform tomography is a tomographic technique that takes advantage of numerical solutions of the elastic wave equation. The accuracy of the numerical solutions and the exploitation of complete waveform information result in tomographic images that are both more realistic and better resolved. This book develops and describes state of the art methodologies covering all aspects of full waveform tomography including methods for the numerical solution of the elastic wave equation, the adjoint method, the design of objective functionals and optimisation schemes. It provides a variety of case studies on all scales from local to global based on a large number of examples involving real data. It is a comprehensive reference on full waveform tomography for advanced students, researchers and professionals.