Weibull Radar Clutter
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Weibull Radar Clutter
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Author : Matsuo Sekine
language : en
Publisher: IET
Release Date : 1990
Weibull Radar Clutter written by Matsuo Sekine and has been published by IET this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Technology & Engineering categories.
The material presented in this book is intended to provide the reader with a pratical treatment of Weibull distribution as applied to radar systems. This book is primarily written for radar engineeres. Topics include: general derivation of Weibull distribution, measurements of Weibull-distributed clutter, comparison of Weibulkl distribution with various distributions including Rayleigh, gamma, log-nornal and k- distributions to name just a few.
The Radar Range Equation For The Detection Of Steady Targets In Weibull Clutter
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Author : Leon C. Rountree
language : en
Publisher:
Release Date : 1990
The Radar Range Equation For The Detection Of Steady Targets In Weibull Clutter written by Leon C. Rountree and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with categories.
In this thesis, the detection characteristics of a steady target immersed in radar clutter characterized by returns statistically modeled according to a Weibull probability density function are developed. A detector model is developed by modifying an envelope detection scheme used to detect deterministic signals in Gaussian noise. By examining the statistics of the detector output under alternate hypotheses, an expression for the probability of detection (P sub d) is developed in terms of the probability of false alarm (P sub fa), the signal-to-clutter ratio (SCR), and the Weibull skewness parameter (b), which is a function of the type of terrain causing the clutter. This expression is used in conjunction with a form of the radar range equation for area clutter to describe the relationship between p sub d, p sub fa, SCR, b, and the radar detection range. This relationship involves Marcum's Q sub d function and an algorithm is presented which evaluates this function. The algorithm is a series approximation, also presented as a recursive relationship, that can be computed to a desired precision. Plots of P sub d versus SCR and P sub d versus range are developed for various values of p sub fa and b. The plots provide a means of evaluating the detector performance and predicting the radar detection range for several values of b.
Low Angle Radar Land Clutter
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Author : J. Barrie Billingsley
language : en
Publisher: William Andrew
Release Date : 2002-04-01
Low Angle Radar Land Clutter written by J. Barrie Billingsley and has been published by William Andrew this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-04-01 with Technology & Engineering categories.
A necessary reference for all radar engineers or analysts including many levels of managers, advisors and decision makers in the U.S. and worldwide radar industry. Directly useful in both military (DOD) and civilian (FAA) applications. The result of 20 years of research at MIT Lincoln Lab, this book is of the most significant tehcnological consequence for the industry. It actually solves the problem of low angle radar land clutter by showing the reader how to design and predict the performance of radars that operate in situations where land clutter prevalent. Radar land clutter constitutes the unwanted radar echoes returned from the earth's surface that compete against and interfere with the desired echoes returned by targets such as aircraft and other moving and stationary targets. The ability to accurately predict the effects of land clutter in surface radar has been an unsolved problem for many years. This book is comprehensive in addressing the topic, containing many interrelated results, each important in its own right. It unifies and integrates all the results so as to create a comprehensive, innovative, and unequaled work. The results of this book directly enable the reader to predict land clutter effects in surface radar. Modern military aircraft deliberately fly low to hide their presence from radars that are also dealing with land clutter. Depending on the terrain, the performance of the radar varies greatly from very good to very poor. This book helps radar engineers provide accurate assessments of ground clutter, thus bringing their ability to detect and operate against low flying aircraft to a much higher and much more consistent level.
Sea Clutter
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Author : Keith Ward
language : en
Publisher: IET
Release Date : 2013-04-22
Sea Clutter written by Keith Ward and has been published by IET this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-22 with Sports & Recreation categories.
The second edition of Sea Clutter: Scattering, the K Distribution and Radar Performance gives an authoritative account of our current understanding of radar sea clutter. Topics covered include the characteristics of radar sea clutter, modelling radar scattering by the ocean surface, statistical models of sea clutter, the simulation of clutter and other random processes, detection of small targets in sea clutter, imaging ocean surface features, radar detection performance calculations, CFAR detection, and the specification and measurement of radar performance. The calculation of the performance of practical radar systems is presented in sufficient detail for the reader to be able to tackle related problems with confidence. For this fully revised and updated second edition new material has been added on the Doppler characteristics of sea clutter and associated detection processing methods, bistatic sea clutter measurements; electromagnetic scattering theory of littoral sea clutter and bistatic sea clutter; the use of models for predicting radar performance, including discussion of Lognormal and Weibull models; further results and extended discussion on the modelling of the K distribution shape parameter for different conditions; the simulation of Doppler spectra of sea clutter; high grazing angle scattering; and the use of the K distribution in other fields. The material has been reorganized into four parts: Sea Clutter Properties, Mathematics of the K distribution, Radar Detection and Physical Modelling. This reorganization allows readers to access specific areas quickly, without the need for an extensive knowledge of the other parts.
