Antenna Array Processing in Wireless Communications and Radar Systems

Antenna Array Processing in Wireless Communications and Radar Systems
Author: Xiaotong Lin
Publisher:
Total Pages: 296
Release: 2000
Genre: Antenna arrays
ISBN:
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Antenna arrays have shown great promise for improving performance in wireless communication and radar systems. In this dissertation, new approaches and design algorithms are suggested for producing antenna array signal processing schemes that achieve improved performance. First, a modified space-time adaptive processing (STAP) scheme is proposed for airborne radar signal detection. A simple model for ground clutter is used to aid the estimation of the covariance matrix in a nonhomogeneous environment. The resulting algorithm provides good performance without much training data. Next, distributed detection of a known signal in t-distributed noise is studied for cases where the observations are correlated from sensor to sensor. A Gauss-Seidel algorithm which attempts to minimize the Bayes risk is used to obtain the optimum decision rules. It is shown that the optimum sensor decision rules can be predicted in a simple way based on the problem's parameters. Finally the exploitation of transmit diversity and receive diversity in wireless communications is considered by using space-time codes. Systematic code search procedures with low complexity are proposed for space-time codes employing multiple trellis coded modulation (MTCM). MTCM is shown to be necessary for achieving maximum transmit diversity gain when trellis codes with parallel paths are used. By properly labeling the trellis branches, it is demonstrated that the overall coding gain can be made larger than that achieved by conventional space-time codes with the same throughput and the same number of states. A new family of space-time codes is proposed using a serial concatenation structure. An interleaver is embedded between the inner code and the outer code. Analysis shows that by using this structure, both diversity gain and interleaving gain can be achieved for system performance improvement.

Adaptive Antennas and Phased Arrays for Radar and Communications

Adaptive Antennas and Phased Arrays for Radar and Communications
Author: Alan J. Fenn
Publisher: Artech House
Total Pages: 410
Release: 2007-12-01
Genre: Technology & Engineering
ISBN: 1596932732
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Based on the author's extensive research at MIT Lincoln Laboratory, this authoritative resource offers an in-depth description of adaptive array design, emphasizing the RF characteristics, mutual coupling among elements, and field testing methods. It provides you with proven techniques for challenging projects involving radar, communication systems and antenna design. For the first time in any book, you find design guidance on specialized types of arrays, using monopole radiating elements, slotted cylinders and ultrawideband dipoles. Moreover, this unique book presents a focused near-field technique that quantifies the far-field performance of large aperture radar systems and communication systems. The book presents example prototype phased array antennas, including discussions on monopole phased arrays, finite and infinite array analyses, measurements for planar arrays of monopole elements. Further, you get a detailed explanation of focused near-field polarization characteristics of monopole arrays as related to adaptive array testing in the near field. From the fundamentals of adaptive antennas and degrees of freedom for multiple beam antennas and phased arrays… to a test bed monopole phased array and the planar near field testing technique… to arrays of horizontally polarized loop-fed slotted cylinder antennas and ultrawideband dipole arrays, this comprehensive book offers you invaluable, hands-on knowledge for your work in the field.

Smart Antennas

Smart Antennas
Author: Theodore S. Rappaport
Publisher: Institute of Electrical & Electronics Engineers(IEEE)
Total Pages: 568
Release: 1998
Genre: Technology & Engineering
ISBN:
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In this compendium, you will find some of the classical publications and most promising research papers which have and will continue to impact the emerging field of wireless adaptive arrays. The papers have been compiled based on graduate student research at the Mobile and Portable Radio Research Group (MPRG) at Virginia Tech. This book is a handy, single-source reference to assist graduate students, researchers, and practitioners involved with the design, development, and deployment of smart antenna technology.

Adaptive Array Systems

Adaptive Array Systems
Author: Ben Allen
Publisher: John Wiley & Sons
Total Pages: 290
Release: 2006-02-03
Genre: Technology & Engineering
ISBN: 0470861908
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In the last fifty years, extensive studies have been carried out worldwide in the field of adaptive array systems. However, far from being a mature technology with little research left to tackle, there is seemingly unlimited scope to develop the fundamental characteristics and applications of adaptive antennas for future 3G and 4G mobile communications systems, ultra wideband wireless and satellite and navigation systems, and this informative text shows you how! Provides an accessible resource on adaptive array fundamentals as well as coverage of adaptive algorithms and advanced topics Analyses the performance of various wideband beamforming techniques in wideband array processing Comprehensively covers implementation issues related to such elements as circular arrays, channel modelling and transmit beam forming, highlighting the challenges facing a designer during the development phase Supports practical implementation considerations with detailed case studies on wideband arrays, radar, sonar and biomedical imaging, terrestrial wireless systems and satellite communication systems Includes examples and problems throughout to aid understanding Companion website features Solutions Manual, Matlab Programs and Electronic versions of some figures Adaptive Array Systems is essential reading for senior undergraduate and postgraduate students and researchers in the field of adaptive array systems. It will also have instant appeal to engineers and designers in industry engaged in developing and deploying the technology. This volume will also be invaluable to those working in radar, sonar and bio-medical applications.

