Download or read book Adaptive AMTI Radar written by Lawrence E. Brennan and published by . This book was released on 1973 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adaptive signal processing in airborne radars with array antennas can provide a high level of MTI performance, including automatic platform motion compensation. Methods of simplifying adaptive AMTI radars by forming subarray outputs and adding these subarray outputs adaptively are described and evaluated in this report. It is shown that in radars with many-element arrays, e.g., AI radars, ground AMTI performance can be achieved in systems with roughly nine subarray outputs from the antenna. The results obtained during the preceding three quarters of the study are summarized in this final report, and relate to the performance of space-time adaptive radar in non-uniform clutter, conformal array antennas in adaptive AMTI radar, and a method of achieving rapid convergence in adaptive systems. (Author).
Download or read book Adaptive Filtering in AMTI Radar written by Ivan P. Bottlik and published by . This book was released on 1972 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adaptive filtering is a technique for optimizing the doppler filter response in an MTI (moving target indication) radar. In airborne MTI radars, the clutter spectrum is continually changing and varies with scan angle, antenna pattern, and angular distribution of the clutter intensity. Rain backscatter, if present, has a doppler spectrum which depends on local wind velocity and wind shear. An adaptive filter senses each of these effects and adaptively controls the filter weights to maximize the signal-to-clutter ratio in the filter output. Curves are presented in this report which illustrate the performance of adaptive filters in AMTI radar. The steady-state and transient response of adaptive filters, and performance in rain, are included. Methods of simplifying adaptive filter control loops are discussed. (Author).
Download or read book Adaptive AMTI Radar Techniques Investigation written by J. E. Howard and published by . This book was released on 1971 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of the application of adaptive processing to AMTI implementation in tactical air-to-air radars is reviewed in the report. A survey of existing radar and adaptive techniques was conducted that included a review of the AMTI modes of the FLAMR and F-15 radars; a review of existing adaptive techniques in antenna processing, thresholding, filtering, and controls; and a review of recent advances in pattern recognition, learning, search algorithms, and bionics. The applicability of the existing techniques to AMTI radars was assessed, and new adaptive and learning techniques were developed for AMTI radars with the survey as a foundation. (Author).
Download or read book Advances in Adaptive Radar Detection and Range Estimation written by Chengpeng Hao and published by Springer Nature. This book was released on 2021-12-03 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive and systematic framework for the design of adaptive architectures, which take advantage of the available a priori information to enhance the detection performance. Moreover, this framework also provides guidelines to develop decision schemes capable of estimating the target position within the range bin. To this end, the readers are driven step-by-step towards those aspects that have to be accounted for at the design stage, starting from the exploitation of system and/or environment information up to the use of target energy leakage (energy spillover), which allows inferring on the target position within the range cell under test.In addition to design issues, this book presents an extensive number of illustrative examples based upon both simulated and real-recorded data. Moreover, the performance analysis is enriched by considerations about the trade-off between performances and computational requirements.Finally, this book could be a valuable resource for PhD students, researchers, professors, and, more generally, engineers working on statistical signal processing and its applications to radar systems.
Download or read book Adaptive Radar written by Frederick W. Lee and published by . This book was released on 1990 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Space time Adaptive Processing for Radar written by J. R. Guerci and published by Artech House. This book was released on 2003 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: This authoritative, leading-edge resource gives you a comprehensive overview of sample rate conversion (SRC) and its applications in software configurable radios. The book helps you understand the limits of feasible systems for sample rate conversion, as well as the limits of interpolation. You get sound advice on selecting the appropriate types of SRC for specific applications, and assistance in handling the trade-off between hardware complexity and the clock rate of a system. From an introduction to software radio and a refresher on the fundamentals of sampling and sample rate conversion, to discussions on block signal processing and well-known and novel structures for sample rate conversion, the book offers you practical guidance that enables you to quickly find solutions for your challenging projects in the field. This first-of-its-kind reference concludes with a list of questions that - when answered - helps to design a system for sample rate conversion. Over 890 equations and 90 illustrations support key topics throughout the book.
