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Narrowband Direction of Arrival Estimation for Antenna Arrays

Jeffrey Foutz,Andreas Spanias,Mahesh Banavar

Author : Jeffrey Foutz,Andreas Spanias,Mahesh Banavar
Publisher : Morgan & Claypool Publishers
Page : 82 pages
File Size : 54,8 Mb
Release : 2008-10-08
Category : Technology & Engineering
ISBN : 9781598296518

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Narrowband Direction of Arrival Estimation for Antenna Arrays by Jeffrey Foutz,Andreas Spanias,Mahesh Banavar Pdf

This book provides an introduction to narrowband array signal processing, classical and subspace-based direction of arrival (DOA) estimation with an extensive discussion on adaptive direction of arrival algorithms. The book begins with a presentation of the basic theory, equations, and data models of narrowband arrays. It then discusses basic beamforming methods and describes how they relate to DOA estimation. Several of the most common classical and subspace-based direction of arrival methods are discussed. The book concludes with an introduction to subspace tracking and shows how subspace tracking algorithms can be used to form an adaptive DOA estimator. Simulation software and additional bibliography are given at the end of the book. Table of Contents: Introduction / Background on Array Processing / Nonadaptive Direction of Arrival Estimation / Adaptive Direction of Arrival Estimation / Appendix

Narrowband Direction of Arrival Estimation for Antenna Arrays

Jeffrey Foutz,Andreas Spanias,Mahesh Banavar

Author : Jeffrey Foutz,Andreas Spanias,Mahesh Banavar
Publisher : Springer Nature
Page : 75 pages
File Size : 53,6 Mb
Release : 2022-05-31
Category : Technology & Engineering
ISBN : 9783031015373

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Narrowband Direction of Arrival Estimation for Antenna Arrays by Jeffrey Foutz,Andreas Spanias,Mahesh Banavar Pdf

This book provides an introduction to narrowband array signal processing, classical and subspace-based direction of arrival (DOA) estimation with an extensive discussion on adaptive direction of arrival algorithms. The book begins with a presentation of the basic theory, equations, and data models of narrowband arrays. It then discusses basic beamforming methods and describes how they relate to DOA estimation. Several of the most common classical and subspace-based direction of arrival methods are discussed. The book concludes with an introduction to subspace tracking and shows how subspace tracking algorithms can be used to form an adaptive DOA estimator. Simulation software and additional bibliography are given at the end of the book. Table of Contents: Introduction / Background on Array Processing / Nonadaptive Direction of Arrival Estimation / Adaptive Direction of Arrival Estimation / Appendix

Classical and Modern Direction-of-Arrival Estimation

T. Engin Tuncer,Benjamin Friedlander

Author : T. Engin Tuncer,Benjamin Friedlander
Publisher : Academic Press
Page : 456 pages
File Size : 53,6 Mb
Release : 2009-07-10
Category : Technology & Engineering
ISBN : 9780080923079

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Classical and Modern Direction-of-Arrival Estimation by T. Engin Tuncer,Benjamin Friedlander Pdf

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

Introduction to Direction-of-Arrival Estimation

Zhizhang Chen,Gopal K. Gokeda,Yiqiang Yu

Author : Zhizhang Chen,Gopal K. Gokeda,Yiqiang Yu
Publisher : Artech House
Page : 195 pages
File Size : 47,9 Mb
Release : 2010
Category : Electrical engineering
ISBN : 9781596930902

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Introduction to Direction-of-Arrival Estimation by Zhizhang Chen,Gopal K. Gokeda,Yiqiang Yu Pdf

Direction-of-Arrival (DOA) estimation concerns the estimation of direction finding signals in the form of electromagnetic or acoustic waves, impinging on a sensor or antenna array. DOA estimation is used for locating and tracking signal sources in both civilian and military applications. This authoritative volume provides an overview and performance analysis of the basic DOA algorithms, including comparisons between the various types.The book offers you a detailed understanding of the arrays pertinent to DOA finding, and presents a detailed illustration of the ESPRIT-based DOA algorithms complete with their performance assessments. From antennas and array receiving systems, to advanced topics on DOA estimation, this book serves as a one-stop resource for professionals and students. Nearly 100 illustrations and more than 281 equations support key topics throughout.