Adaptive Antenna Arrays

Adaptive Antenna Arrays
Author: Sathish Chandran
Publisher: Springer Science & Business Media
Total Pages: 662
Release: 2013-03-09
Genre: Technology & Engineering
ISBN: 3662055929
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This compilation of the works and insights of various key scientists and engineers in this area addresses the current and future trends of scenarios for employing adaptive antenna arrays in communication systems. Ideal as a quick reference for engineers, researchers, advanced undergraduate and postgraduate students.

Radar Array Processing

Radar Array Processing
Author: Simon Haykin
Publisher: Springer Science & Business Media
Total Pages: 326
Release: 2013-03-08
Genre: Technology & Engineering
ISBN: 3642773478
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Radar Array Processing presents modern techniques and methods for processingradar signals received by an array of antenna elements. With the recent rapid growth of the technology of hardware for digital signal processing, itis now possible to apply this to radar signals and thus to enlist the full power of sophisticated computational algorithms. Topics covered in detail here include: super-resolution methods of array signal processing as applied to radar, adaptive beam forming for radar, and radar imaging. This book will be of interest to researchers and studentsin the radar community and also in related fields such as sonar, seismology, acoustics and radio astronomy.

Antenna and Array Technologies for Future Wireless Ecosystems

Antenna and Array Technologies for Future Wireless Ecosystems
Author: Yingjie Jay Guo
Publisher: John Wiley & Sons
Total Pages: 795
Release: 2022-07-20
Genre: Technology & Engineering
ISBN: 1119813905
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ANTENNA AND ARRAY TECHNOLOGIES FOR FUTURE WIRELESS ECOSYSTEMS Discover a timely and accessible resource on the latest antenna research driving new developments in the field In Antenna and Array Technologies for Future Wireless Ecosystems, distinguished academics and authors Drs. Y. Jay Guo and Richard W. Ziolkowski deliver a cutting-edge resource for researchers, academics, students, and engineers who need the latest research findings on the newest challenges facing antenna designers who will be creating the technology that drives future 6G and beyond wireless systems and networks. This timely and impactful book offers the fundamental knowledge that will facilitate new research activities in the antennas and applied electromagnetics communities, and conveys innovative and practical solutions to many wireless industry problems. Its international cohort of leading authors delivers their findings on a variety of advanced topics in antenna and array research, including metasurface antennas; electrically small directive antennas; RF, millimeter-wave and THz antennas and arrays; atom-based sensors, and arrays of quantum emitters. The book also includes resources that cover the important topics: A thorough introduction to various intelligent and low-cost beam scanning, beamforming and beam-reconfigurable array technologies to support dynamic networking of future systems An exploration of advanced techniques for analyzing large arrays, as well as an examination of advanced antenna-in-package technologies for future mm-wave systems Discussions of the latest research on electrically small and extremely large hybrid antenna arrays, and photonic beamforming networks to address spectrum scarcity in future systems Low form-factor, low energy-consumption, and wireless power transfer antennas for the Internet of Things (IoT) This book is the companion of the Wiley book by the same authors, Advanced Antenna Array Engineering for 6G and Beyond Wireless Communications. Perfect for antenna engineers in academia and industry, Antenna and Array Technologies for Future Wireless Ecosystems will also be an essential resource in the libraries of senior undergraduate and graduate students studying antenna engineering applied electromagnetics and seeking a one-stop reference for state-of-the-art global antenna and antenna array research activities.

