Описание: This work systematically investigates the use of high-quality (high-Q) resonators as coding particles of chipless cooperative radar targets to overcome clutter. Due to their high-Q, the backscattered signature can outlast clutter and permit reliable readouts in dynamic environments as well as its integration in other types of cooperative radar targets for joint identification, sensing, and ranging capabilities. This is first demonstrated with temperature and pressure sensors in the microwave frequency range, which include the characterization of a novel temperature sensor for machine tool monitoring up to 400 °C, as well as inside the machine. Afterwards, the thesis proposes and demonstrates the use of metallic as well as dielectric Electromagnetic BandGap (EBG) structures to enable the realization and to enhance the capabilities at mm-Wave and THz frequencies compared to microwave frequencies with compact monolithic multi-resonator cooperative radar targets. Furthermore, this work studies the integration of resonators as coding particles inside larger retroreflective configurations such as Luneburg lenses to achieve long-range and high accuracy for localization and, at the same time, frequency coding robust against clutter for identification. Finally, the successful readout of these cooperative radar targets is demonstrated in cluttered dynamic environments, as well as with readers based on Frequency-Modulated Continuous-Wave (FMCW) radars.
Автор: Sokolnikov Andre U Название: THz Identification for Defense and Security Purposes ISBN: 9814452386 ISBN-13(EAN): 9789814452380 Издательство: World Scientific Publishing Рейтинг: Цена: 12830.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: The principal aim of this book is to provide the reader with the understanding of the possibilities and features of THz identification as opposed to more traditional techniques such as X-rays, microwaves, etc. by elucidating and illustrating the principles of THz identification and its applications in a systematical way. Its scope includes a description of the physical principles of THz generation, transmission and detection, as well as of the applications of THz identification.The inherent advantages and potential benefits of the terahertz (THz) phenomenon, potential that encompasses various aspects such as THz sensing, imaging and material properties investigation with THz radiation for Defense (military) and security applications serve as an important stimulus for the interest in emerging THz science and technology, in particular, the very rapid growth of this new field.This text presents some of the leading fundamental research efforts towards the realization of practical THz devices applications for military and security applications. Relevant chapters contain fundamentals and/or measurements of THz radiation in solid-state materials such as high explosives (e.g. HMX, PETN, RDX, etc.), biological tissues and organic-semiconductor nanostructures. Individual chapters also address the present capabilities of THz equipment for the effective utilization of screening packages and personnel. This book contains descriptions and analyses of the most innovative research in the field; the presented material introduces novel devices and/or concepts that enhance THz source and detector performance -- enabling completely new types of sensor performance at THz frequency (e.g. detection at molecular and nanoscale levels), and defining innovative sensing modalities (e.g. remote object and personnel identification) for defense and security.
Описание: The book discusses different aspects of these chipless-RFID systems, including tag and reader design, strategies to enhance the data density and capacity, tag programming and erasing, tag implementation in plastic and paper substrates, and synchronous tag reading, among others.
Автор: Martнn Ferran, Herrojo Cristian, Mata-Contreras Javier Название: Time-Domain Signature Barcodes for Chipless-Rfid and Sensing Applications ISBN: 3030397254 ISBN-13(EAN): 9783030397258 Издательство: Springer Рейтинг: Цена: 19564.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: The book discusses different aspects of these chipless-RFID systems, including tag and reader design, strategies to enhance the data density and capacity, tag programming and erasing, tag implementation in plastic and paper substrates, and synchronous tag reading, among others.
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