Antenna Arrays and Beam-formation

Modar Shbat

Author : Modar Shbat
Publisher : BoD – Books on Demand
Page : 111 pages
File Size : 52,8 Mb
Release : 2017-05-10
Category : Technology & Engineering
ISBN : 9789535131458

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Antenna Arrays and Beam-formation by Modar Shbat Pdf

Spatial processing and smart antenna beam formation are considered as completely essential approaches to be employed for forthcoming progress in the standards and implementation of the wireless communication systems. The book aims, besides introducing up-to-date contributions that are not readily available in the related literature, to present and demonstrate the recent research ideas in the field of antenna array design and beam-forming algorithms in a synthetic, coherent, and unified manner for the interested researchers. The presented topics range from relatively straightforward mathematical analysis and derivations to simulation and empirical results. The book is designed to serve as an informative reference for the researcher involved in the analysis of the spatial signal processing techniques for smart antenna systems. The book will help the readers, in particular wireless communication researchers, to have wider futuristic and innovative visions for the advances in the field.

Machine Learning Applications in Electromagnetics and Antenna Array Processing

Manel Martínez-Ramón,Arjun Gupta,José Luis Rojo-Álvarez,Christos G. Christodoulou

Author : Manel Martínez-Ramón,Arjun Gupta,José Luis Rojo-Álvarez,Christos G. Christodoulou
Publisher : Artech House
Page : 436 pages
File Size : 46,5 Mb
Release : 2021-04-30
Category : Technology & Engineering
ISBN : 9781630817763

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Machine Learning Applications in Electromagnetics and Antenna Array Processing by Manel Martínez-Ramón,Arjun Gupta,José Luis Rojo-Álvarez,Christos G. Christodoulou Pdf

This practical resource provides an overview of machine learning (ML) approaches as applied to electromagnetics and antenna array processing. Detailed coverage of the main trends in ML, including uniform and random array processing (beamforming and detection of angle of arrival), antenna optimization, wave propagation, remote sensing, radar, and other aspects of electromagnetic design are explored. An introduction to machine learning principles and the most common machine learning architectures and algorithms used today in electromagnetics and other applications is presented, including basic neural networks, gaussian processes, support vector machines, kernel methods, deep learning, convolutional neural networks, and generative adversarial networks. Applications in electromagnetics and antenna array processing that are solved using machine learning are discussed, including antennas, remote sensing, and target classification.

Intelligent Computing & Optimization

Pandian Vasant,Gerhard-Wilhelm Weber,José Antonio Marmolejo-Saucedo,Elias Munapo,J. Joshua Thomas

Author : Pandian Vasant,Gerhard-Wilhelm Weber,José Antonio Marmolejo-Saucedo,Elias Munapo,J. Joshua Thomas
Publisher : Springer Nature
Page : 1215 pages
File Size : 55,5 Mb
Release : 2022-10-20
Category : Technology & Engineering
ISBN : 9783031199585

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Intelligent Computing & Optimization by Pandian Vasant,Gerhard-Wilhelm Weber,José Antonio Marmolejo-Saucedo,Elias Munapo,J. Joshua Thomas Pdf

This book of Springer Nature is another proof of Springer’s outstanding and greatness on the lively interface of Smart Computational Optimization, Green ICT, Smart Intelligence and Machine Learning! It is a Master Piece of what our community of academics and experts can provide when an Interconnected Approach of Joint, Mutual and Meta Learning is supported by Modern Operational Research and Experience of the World-Leader Springer Nature! The 5th edition of International Conference on Intelligent Computing and Optimization took place at October 27–28, 2022, via Zoom. Objective was to celebrate “Creativity with Compassion and Wisdom” with researchers, scholars, experts and investigators in Intelligent Computing and Optimization across the planet, to share knowledge, experience, innovation—a marvelous opportunity for discourse and mutuality by novel research, invention and creativity. This proceedings book of ICO’2022 is published by Springer Nature—Quality Label of wonderful.

Analysis and Design of Transmitarray Antennas

Ahmed H. Abdelrahman,Fan Yang,Atef Z. Elsherbeni,Payam Nayeri

Author : Ahmed H. Abdelrahman,Fan Yang,Atef Z. Elsherbeni,Payam Nayeri
Publisher : Springer Nature
Page : 151 pages
File Size : 42,8 Mb
Release : 2022-06-01
Category : Technology & Engineering
ISBN : 9783031015410

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Analysis and Design of Transmitarray Antennas by Ahmed H. Abdelrahman,Fan Yang,Atef Z. Elsherbeni,Payam Nayeri Pdf