Clutter Spatial Distribution And New Approaches Of Parameter Estimation For Weibull And K Distributions
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Author : Yunhan Dong
language : en
Publisher:
Release Date : 2004
Clutter Spatial Distribution And New Approaches Of Parameter Estimation For Weibull And K Distributions written by Yunhan Dong and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Distribution (Probability theory) categories.
The Weibull Distribution Applied To The Ground Clutter Backscatter Coefficient
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Author : Robert R. Boothe
language : en
Publisher:
Release Date : 1969
The Weibull Distribution Applied To The Ground Clutter Backscatter Coefficient written by Robert R. Boothe and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with categories.
Spatial distributions of the ground clutter backscatter coefficient sigma 0 for various types of terrain have been found to fit a Weibull distribution quite well. This report discusses the Weibull distribution quite well. This report discusses the Weibull probability distribution function and its characteristics, and presents some clutter measurements that demonstrate the Weibull distribution. The data presented include measurements taken at L-, S-, and X-band frequencies, at several depression angles, and for various resolution cell sizes. A method for generation of random variables that fit a selected Weibull statistical population for use in radar simulations is also given.
Noise And Clutter Rejection In Radars And Imaging Sensors
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Author : T. Suzuki
language : en
Publisher: North Holland
Release Date : 1990
Noise And Clutter Rejection In Radars And Imaging Sensors written by T. Suzuki and has been published by North Holland this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Technology & Engineering categories.
The 138 papers contained in this volume present the newest and most sophisticated techniques, which have been developed in different but related fields of research from radar to medical and industrial imaging. Enormously extended areas of research are covered, they are however, related to each other from the view point of noise and clutter rejection. The interdisciplinary nature of the proceedings will make them of considerable interest to a broad readership. A selection of contents: Polarimetric SAR: Principles and Applications (F.T. Ulaby). Flow field characterization by NMR (O. Nalcioglu). Weibull clutter and its suppression (M. Sekine). Sessions: A. Noise and Clutter Properties. I. Application of the K-distribution to Radar Clutter (K.D. Ward). Sea CAS: Sea clutter acquisition system (J. Dunn-Rogers). Space and frequency correlation of multipath fading due to sea surface scattering and its reduction by diversity technique for low G/T mobile satellite communications (M. Yasunaga et al.). II. A study of land clutter spectrum (N. Li). Polarimetric measurement of the propagation characteristics of forest clutter (M.W. Whitt et al.). Remote Sensing. I.
Sea Clutter
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Author : Keith D. Ward
language : en
Publisher: IET
Release Date : 2006-06-21
Sea Clutter written by Keith D. Ward and has been published by IET this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-06-21 with Science categories.
Sea Clutter: Scattering, the K Distribution and Radar Performance examines the statistics of radar scattering from the sea surface in terms of their relevance to radar operating in a maritime environment; including remote sensing, surveillance and targeting applications. A lot of the work in the book is based on the compound Kdistribution model for the amplitude statistics of sea clutter. In addition, the book addresses the specification of performance required by customers and the measurement of performance of systems supplied to customers.
Principles Of Radar And Sonar Signal Processing
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Author : Chevalier François Le
language : en
Publisher: Artech House
Release Date : 2002
Principles Of Radar And Sonar Signal Processing written by Chevalier François Le and has been published by Artech House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Radar categories.
Radar Detection Theory Of Sliding Window Processes
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Author : Graham Weinberg
language : en
Publisher: CRC Press
Release Date : 2017-09-27
Radar Detection Theory Of Sliding Window Processes written by Graham Weinberg and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-09-27 with Mathematics categories.
Constant false alarm rate detection processes are important in radar signal processing. Such detection strategies are used as an alternative to optimal Neyman-Pearson based decision rules, since they can be implemented as a sliding window process running on a radar range-Doppler map. This book examines the development of such detectors in a modern framework. With a particular focus on high resolution X-band maritime surveillance radar, recent approaches are outlined and examined. Performance is assessed when the detectors are run in real X-band radar clutter. The book introduces relevant mathematical tools to allow the reader to understand the development, and follow its implementation.