Compact Slot Array Antennas for Wireless Communications

Compact Slot Array Antennas for Wireless Communications
Author: Alan J. Sangster
Publisher: Springer
Total Pages: 350
Release: 2018-11-11
Genre: Technology & Engineering
ISBN: 3030017532
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This book describes and provides design guidelines for antennas that achieve compactness by using the slot radiator as the fundamental building block within a periodic array, rather than a phased array. It provides the basic electromagnetic tools required to design and analyse these novel antennas, with sample calculations where relevant. The book presents a focused introduction and valuable insights into the relevant antenna technology, together with an overview of the main directions in the evolving technology of compact planar arrays. While the book discusses the historical evolution of compact array antennas, its main focus is on summarising the extensive body of literature on compact antennas. With regard to the now ubiquitous slot radiator, it seeks to demonstrate how, despite significant antenna size reductions that at times even seem to defy the laws of physics, desirable radiation pattern properties can be preserved. This is supported by an examination of recent advances in frequency selective surfaces and in metamaterials, which can, if handled correctly, be used to facilitate physics-defying designs. The book offers a valuable source of information for communication systems and antenna design engineers, especially thanks to its overview of trends in compact planar arrays, yet will also be of interest to students and researchers, as it provides a focused introduction and insights into this highly relevant antenna technology.

Smart Antennas and Electromagnetic Signal Processing in Advanced Wireless Technology

Smart Antennas and Electromagnetic Signal Processing in Advanced Wireless Technology
Author: Paul R.P. Hoole
Publisher: CRC Press
Total Pages: 450
Release: 2022-09-01
Genre: Technology & Engineering
ISBN: 100079377X
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The book addresses the current demand for a scientific approach to advanced wireless technology and its future developments. It gives a clear presentation of both antennas and adaptive signal processing which is what makes antennas powerful, maneuverable and necessary for advanced wireless technology. The book presents electromagnetic signal processing techniques that both control the antenna beam and track the moving station, which is required for effective, fast, dynamic beamforming. The first part of the book presents a comprehensive description and analysis of basic antenna theory, starting from short dipole antennas to array antennas. This section also includes important concepts related to antenna parameters, electromagnetic wave propagation, the Friis equation, the radar equation and wave reflection and transmission through media. The second part of the book focuses on smart antennas, commencing from a look at the traditional approach to beamforming before getting into the details of smart antennas. Complete derivation and description of the techniques for electromagnetic field signal processing techniques for adaptive beamforming are also presented. Artificial Intelligence (AI) driven beamforming is presented using computationally fast and low-memory demanding technique for AI beamforming is presented with the different excitation functions available. A novel method for fast, low memory and accurate, maneuverable single beam generation is presented, as well as other methods for beamforming with fewer elements along with a simple method for tracking the mobile antenna and station. In this section, for completeness, the use of antenna signal processing for synthetic aperture techniques for imaging is also presented, specifically the Inverse Synthetic Aperture Imaging technique. The third part of the book presents technological aspects of advanced wireless technology, including the 5G wireless system and the various devices needed to construct it. While the books’ main emphasis is theoretical understanding and design, it includes applications, and legal matters are also presented.

Antenna Arrays

Antenna Arrays
Author: Randy L. Haupt
Publisher: John Wiley & Sons
Total Pages: 534
Release: 2010-09-09
Genre: Technology & Engineering
ISBN: 9780470937433
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A comprehensive tutorial on the design and practical applications of antenna arrays An antenna array is an assembly of antenna elements that maximizes a received or transmitted signal in a desired direction. This practical book covers a wide range of antenna array topics that are becoming increasingly important in wireless applications, with emphasis on array design, applications, and computer modeling. Each chapter in Antenna Arrays builds upon the previous chapter, progressively addressing more difficult material. Beginning with basic electromagnetics/antennas/antenna systems information, the book then deals with the analysis and synthesis of arrays of point sources and their associated array factors. It presents a sampling of different antenna elements that replace these point sources, then presents element configurations that do not have to lie along a line or in a plane. The complex and difficult-to-predict interactions of elements and electromagnetic waves are introduced, along with computer modeling and experiments that are necessary for predicting the performance of arrays where mutual coupling is important. Then, various approaches to getting signals to and from the array elements to a computer where the signal detection takes place are explored, as are the numerical techniques behind smart antennas. The book emphasizes the computational methods used in the design and analysis of array antennas. Also featured are signal processing and numerical modeling algorithms, as well as pictures of antenna arrays and components provided by industry and government sources, with explanations of how they operate. Fully course-tested, Antenna Arrays serves as a complete text in phased array design and theory for advanced undergraduate- and graduate-level courses in electronics and communications, as well as a reference for practicing engineers and scientists in wireless communications, radar, and remote sensing.