In recent years, transmitarray antennas have attracted growing interest with many antenna researchers. Transmitarrays combines both optical and antenna array theory, leading to a low profile design with high gain, high radiation efficiency, and versatile radiation performance for many wireless communication systems. In this book, comprehensive analysis, new methodologies, and novel designs of transmitarray antennas are presented. Detailed analysis for the design of planar space-fed array antennas is presented. The basics of aperture field distribution and the analysis of the array elements are described. The radiation performances (directivity and gain) are discussed using array theory approach, and the impacts of element phase errors are demonstrated. The performance of transmitarray design using multilayer frequency selective surfaces (M-FSS) approach is carefully studied, and the transmission phase limit which are generally independent from the selection of a specific element shape is revealed. The maximum transmission phase range is determined based on the number of layers, substrate permittivity, and the separations between layers. In order to reduce the transmitarray design complexity and cost, three different methods have been investigated. As a result, one design is performed using quad-layer cross-slot elements with no dielectric material and another using triple-layer spiral dipole elements. Both designs were fabricated and tested at X-Band for deep space communications. Furthermore, the radiation pattern characteristics were studied under different feed polarization conditions and oblique angles of incident field from the feed. New design methodologies are proposed to improve the bandwidth of transmitarray antennas through the control of the transmission phase range of the elements. These design techniques are validated through the fabrication and testing of two quad-layer transmitarray antennas at Ku-band. A single-feed quad-beam transmitarray antenna with 50 degrees elevation separation between the beams is investigated, designed, fabricated, and tested at Ku-band. In summary, various challenges in the analysis and design of transmitarray antennas are addressed in this book. New methodologies to improve the bandwidth of transmitarray antennas have been demonstrated. Several prototypes have been fabricated and tested, demonstrating the desirable features and potential new applications of transmitarray antennas.

Adaptive Antenna Arrays

Sathish Chandran

Author : Sathish Chandran
Publisher : Springer Science & Business Media
Page : 662 pages
File Size : 50,7 Mb
Release : 2013-03-09
Category : Technology & Engineering
ISBN : 9783662055922

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Adaptive Antenna Arrays by Sathish Chandran Pdf

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.

Design of Reconfigurable Antennas Using Graph Models

Joseph Costantine,Youssef Tawk,Christos Christodoulou

Author : Joseph Costantine,Youssef Tawk,Christos Christodoulou
Publisher : Springer Nature
Page : 136 pages
File Size : 43,7 Mb
Release : 2022-06-01
Category : Technology & Engineering
ISBN : 9783031015403

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Design of Reconfigurable Antennas Using Graph Models by Joseph Costantine,Youssef Tawk,Christos Christodoulou Pdf

This lecture discusses the use of graph models to represent reconfigurable antennas. The rise of antennas that adapt to their environment and change their operation based on the user's request hasn't been met with clear design guidelines. There is a need to propose some rules for the optimization of any reconfigurable antenna design and performance. Since reconfigurable antennas are seen as a collection of self-organizing parts, graph models can be introduced to relate each possible topology to a corresponding electromagnetic performance in terms of achieving a characteristic frequency of operation, impedance, and polarization. These models help designers understand reconfigurable antenna structures and enhance their functionality since they transform antennas from bulky devices into mathematical and software accessible models. The use of graphs facilitates the software control and cognition ability of reconfigurable antennas while optimizing their performance. This lecture also discusses the reduction of redundancy, complexity and reliability of reconfigurable antennas and reconfigurable antenna arrays. The full analysis of these parameters allows a better reconfigurable antenna implementation in wireless and space communications platforms. The use of graph models to reduce the complexity while preserving the reliability of reconfigurable antennas allow a better incorporation in applications such as cognitive radio, MIMO, satellite communications, and personal communication systems. A swifter response time is achieved with less cost and losses. This lecture is written for individuals who wish to venture into the field of reconfigurable antennas, with a little prior experience in this area, and learn how graph rules and theory, mainly used in the field of computer science, networking, and control systems can be applied to electromagnetic structures. This lecture will walk the reader through a design and analysis process of reconfigurable antennas using graph models with a practical and theoretical outlook.

