Scattering Wind
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Scattering Wind
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Author : Melanie Stoff Maier
language : en
Publisher:
Release Date : 2013
Scattering Wind written by Melanie Stoff Maier and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
Bragg Scattering And Equilibrium Ranges In Wind Generated Waves
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Author : Mark A. Donelan
language : en
Publisher:
Release Date : 1984
Bragg Scattering And Equilibrium Ranges In Wind Generated Waves written by Mark A. Donelan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Radar categories.
Radar Scattering From Modulated Wind Waves
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Author : G.J. Komen
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Radar Scattering From Modulated Wind Waves written by G.J. Komen 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 2012-12-06 with Science categories.
Ten years ago, de Loor and co-workers at TNO, The Netherlands, were the first to report bottom topography patterns in real aperture radar (RAR) images of the southern North Sea. At that time, this was a real puzzle. The skin depth of microwaves for sea water is only of the order of centimeters while the sea bottom is about 20 meters below the surface. Electromagnetic radiation therefore cannot probe the bottom directly. Similar phenomena were found in radar imagery from SEASAT and SIR-AlB synthetic aperture radars (SAR's) of Nantucket Shoals, the English Channel and many other coastal areas. Since then theory and ocean field experiments (Le., Phelps Bank, Georgia Straits, SARSEX, TOWARD, FASINEX, etc.) have advanced our understanding considerably. We now know that these surface signatures are the results of surface currents, perturbed by the bottom topography, which refract the propagation and modulate the energy of (short) surface waves so as to cause microwave backscatter power variations. Hence, any large scale ocean features containing nonuniform surface currents (i.e. internal waves, eddies, fronts, etc.) will cause similar manifestations in the radar imagery by means of current-wave-microwave interactions. Observations confirm this.
Acoustic Scattering From A Wind Driven Water Surface
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Author : Peter M. Schultheiss
language : en
Publisher:
Release Date : 1976
Acoustic Scattering From A Wind Driven Water Surface written by Peter M. Schultheiss and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with categories.
A very substantial fraction of the effort was devoted to improving the experimental facility. A partly automated hydrophone positioning system was installed in order to facilitate measurement of scattered power for a variety of transmitter and receiver locations. Improved hydrophone amplifiers now furnish the required signal to noise ratios for reliable measurements with receiver placement varying all the way from the forward-scatter to the back-scatter postion. A greatly improved waveheight probe will permit characterization of surface statistics at a level of detail not previously accessible. Such a level of detail appears to be essential to any effort to reconcile experiment with theory. The construction process is now largely complete and measurements are in progress. The first azimuthal surveys of scattered power have been carried out and are included in this report. It is clear from this limited data set that some key features of the scattering process (e.g. back scattered power level) are poorly predicted by existing theory. A major portion of this report is therefore devoted to a review of theoretical background. The standard analytical approaches are examined to see what changes in the usual assumptions might lead to results more compatible with experimental observations.
Radar Scattering And Imaging Of Rough Surfaces
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Author : Kun-Shan Chen
language : en
Publisher: CRC Press
Release Date : 2020-11-19
Radar Scattering And Imaging Of Rough Surfaces written by Kun-Shan Chen and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-11-19 with Technology & Engineering categories.
Radar scattering and imaging of rough surfaces is an active interdisciplinary area of research with many practical applications in fields such as mineral and resource exploration, ocean and physical oceanography, military and national defense, planetary exploration, city planning and land use, environmental science, and many more. By focusing on the most advanced analytical and numerical modeling and describing both forward and inverse modeling, Radar Scattering and Imaging of Rough Surfaces: Modeling and Applications with MATLAB® connects the scattering process to imaging techniques by vivid examples through numerical and experimental demonstrations and provides computer codes and practical uses. This book is unique in its simultaneous treatment of radar scattering and imaging. Key Features Bridges physical modeling with simulation for resolving radar imaging problems (the first comprehensive work to do so) Provides excellent basic and advanced information for microwave remote-sensing professionals in various fields of science and engineering Covers most advanced analytical and numerical modeling for both backscattering and bistatic scattering Includes MATLAB® codes useful not only for academics but also for radar engineers and scientists to develop tools applicable in different areas of earth studies Covering both the theoretical and the practical, Radar Scattering and Imaging of Rough Surfaces: Modeling and Applications with MATLAB® is an invaluable resource for professionals and students using remote sensing to study and explain the Earth and its processes. University and research institutes, electrical and radar engineers, remote-sensing image users, application software developers, students, and academics alike will benefit from this book. The author, Kun-Shan Chen, is an internationally known and respected engineer and scientist and an expert in the field of electromagnetic modeling.
