Modern Hf Signal Detection And Direction Finding
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Modern Hf Signal Detection And Direction Finding
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Author : Jay R. Sklar
language : en
Publisher: MIT Press
Release Date : 2018-09-25
Modern Hf Signal Detection And Direction Finding written by Jay R. Sklar and has been published by MIT Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-09-25 with Computers categories.
Detailed descriptions of detection, direction-finding, and signal-estimation methods, using consistent formalisms and notation, emphasizing HF antenna array sensing applications. Adaptive antenna array technology encompasses many powerful interference suppression approaches that exploit spatial differences among signals reaching a radio receiver system. Today, worldwide propagation phenomenology occurring in the High Frequency (HF) radio regime has made such interference common. In this book, Jay Sklar, a longtime researcher at MIT Lincoln Laboratory, presents detailed descriptions of detection, direction-finding, and signal-estimation methods applicable at HF, using consistent formalisms and notation. Modern electronic system technology has made many of these techniques affordable and practical; the goal of the book is to offer practicing engineers a comprehensive and self-contained reference that will encourage more widespread application of these approaches. The book is based on the author's thirty years of managing MIT Lincoln Laboratory work on the application of adaptive antenna array technologies to the sensing of HF communication signals. After an overview of HF propagation phenomenology, communication signal formats, and HF receiver architectural approaches, Sklar describes the HF propagation environment in more detail; introduces important modulation approaches and signaling protocols used at HF; discusses HF receiver system architectural features; and addresses signal processor architecture and its implementation. He then presents the technical foundation for the book: the vector model for a signal received at an adaptive array antenna. He follows this with discussions of actual signal processing techniques for detection and direction finding, including specific direction-finding algorithms; geolocation techniques; and signal estimation.
Modern Hf Signal Detection And Direction Finding
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Author : Jay R. Sklar
language : en
Publisher: MIT Press
Release Date : 2018-09-25
Modern Hf Signal Detection And Direction Finding written by Jay R. Sklar and has been published by MIT Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-09-25 with Computers categories.
Detailed descriptions of detection, direction-finding, and signal-estimation methods, using consistent formalisms and notation, emphasizing HF antenna array sensing applications. Adaptive antenna array technology encompasses many powerful interference suppression approaches that exploit spatial differences among signals reaching a radio receiver system. Today, worldwide propagation phenomenology occurring in the High Frequency (HF) radio regime has made such interference common. In this book, Jay Sklar, a longtime researcher at MIT Lincoln Laboratory, presents detailed descriptions of detection, direction-finding, and signal-estimation methods applicable at HF, using consistent formalisms and notation. Modern electronic system technology has made many of these techniques affordable and practical; the goal of the book is to offer practicing engineers a comprehensive and self-contained reference that will encourage more widespread application of these approaches. The book is based on the author's thirty years of managing MIT Lincoln Laboratory work on the application of adaptive antenna array technologies to the sensing of HF communication signals. After an overview of HF propagation phenomenology, communication signal formats, and HF receiver architectural approaches, Sklar describes the HF propagation environment in more detail; introduces important modulation approaches and signaling protocols used at HF; discusses HF receiver system architectural features; and addresses signal processor architecture and its implementation. He then presents the technical foundation for the book: the vector model for a signal received at an adaptive array antenna. He follows this with discussions of actual signal processing techniques for detection and direction finding, including specific direction-finding algorithms; geolocation techniques; and signal estimation.
Perspectives In Antenna Technology
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Author : Jeffrey S. Herd
language : en
Publisher: MIT Press
Release Date : 2025-03-11
Perspectives In Antenna Technology written by Jeffrey S. Herd and has been published by MIT Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-03-11 with Computers categories.