Generalized Transmission Line Method to Study the Far-zone Radiation of Antennas Under a Multilayer Structure

Zuan Hui Wu,Ahmed A. Kishk,Allen W. Glisson

Author : Zuan Hui Wu,Ahmed A. Kishk,Allen W. Glisson
Publisher : Springer Nature
Page : 86 pages
File Size : 42,7 Mb
Release : 2022-06-01
Category : Technology & Engineering
ISBN : 9783031015380

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Generalized Transmission Line Method to Study the Far-zone Radiation of Antennas Under a Multilayer Structure by Zuan Hui Wu,Ahmed A. Kishk,Allen W. Glisson Pdf

This book gives a step-by-step presentation of a generalized transmission line method to study the far-zone radiation of antennas under a multilayer structure. Normally, a radiation problem requires a full wave analysis which may be time consuming. The beauty of the generalized transmission line method is that it transforms the radiation problem for a specific type of structure, say the multilayer structure excited by an antenna, into a circuit problem that can be efficiently analyzed. Using the Reciprocity Theorem and far-field approximation, the method computes the far-zone radiation due to a Hertzian dipole within a multilayer structure by solving an equivalent transmission line circuit. Since an antenna can be modeled as a set of Hertzian dipoles, the method could be used to predict the far-zone radiation of an antenna under a multilayer structure. The analytical expression for the far-zone field is derived for a structure with or without a polarizer. The procedure of obtaining the Hertzian dipole model that is required by the generalized transmission line method is also described. Several examples are given to demonstrate the capabilities, accuracy, and efficiency of this method. Table of Contents: Antennas Under a Multilayer Dielectric Slab / Antennas Under a Polarized Multilayer Structure / Hertzian Dipole Model for an Antenna / Bibliography / Biography

Tunable Materials with Applications in Antennas and Microwaves

John N. Sahalos,George A. Kyriacou

Author : John N. Sahalos,George A. Kyriacou
Publisher : Springer Nature
Page : 228 pages
File Size : 48,5 Mb
Release : 2022-06-01
Category : Technology & Engineering
ISBN : 9783031015427

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Tunable Materials with Applications in Antennas and Microwaves by John N. Sahalos,George A. Kyriacou Pdf

Tunable Materials with Applications in Antennas and Microwaves is a stimulating topic in these modern times. With the explosion of the new generation of the wireless world, greater emphasis than ever before is being placed on the analysis and applications of modern materials. This book describes the characteristics of Ferrites and Ferroelectrics and introduces the reader to Multiferroics. Represents, in a simple manner, the solid state physics and explains the permittivity and permeability tensor characteristics for the tunable materials of infinite and finite dimensions. Gives the applications of tunable materials in resonators, filters, microstrips, striplines, antennas, phase shifters, capacitors, varactors, and frequency selective surfaces. Describes in detail the mathematical analysis for spin and magnetostatic waves for infinite medium, thin slab films, and finite circular discs. The analysis contains original work, which the reader may extend in the future. Provides multiferroics, which are ferrite and ferroelectric composites. Multiferroics are very promising tunable materials which are believed will offer many applications in the near future. Contains the planar transmission lines with analytic formulas for multilayer microstrips, transmission lines, and waveguides with isotropic as well as anisotropic dielectric and magnetic materials. Also, gives the formulas to analyze the layered category of transmission lines with multiferroics. This book is intended for antenna and microwave engineers as well as for graduate students of Materials Science and Engineering, Electrical & Computer Engineering, and Physics Departments.

Meta-Smith Charts and Their Applications

Danai Torrungrueng

Author : Danai Torrungrueng
Publisher : Springer Nature
Page : 98 pages
File Size : 48,8 Mb
Release : 2022-06-01
Category : Technology & Engineering
ISBN : 9783031015397

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Meta-Smith Charts and Their Applications by Danai Torrungrueng Pdf

This book presents the developments and potential applications of Meta-Smith charts, which can be applied to practical and useful transmission line problems (e.g., metamaterial transmission lines and nonreciprocal transmission lines). These problems are beyond the capability of the standard Smith chart to be applied effectively. As any RF engineer is aware, a key property of the Smith chart is the insight it provides, even in very complex design processes. Like the Smith chart, Meta-Smith charts provide a useful way of visualizing transmission line phenomena. They provide useful physical insight, and they can also assist in solving related problems effectively. This book can be used as a companion guide in studying Microwave Engineering for senior undergraduate students as well as for graduate students. It is also recommended for researchers in the RF community, especially those working with periodic transmission line structures and metamaterial transmission lines. Problems are also provided at the end of each chapter for readers to gain a better understanding of material presented in this book. Table of Contents: Essential Transmission Line Theory / Theory of CCITLs / Theory of BCITLs / Meta-Smith Charts for CCITLs and BCITLs / Applications of Meta-Smith Charts

Multipath Effects in GPS Receivers

Steven Miller,Xue Zhang,Andreas Spanias

Author : Steven Miller,Xue Zhang,Andreas Spanias
Publisher : Springer Nature
Page : 60 pages
File Size : 40,7 Mb
Release : 2022-05-31
Category : Technology & Engineering
ISBN : 9783031016820