Backscattering From Multiscale Rough Surfaces With Application To Wind Scatterometry
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Author : Adrian K. Fung
language : en
Publisher: Artech House
Release Date : 2015-06-01
Backscattering From Multiscale Rough Surfaces With Application To Wind Scatterometry written by Adrian K. Fung and has been published by Artech House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-06-01 with Technology & Engineering categories.
This resource explains and demonstrates the backscattering properties of multiscale rough surfaces, and illustrates their application to establish the geophysical model function (GMF) needed in wind scatterometry. This book also explains how the mechanisms of backscattering change with frequency and the incident angle on a multiscale surface and how to recognize single scale versus multiscale surfaces – very useful information for those wanting to use backscattering models more efficiently.
Acoustic Scattering From Composite Wind Wave Surfaces Ii Backscatter Cross Sections And Doppler Effects At High Frequencies And Small Angles For Bubble Free Regimes
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Author : David Middleton
language : en
Publisher:
Release Date : 1986
Acoustic Scattering From Composite Wind Wave Surfaces Ii Backscatter Cross Sections And Doppler Effects At High Frequencies And Small Angles For Bubble Free Regimes written by David Middleton and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with categories.
The present study continues the investigation of the author embodied in NUSC Technical Document TD-78205. Here we are again concerned with underwater acoustic scattering from the random moving wind-wave surface of the ocean. In particular, we are concerned with high frequency O(5-20 kHz), small grazing angle configurations O(5-25), and near-surface as well as volume regimes which are bubble-free vis-a-vis surface effects. Our efforts here are specifically directed to the calculation of doppler shift an doppler spread produced by the wind-driven ocean surface. Included also is a summary of a more complete model of the soliton scattering mechanism originally postulated and described. This more complete model is based on recent work of Middleton and Mellen.
Acoustic Scattering From Composite Wind Wave Surfaces 3 Forward Scatter Intensities And Spatial Coherence At Low And High Frequencies And Small Grazing Angles For Bubble Free Regimes
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Author : David Middleton
language : en
Publisher:
Release Date : 1987
Acoustic Scattering From Composite Wind Wave Surfaces 3 Forward Scatter Intensities And Spatial Coherence At Low And High Frequencies And Small Grazing Angles For Bubble Free Regimes written by David Middleton and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with categories.
The present investigation continues the earlier studies of the author embodied in NUSC Technical Document TD-7025 and Technical Report TR-7635. Underwater acoustic scattering from the random moving wind-wave surface of the ocean is again considered. Specifically, one is now concerned with both high 0(5-20 kHz) and low 0(0.2-2.0kHz) frequency emissions and small grazing angles 0(
Scattering Two Volume Set
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Author : E. R. Pike
language : en
Publisher: Elsevier
Release Date : 2001-10-09
Scattering Two Volume Set written by E. R. Pike and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-10-09 with Science categories.
Scattering is the collision of two objects that results in a change of trajectory and energy. For example, in particle physics, such as electrons, photons, or neutrons are "scattered off" of a target specimen, resulting in a different energy and direction. In the field of electromagnetism, scattering is the random diffusion of electromagnetic radiation from air masses is an aid in the long-range sending of radio signals over geographic obstacles such as mountains. This type of scattering, applied to the field of acoustics, is the spreading of sound in many directions due to irregularities in the transmission medium. Volume I of Scattering will be devoted to basic theoretical ideas, approximation methods, numerical techniques and mathematical modeling. Volume II will be concerned with basic experimental techniques, technological practices, and comparisons with relevant theoretical work including seismology, medical applications, meteorological phenomena and astronomy. This reference will be used by researchers and graduate students in physics, applied physics, biophysics, chemical physics, medical physics, acoustics, geosciences, optics, mathematics, and engineering. This is the first encyclopedic-range work on the topic of scattering theory in quantum mechanics, elastodynamics, acoustics, and electromagnetics. It serves as a comprehensive interdisciplinary presentation of scattering and inverse scattering theory and applications in a wide range of scientific fields, with an emphasis, and details, up-to-date developments. Scattering also places an emphasis on the problems that are still in active current research. The first interdisciplinary reference source on scattering to gather all world expertise in this technique Covers the major aspects of scattering in a common language, helping to widening the knowledge of researchers across disciplines The list of editors, associate editors and contributors reads like an international Who's Who in the interdisciplinary field of scattering
Individual Particle Scattering And Single Burst Digital Correlation For Remote Atmospheric Wind Measurements
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Author : C. Y. She
language : en
Publisher:
Release Date : 1979
Individual Particle Scattering And Single Burst Digital Correlation For Remote Atmospheric Wind Measurements written by C. Y. She and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with categories.