Hardware Architectures For Compact Microwave And Millimeter Wave Cameras
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Hardware Architectures For Compact Microwave And Millimeter Wave Cameras
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Author : Matthew Jared Horst
language : en
Publisher:
Release Date : 2019
Hardware Architectures For Compact Microwave And Millimeter Wave Cameras written by Matthew Jared Horst and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.
"Millimeter wave SAR imaging has shown promise as an inspection tool for human skin for characterizing burns and skin cancers. However, the current state-of-the-art in microwave camera technology is not yet suited for developing a millimeter wave camera for human skin inspection. Consequently, the objective of this dissertation has been to build the necessary foundation of research to achieve such a millimeter wave camera. First, frequency uncertainty in signals generated by a practical microwave source, which is prone to drift in output frequency, was studied to determine its effect on SAR-generated images. A direct relationship was found between the level of image distortions caused by frequency uncertainty and the product of frequency uncertainty and distance between the imaging measurement grid and sample under test. The second investigation involved the development of a millimeter wave imaging system that forms the basic building block for a millimeter wave camera. The imaging system, composed of two system-on-chip transmitters and receivers and an antipodal Vivaldi-style antenna, operated in the 58-64 GHz frequency range and employed the [omega]-k SAR algorithm. Imaging tests on burnt pigskin showed its potential for imaging and characterizing flaws in skin. The final investigation involved the development of a new microwave imaging methodology, named Chaotic Excitation Synthetic Aperture Radar (CESAR), for designing microwave and millimeter wave cameras at a fraction of the size and hardware complexity of previous systems. CESAR is based on transmitting and receiving from all antennas in a planar array simultaneously. A small microwave camera operating in the 23-25 GHz frequency was designed and fabricated based on CESAR. Imaging results with the camera showed it was capable of basic feature detection for various applications"--Abstract, page iv.
Microwave Journal
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Author :
language : en
Publisher:
Release Date : 2005
Microwave Journal written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Microwaves categories.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1994
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 1994 with Aeronautics categories.
Nasa Tech Briefs
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Author :
language : en
Publisher:
Release Date : 1992
Nasa Tech Briefs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Technology categories.
Millimeter Wave Radar
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Author : Stephen L. Johnston
language : en
Publisher:
Release Date : 1980
Millimeter Wave Radar written by Stephen L. Johnston and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Technology & Engineering categories.
Stepped Frequency Radar Sensors
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Author : Cam Nguyen
language : en
Publisher: Springer
Release Date : 2016-03-29
Stepped Frequency Radar Sensors written by Cam Nguyen and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-03-29 with Technology & Engineering categories.
This book presents the theory, analysis and design of microwave stepped-frequency radar sensors. Stepped-frequency radar sensors are attractive for various sensing applications that require fine resolution. The book consists of five chapters. The first chapter describes the fundamentals of radar sensors including applications followed by a review of ultra-wideband pulsed, frequency-modulated continuous-wave (FMCW), and stepped-frequency radar sensors. The second chapter discusses a general analysis of radar sensors including wave propagation in media and scattering on targets, as well as the radar equation. The third chapter addresses the analysis of stepped-frequency radar sensors including their principles and design parameters. Chapter 4 presents the development of two stepped-frequency radar sensors at microwave and millimeter-wave frequencies based on microwave integrated circuits (MICs), microwave monolithic integrated circuits (MMICs) and printed-circuit antennas, and discusses their signal processing. Chapter 5 provides the electrical characterization and test results of the developed microwave and millimeter-wave stepped-frequency radar sensors. Finally, a summary and conclusion is provided.
Millimeter Wave Mmwave Communications
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Author : Manuel García Sanchez
language : en
Publisher: MDPI
Release Date : 2020-03-25
Millimeter Wave Mmwave Communications written by Manuel García Sanchez and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-03-25 with Technology & Engineering categories.
The millimeter-wave frequency band (30–300 GHz) is considered a potential candidate to host very high data rate communications. First used for high capacity radio links and then for broadband indoor wireless networks, the interest in this frequency band has increased as it is proposed to accommodate future 5G mobile communication systems. The large bandwidth available will enable a number of new uses for 5G. In addition, due to the large propagation attenuation, this frequency band may provide some additional advantages regarding frequency reuse and communication security. However, a number of issues have to be addressed to make mm-wave communications viable. This book collects a number of contributions that present solutions to these challenges.
Millimeter Wave Antennas Configurations And Applications
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Author : Jaco du Preez
language : en
Publisher: Springer
Release Date : 2016-06-20
Millimeter Wave Antennas Configurations And Applications written by Jaco du Preez and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-06-20 with Technology & Engineering categories.
This book comprehensively reviews the state of the art in millimeter-wave antennas, traces important recent developments and provides information on a wide range of antenna configurations and applications. While fundamental theoretical aspects are discussed whenever necessary, the book primarily focuses on design principles and concepts, manufacture, measurement techniques, and practical results. Each of the various antenna types scalable to millimeter-wave dimensions is considered individually, with coverage of leaky-wave and surface-wave antennas, printed antennas, integrated antennas, and reflector and lens systems. The final two chapters address the subject from a systems perspective, providing an overview of supporting circuitry and examining in detail diverse millimeter-wave applications, including high-speed wireless communications, radio astronomy, and radar. The vast amount of information now available on millimeter-wave systems can be daunting for researchers and designers entering the field. This book offers readers essential guidance, helping them to gain a thorough understanding based on the most recent research findings and serving as a sound basis for informed decision-making.
Optoelectronics For Low Intensity Conflicts And Homeland Security
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Author : Anil Maini
language : en
Publisher: Artech House
Release Date : 2018-11-30
Optoelectronics For Low Intensity Conflicts And Homeland Security written by Anil Maini and has been published by Artech House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-11-30 with Technology & Engineering categories.
This authoritative new resource provides an overview of the deployment of various devices in systems in actual field conditions and efficacy established in warfare. The book covers laser and optronic technologies that have evolved over the years to build practical devices and systems for use in Homeland Security and low-intensity conflict scenarios. Readers will be able to assess combat and battle-worthiness of various available devices and systems. This book covers state-of-the-art and emerging trends in various optoelectronics technologies having applications in Homeland Security. It provides information on operational aspects, deployment scenarios, and actual usage of laser and optoelectronics based technologies for low intensity conflicts, offering insight into the utility of each technology/device for a given operational requirement. This book evaluates the merits of various laser and optoelectronic sensor based technologies intended for low intensity conflict operations, including counter-insurgency and anti-terrorist operations. It is a useful reference for those specializing in defense electronics and optronics and professionals in the defence industry involved in operation and maintenance of laser based security equipment. Packed with tables, photographs, and a comprehensive list of references in every chapter, this is the only book that covers all topics related to Laser and Optoelectronics devices intended for low intensity conflict operations in a single volume.
Nasa Patent Abstracts Bibliography
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Author : United States. National Aeronautics and Space Administration. Scientific and Technical Information Program
language : en
Publisher:
Release Date : 1994
Nasa Patent Abstracts Bibliography written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Program and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Astronautics categories.