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Multipath Effects in GPS Receivers by Steven Miller,Xue Zhang,Andreas Spanias Pdf

Autonomous vehicles use global navigation satellite systems (GNSS) to provide a position within a few centimeters of truth. Centimeter positioning requires accurate measurement of each satellite's direct path propagation time. Multipath corrupts the propagation time estimate by creating a time-varying bias. A GNSS receiver model is developed and the effects of multipath are investigated. MATLABtm code is provided to enable readers to run simple GNSS receiver simulations. More specifically, GNSS signal models are presented and multipath mitigation techniques are described for various multipath conditions. Appendices are included in the booklet to derive some of the basics on early minus late code synchronization methods. Details on the numerically controlled oscillator and its properties are also given in the appendix.

Node Localization in Wireless Sensor Networks

Xue Zhang,Cihan Tepedelenlioglu,Mahesh Banavar,Andreas Spanias

Author : Xue Zhang,Cihan Tepedelenlioglu,Mahesh Banavar,Andreas Spanias
Publisher : Springer Nature
Page : 58 pages
File Size : 53,9 Mb
Release : 2022-06-01
Category : Technology & Engineering
ISBN : 9783031016837

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Node Localization in Wireless Sensor Networks by Xue Zhang,Cihan Tepedelenlioglu,Mahesh Banavar,Andreas Spanias Pdf

In sensor network applications, measured data are often meaningful only when the location is accurately known. In this booklet, we study research problems associated with node localization in wireless sensor networks. We describe sensor network localization problems in terms of a detection and estimation framework and we emphasize specifically a cooperative process where sensors with known locations are used to localize nodes at unknown locations. In this class of problems, even if the location of a node is known, the wireless links and transmission modalities between two nodes may be unknown. In this case, sensor nodes are used to detect the location and estimate pertinent data transmission activities between nodes. In addition to the broader problem of sensor localization, this booklet studies also specific localization measurements such as time of arrival (TOA), received signal strength (RSS), and direction of arrival (DOA). The sequential localization algorithm, which uses a subset of sensor nodes to estimate nearby sensor nodes' locations is discussed in detail. Extensive bibliography is given for those readers who want to delve further into specific topics.

Narrowband Direction Of Arrival Estimation For Antenna Arrays

Narrowband Direction of Arrival Estimation for Antenna Arrays by Jeffrey Foutz,Andreas Spanias,Mahesh Banavar Pdf

Narrowband Direction of Arrival Estimation for Antenna Arrays by Jeffrey Foutz,Andreas Spanias,Mahesh Banavar Pdf

Classical and Modern Direction-of-Arrival Estimation by T. Engin Tuncer,Benjamin Friedlander Pdf

Introduction to Direction-of-Arrival Estimation by Zhizhang Chen,Gopal K. Gokeda,Yiqiang Yu Pdf

Antenna Arrays and Beam-formation by Modar Shbat Pdf

Machine Learning Applications in Electromagnetics and Antenna Array Processing by Manel Martínez-Ramón,Arjun Gupta,José Luis Rojo-Álvarez,Christos G. Christodoulou Pdf

Intelligent Computing & Optimization by Pandian Vasant,Gerhard-Wilhelm Weber,José Antonio Marmolejo-Saucedo,Elias Munapo,J. Joshua Thomas Pdf

Analysis and Design of Transmitarray Antennas by Ahmed H. Abdelrahman,Fan Yang,Atef Z. Elsherbeni,Payam Nayeri Pdf

Adaptive Antenna Arrays by Sathish Chandran Pdf

Design of Reconfigurable Antennas Using Graph Models by Joseph Costantine,Youssef Tawk,Christos Christodoulou Pdf

Generalized Transmission Line Method to Study the Far-zone Radiation of Antennas Under a Multilayer Structure by Zuan Hui Wu,Ahmed A. Kishk,Allen W. Glisson Pdf

Tunable Materials with Applications in Antennas and Microwaves by John N. Sahalos,George A. Kyriacou Pdf

Meta-Smith Charts and Their Applications by Danai Torrungrueng Pdf

Multipath Effects in GPS Receivers by Steven Miller,Xue Zhang,Andreas Spanias Pdf

Node Localization in Wireless Sensor Networks by Xue Zhang,Cihan Tepedelenlioglu,Mahesh Banavar,Andreas Spanias Pdf

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