Download or read book Convergence Rate in Adaptive Radar written by and published by . This book was released on 1976 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the fourth and final quarterly progress report for a one year study of convergence in adaptive radar. During a series of earlier adaptive radar studies at TSC, funded by Naval Air Systems Command, a method of optimizing both the angular and doppler response in AMTI (Airborne Moving Target Indication) radars was described, analyzed, and simulated in some detail. These studies showed that adaptive AMTI radar can provide a major improvement in performance in a mixed clutter/ECM environment. In the first progress report the basic adaptive AMTI technique was described, and three adaptive algorithms were compared. These algorithms were sample matrix inversion SMI, inverse matrix update IMU, and the Applebaum loop algorithm. Both SMI and IMU algorithms are shown to be very fast in terms of number of data samples required for convergence. These algorithms are more complicated than the loop technique, though, and are probably best implemented using digital techniques. This report presents results of a computer simulation of analogue to digital (A/D) conversion.
Download or read book Cognitive Radar The Knowledge Aided Fully Adaptive Approach Second Edition written by Joseph R. Guerci and published by Artech House. This book was released on 2020-06-30 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: This highly-anticipated second edition of the bestselling Cognitive Radar: The Knowledge-Aided Fully Adaptive Approach, the first book on the subject, provides up-to-the-minute advances in the field of cognitive radar (CR). Adaptive waveform methods are discussed in detail, along with optimum resource allocation and radar scheduling. Chronicling the field of cognitive radar (CR), this cutting-edge resource provides an accessible introduction to the theory and applications of CR, and presents a comprehensive overview of the latest developments in this emerging area. It covers important breakthroughs in advanced radar systems, and offers new and powerful methods for combating difficult clutter environments. You find details on specific algorithmic and real-time high-performance embedded computing (HPEC) architectures. This practical book is supported with numerous examples that clarify key topics, and includes more than 370 equations.
Download or read book Radar Signal Processing and Adaptive Systems written by Ramon Nitzberg and published by Artech House Radar Library (Ha. This book was released on 1999 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: A valuable resource for radar engineers and managers of all levels, this revised edition provides an introduction to the capabilities and limitations of radar, as well as a detailed advanced study of key radar signal processing topics. The book explains the concepts and theory of radar signal processing such as resolution, ambiguities, antennas, waveforms, the theory of detecting targets in noise and/or clutter, and tracking using data processing. It also presents equations for the determination of maximum radar range in free space and as affected by multipath and the horizon.
Download or read book Cognitive Radar written by J. R. Guerci and published by Artech House. This book was released on 2010 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chronicling the new field of cognitive radar (CR), this cutting-edge resource provides an accessible introduction to the theory and applications of CR, and presents a comprehensive overview of the latest developments in this emerging area. The first book on the subject, Cognitive Radar covers important breakthroughs in advanced radar systems, and offers new and powerful methods for combating difficult clutter environments. You find details on specific algorithmic and real-time high-performance embedded computing (HPEC) architectures. This practical book is supported with numerous examples that clarify key topics, and includes more than 370 equations.
Download or read book Adaptive Radar Detection Model Based Data Driven and Hybrid Approaches written by Angelo Coluccia and published by Artech House. This book was released on 2022-11-30 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book shows you how to adopt data-driven techniques for the problem of radar detection, both per se and in combination with model-based approaches. In particular, the focus is on space-time adaptive target detection against a background of interference consisting of clutter, possible jammers, and noise. It is a handy, concise reference for many classic (model-based) adaptive radar detection schemes as well as the most popular machine learning techniques (including deep neural networks) and helps you identify suitable data-driven approaches for radar detection and the main related issues. You’ll learn how data-driven tools relate to, and can be coupled or hybridized with, traditional adaptive detection statistics; understand fundamental concepts, schemes, and algorithms from statistical learning, classification, and neural networks domains. The book also walks you through how these concepts and schemes have been adapted for the problem of radar detection in the literature and provides you with a methodological guide for the design, illustrating different possible strategies. You’ll be equipped to develop a unified view, under which you can exploit the new possibilities of the data-driven approach even using simulated data. This book is an excellent resource for Radar professionals and industrial researchers, postgraduate students in electrical engineering and the academic community.
