Atmospheric Propagation
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General Theory Of Light Propagation And Imaging Through The Atmosphere
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Author : T. Stewart McKechnie
language : en
Publisher: Springer Nature
Release Date : 2022-10-06
General Theory Of Light Propagation And Imaging Through The Atmosphere written by T. Stewart McKechnie and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-10-06 with Science categories.
This 2nd edition lays out an updated version of the general theory of light propagation and imaging through Earth’s turbulent atmosphere initially developed in the late ‘70s and ‘80s, with additional applications in the areas of laser communications and high-energy laser beam propagation. New material includes a chapter providing a comprehensive mathematical tool set for precisely characterizing image formation with the anticipated Extremely Large Telescopes (ELTS), enabling a staggering range of star image shapes and sizes; existing chapters rewritten or modified so as to supplement the mathematics with clearer physical insight through written and graphical means; a history of the development of present-day understanding of light propagation and imaging through the atmosphere as represented by the general theory described. Beginning with the rudimentary, geometrical-optics based understanding of a century ago, it describes advances made in the 1960s, including the development of the ‘Kolmogorov theory,’ the deficiencies of which undermined its credibility, but not before it had done enormous damage, such as construction of a generation of underperforming ‘light bucket’ telescopes. The general theory requires no a priori turbulence assumptions. Instead, it provides means for calculating the turbulence properties directly from readily-measurable properties of star images.
Digital Communications With Emphasis On Data Modems
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Author : Richard W. Middlestead
language : en
Publisher: John Wiley & Sons
Release Date : 2017-03-07
Digital Communications With Emphasis On Data Modems written by Richard W. Middlestead 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 2017-03-07 with Technology & Engineering categories.
This book uses a practical approach in the application of theoretical concepts to digital communications in the design of software defined radio modems. This book discusses the design, implementation and performance verification of waveforms and algorithms appropriate for digital data modulation and demodulation in modern communication systems. Using a building-block approach, the author provides an introductory to the advanced understanding of acquisition and data detection using source and executable simulation code to validate the communication system performance with respect to theory and design specifications. The author focuses on theoretical analysis, algorithm design, firmware and software designs and subsystem and system testing. This book treats system designs with a variety of channel characteristics from very low to optical frequencies. This book offers system analysis and subsystem implementation options for acquisition and data detection appropriate to the channel conditions and system specifications, and provides test methods for demonstrating system performance. This book also: Outlines fundamental system requirements and related analysis that must be established prior to a detailed subsystem design Includes many examples that highlight various analytical solutions and case studies that characterize various system performance measures Discusses various aspects of atmospheric propagation using the spherical 4/3 effective earth radius model Examines Ionospheric propagation and uses the Rayleigh fading channel to evaluate link performance using several robust waveform modulations Contains end-of-chapter problems, allowing the reader to further engage with the text Digital Communications with Emphasis on Data Modems is a great resource for communication-system and digital signal processing engineers and students looking for in-depth theory as well as practical implementations.
Optics In Atmospheric Propagation And Adaptive Systems
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Author :
language : en
Publisher:
Release Date : 1998
Optics In Atmospheric Propagation And Adaptive Systems written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Atmospheric turbulence categories.
Optics In Atmospheric Propagation And Random Phenomena
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Author : Anton Kohnle
language : en
Publisher:
Release Date : 1994
Optics In Atmospheric Propagation And Random Phenomena written by Anton Kohnle and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Science categories.
Numerical Simulation Of Optical Wave Propagation With Examples In Matlab
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Author : Jason Daniel Schmidt
language : en
Publisher: Society of Photo Optical
Release Date : 2010
Numerical Simulation Of Optical Wave Propagation With Examples In Matlab written by Jason Daniel Schmidt and has been published by Society of Photo Optical this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Science categories.
Numerical Simulation of Optical Wave Propagation is solely dedicated to wave-optics simulations. The book discusses digital Fourier transforms (FT), FT-based operations, multiple methods of wave-optics simulations, sampling requirements, and simulations in atmospheric turbulence.
Ddc Retrieval And Indexing Terminology
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Author : Defense Documentation Center (U.S.).
language : en
Publisher:
Release Date : 1975
Ddc Retrieval And Indexing Terminology written by Defense Documentation Center (U.S.). and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with Subject headings categories.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1995
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Aeronautics categories.
Modern Millimeter Wave Technologies
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Author : Tasuku Teshirogi
language : en
Publisher: IOS Press
Release Date : 2001
Modern Millimeter Wave Technologies written by Tasuku Teshirogi and has been published by IOS Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Science categories.
This text covers the study of millimeter-waves from the basics to the state-of-the-art devices and application systems.
Technical Abstract Bulletin
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Author :
language : en
Publisher:
Release Date : 1978
Technical Abstract Bulletin written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Science categories.
Computational Atmospheric Acoustics
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Author : E.M. Salomons
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Computational Atmospheric Acoustics written by E.M. Salomons 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.
Noise from cars, trains, and aeroplanes can be heard at large distances from the source. Accurate predictions of the loudness of the noise require accurate computations of sound propagation in the atmosphere. This book describes models that can be used for these computations. The models take into account complex effects of the atmosphere and the ground surface on sound waves, including the effects of wind and temperature distributions, atmospheric turbulence, irregular terrain, and noise barriers. The main text of the book focuses on physical effects in atmospheric acoustics. The effects are illustrated by many numerical examples. The main text requires a very limited mathematical background from the reader; detailed mathematical descriptions of the models, developed from the basic principles of acoustics, are presented in appendices. Models for moving media are compared with models that are based on the effective sound speed approach. Both two-dimensional models and three-dimensional models are presented. As meteorological effects play an important role in atmospheric acoustics, selected topics from boundary layer meteorology and the theory of turbulence are also presented.