The definitive volume of recent innovations in antenna technology developed for a wide variety of system applications at MIT Lincoln Laboratory. Antenna technology plays a key role in enabling next-generation sensing and communications for ground-based, airborne, and spaceborne systems across a wide spectrum of frequencies and applications. Advances in RF microelectronics, commercial high-volume manufacturing and packaging, high-fidelity modeling and simulation tools, and affordable high-speed digital signal processing offer new options for next-generation antenna systems. Perspectives in Antenna Technology, by Jeffrey S. Herd, Alan J. Fenn, and M. David Conway, describes a variety of antenna research and development projects from MIT Lincoln Laboratory over the past fifteen years. In addition to highlighting current systems applications for the new antenna technologies, the book provides a modern perspective on the evolution of antenna technology at MIT Lincoln Laboratory. The contributors to this book are all from MIT Lincoln Laboratory. The developments covered include those aimed at reducing the cost of phased array antennas by leveraging high-volume printed circuit board manufacturing and highly integrated packaging techniques; novel solutions to enable ultra-lightweight deployable antennas for space and airborne applications; vector sensor arrays; two unique imaging radar systems, a video-rate microwave imaging system for person-borne concealed threat detection and a system capable of ultrawideband imaging of satellites; simultaneous transmit and receive (STAR) antennas; a variety of novel wideband array antennas, including dual-polarized stepped-notch arrays and coupled dipole arrays; and several types of custom millimeter wave (mmWave) antennas.
Artificial Intelligence
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Author : David R. Martinez
language : en
Publisher: MIT Press
Release Date : 2024-06-11
Artificial Intelligence written by David R. Martinez and has been published by MIT Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-06-11 with Computers categories.
The first text to take a systems engineering approach to artificial intelligence (AI), from architecture principles to the development and deployment of AI capabilities. Most books on artificial intelligence (AI) focus on a single functional building block, such as machine learning or human-machine teaming. Artificial Intelligence takes a more holistic approach, addressing AI from the view of systems engineering. The book centers on the people-process-technology triad that is critical to successful development of AI products and services. Development starts with an AI design, based on the AI system architecture, and culminates with successful deployment of the AI capabilities. Directed toward AI developers and operational users, this accessibly written volume of the MIT Lincoln Laboratory Series can also serve as a text for undergraduate seniors and graduate-level students and as a reference book. Key features: In-depth look at modern computing technologies Systems engineering description and means to successfully undertake an AI product or service development through deployment Existing methods for applying machine learning operations (MLOps) AI system architecture including a description of each of the AI pipeline building blocks Challenges and approaches to attend to responsible AI in practice Tools to develop a strategic roadmap and techniques to foster an innovative team environment Multiple use cases that stem from the authors’ MIT classes, as well as from AI practitioners, AI project managers, early-career AI team leaders, technical executives, and entrepreneurs Exercises and Jupyter notebook examples
Measurements Based Radar Signature Modeling
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Author : Joseph T. Mayhan
language : en
Publisher: MIT Press
Release Date : 2024-05-14
Measurements Based Radar Signature Modeling written by Joseph T. Mayhan and has been published by MIT Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-05-14 with Computers categories.
A high-level text that synthesizes diverse research areas for characterizing objects (targets) from radar data and establishes a novel analysis framework for a class of signal processing techniques useful for high-resolution radar signature modeling. The only text to integrate a diverse body of work on characterizing objects (targets) from radar data into a common analysis framework, this book brings together the results of research papers and technical reports providing improved resolution and precision in radar target signature modeling and target motion solutions. It offers comprehensive coverage related to basic radar concepts, signal representation, and radar measurements; the development of advanced analysis tools essential for high-resolution signature modeling; the development of novel wideband and narrowband radar imaging techniques; the application of 2D spectral estimation theory to wideband signal processing; ultra-wideband scattering phenomenology and sparse-band sensor data fusion; and the integration of field measurements into the radar signature modeling process. The analysis techniques developed in the text provide the framework for a novel approach, called measurements-based modeling (MBM), to model target signatures by incorporating measurement data into the signature model of the target. Extensive examples throughout compare the performance of the new techniques with that of conventional analysis techniques. The first systematic, comprehensive synthesis of wide-ranging research areas for characterizing targets from radar data A deeply researched, lucid presentation enriched by extensive illustrations and examples An essential reference for experts in radar and signal processing, professional engineers in related fields, and graduate students
One Hundred Patents That Shaped The Modern World
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Author : David Segal
language : en
Publisher: Oxford University Press
Release Date : 2019-02-07
One Hundred Patents That Shaped The Modern World written by David Segal and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-02-07 with Technology & Engineering categories.