Download or read book Adaptive Techniques for Radar Control written by Lawrence R. Burgess and published by . This book was released on 1973 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: The significance of this research and development to the Air Force is that slow, low flying aircraft and moving ground vehicles may be detected by employing an adaptively controlled antenna array with an AMTI radar set, conformally mounted in a high performance jet aircraft. Clutter cancellation is achieved through moving the active subaperture of the phased array to the rear of the aircraft with the transmission and reception of each pulse. The control unit which forms these subapertures employes a Guided Accelerated Random Search algorithm to minimize the cancelled clutter power at the output of a two-pulse canceller. Analysis of AMTI radar systems and random scattering properties of the ground led to a computer simulation of the adaptively controlled system described above. Results of this simulation demonstrate that five-foot subapertures consisting of adjacent elements from a linear uniformly spaced phased array can be adaptively controlled to cancel clutter power by better than 40 dB under a wide variety of flight conditions. Degradation in clutter cancellation from this figure due to random element spacing is nominally 20 dB.
Download or read book Adaptive Radar Detection and Estimation written by Simon Haykin and published by Wiley-Interscience. This book was released on 1992-04-15 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adaptive processing in a radar environment is necessary due to its inherently nonstable nature. A detailed mathematical treatment of the important issues in adaptive radar detection and estimation is offered. Since much of the material presented has not appeared in book form, you'll find this work fills an important gap in the known literature. Following an overview of the subject, contributors develop model-based techniques for the detection of radar targets in the presence of clutter; discuss minimum variance beamforming techniques; consider maximum likelihood bearing estimation in beamspace for an adaptive phased array radar; present an algorithm for angle-of-arrival estimation; and describe the method of multiple windows for spectrum estimation.
Download or read book Adaptive Signal Processing for Radar written by Ramon Nitzberg and published by Artech House Publishers. This book was released on 1992 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Walks the reader through adaptive approaches to radar signal processing by detailing the basic concepts of various techniques and then developing equations to analyze their performance. Finally, it presents curves that illustrate the attained performance.
Download or read book Knowledge Based Radar Detection Tracking and Classification written by Fulvio Gini and published by John Wiley & Sons. This book was released on 2008-06-09 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discover the technology for the next generation of radar systems Here is the first book that brings together the key concepts essential for the application of Knowledge Based Systems (KBS) to radar detection, tracking, classification, and scheduling. The book highlights the latest advances in both KBS and radar signal and data processing, presenting a range of perspectives and innovative results that have set the stage for the next generation of adaptive radar systems. The book begins with a chapter introducing the concept of Knowledge Based (KB) radar. The remaining nine chapters focus on current developments and recent applications of KB concepts to specific radar functions. Among the key topics explored are: Fundamentals of relevant KB techniques KB solutions as they apply to the general radar problem KBS applications for the constant false-alarm rate processor KB control for space-time adaptive processing KB techniques applied to existing radar systems Integrated end-to-end radar signals Data processing with overarching KB control All chapters are self-contained, enabling readers to focus on those topics of greatest interest. Each one begins with introductory remarks, moves on to detailed discussions and analysis, and ends with a list of references. Throughout the presentation, the authors offer examples of how KBS works and how it can dramatically improve radar performance and capability. Moreover, the authors forecast the impact of KB technology on future systems, including important civilian, military, and homeland defense applications. With chapters contributed by leading international researchers and pioneers in the field, this text is recommended for both students and professionals in radar and sonar detection, tracking, and classification and radar resource management.
Download or read book Adaptive Radar Signal Processing written by Simon Haykin and published by Wiley-Interscience. This book was released on 2007 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collaborative work presents the results of over twenty years of pioneering research by Professor Simon Haykin and his colleagues, dealing with the use of adaptive radar signal processing to account for the nonstationary nature of the environment. These results have profound implications for defense-related signal processing and remote sensing. References are provided in each chapter guiding the reader to the original research on which this book is based.
Download or read book Radar Handbook written by Merrill Ivan Skolnik and published by McGraw-Hill Professional Publishing. This book was released on 1990 with total page 1228 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edition is the most comprehensive and informative available on radar systems and technology. Thoroughly revised and updated to reflect the advances made in radar over the past two decades. Charts/graphs.