What would our world today be like without inventions like tarmac, aspirin, liquid crystals, and barbed wire? This guide shows how patents and the inventions they describe have shaped the 21st century. It gives us insights into the inventions, big and small, that have had huge impacts, many unexpected, on multiple spheres of our lives, from popular culture and entertainment, to global health, to transportation, to the waging of war. It features patent documents that date from the mid-19th century to the present. Patent documents describe inventions and represent an accurate and rich source of information about the history and current state of modern technology, as patents are examined and their accuracy can be challenged. The subject matter covers many technical areas. Patents discussed include, for example, Morse code, the diode, triode, transistors, television, frozen foods, ring-pull for soft drink cans, board games such as Monopoly, gene editing, metamaterials, MRI, computerised tomography, insulin, and monoclonal antibodies such as Herceptin. The text is illustrated with drawings adapted from the original patent documents. Patent numbers are included to allow interested readers to trace the documents. Inventions described in the patents are placed in historical perspective. For example, the book discusses the role of the cavity magnetron and radar in World War II, and the influence of the diode on the development of broadcasting at the beginning of the 20th century.
Signals
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Author :
language : en
Publisher:
Release Date : 1966
Signals written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with Communications, Military categories.
Classical And Modern Direction Of Arrival Estimation
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Author : T. Engin Tuncer
language : en
Publisher: Academic Press
Release Date : 2009-07-10
Classical And Modern Direction Of Arrival Estimation written by T. Engin Tuncer and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-07-10 with Technology & Engineering categories.
Classical and Modern Direction of Arrival Estimation contains both theory and practice of direction finding by the leading researchers in the field. This unique blend of techniques used in commercial DF systems and state-of-the art super-resolution methods is a valuable source of information for both practicing engineers and researchers. Key topics covered are: - Classical methods of direction finding - Practical DF methods used in commercial systems - Calibration in antenna arrays - Array mapping, fast algorithms and wideband processing - Spatial time-frequency distributions for DOA estimation - DOA estimation in threshold region - Higher order statistics for DOA estimation - Localization in sensor networks and direct position estimation - Brings together in one book classical and modern DOA techniques, showing the connections between them - Contains contributions from the leading people in the field - Gives a concise and easy- to- read introduction to the classical techniques - Evaluates the strengths and weaknesses of key super-resolution techniques - Includes applications to sensor networks
Microwave Passive Direction Finding
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Author : Stephen E. Lipsky
language : en
Publisher: SciTech Publishing
Release Date : 2004
Microwave Passive Direction Finding written by Stephen E. Lipsky and has been published by SciTech Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Technology & Engineering categories.
Microwave Passive Direction Finding unifies direction finding (DF) theory and brings together into a single source wide-ranging information on the technology of measuring the direction-of-arrival of microwave signals. Throughout the material, there is authoritative information useful to preparing a detailed technical proposal for new business that has been compiled from many years of defense industry presentations, reports, and systems development. Diagrams and photographs of state-of-the-art equipment depict the methods discussed, and equations and charts facilitate a "hands-on" approach to calculating system performance. The book also presents rarely published systems concepts, such as digital preprocessing, supercommutation, and wide RF bandwidth signal detection methods. Specific sections cover evolution and use of monopulse passive DF receiver theory, design of antenna elements for conformal DF coverage, receiver configurations, DF antenna arrays, interferometer DF techniques, computation methods for signal detection, probability of detection, accuracy of DF systems, and signal processing and display methods. More than any book on this technology, Microwave Passive Direction Finding anticipates the questions that arise in the DF design process. The chapters are organized to stand alone, making the book useful as a text/reference for the practicing engineer. At the same time, the material is organized inductively, so that it can be used for a college or seminar text.
Army
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Author :
language : en
Publisher:
Release Date : 1993
Army written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Military art and science categories.