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The IET Digital Library holds more than 190,000 technical papers from 1994 onwards for all IET journals, magazines, books, conference publications and seminar digests. Highly cited journals such as Electronics Letters are available alongside 24 research journal titles, The Journal of Engineering, the IET's new open access journal, Micro & Nano Letters, the IET's online only journal, the IET's member magazine Engineering & Technology, plus seminar digests and conference publications. Find out more...

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image of Design and Development of Multi-Lane Smart Electromechanical Actuators
  • Design and Development of Multi-Lane Smart Electromechanical Actuators
  • The unavoidable element in the development of flight control systems (to date) has been in hydraulic actuators. This has been the case primarily because of their proven reliability and the lack of alternative technologies. However, the technology to build electromechanically actuated primary flight control systems is now available, which may mark the end of the hydraulic actuation systems - an important step for the development of the future 'all-electric' aircraft. Design and Development of Multi-Lane Smart Electromechanical Actuators describes design concepts in electromechanical actuators by considering an actuator that has the capability to drive the aerodynamic and inertial loads of an aileron control surface similar to that of the Sea Harrier. It provides the necessary theoretical background to design smart multi-lane electromechanical actuation systems, and provides a general methodology that engineers (electrical, mechanical, mechatronic, aerospace or chemical) will find useful.

image of Modelling Control Systems Using IEC 61499
  • Modelling Control Systems Using IEC 61499
  • IEC 61499 is a standard for modelling distributed control systems for use in industrial automation, and is already having an impact on the design and implementation of industrial control systems that involve the integration of programmable logic controllers, intelligent devices and sensors. Modelling Control Systems Using IEC 61499. 2nd Edition provides a concise and yet thorough introduction to the main concepts and models defined in the standard. Topics covered include defining applications, systems, distributing applications on the system's devices, function blocks, structuring applications, service interface function blocks, event function blocks, and examples of industrial applications. This second edition has been significantly updated to reflect the current second release of IEC 61499, including changes in the function block model, its execution, and the newly standardized XML exchange format for model artefacts, and to reflect lessons learned from the author's teaching of IEC 61499 over the last ten years. This book will be of interest to research-led control and process engineers and students working in fields that require complex control systems using networked based distributed control.

image of Sevick's Transmission Line Transformers: Theory and Practice
  • Sevick's Transmission Line Transformers: Theory and Practice
  • The long awaited revision of the classic book Transmission Line Transformers, by Jerry Sevick, is now in its fifth edition and has been updated and reorganised by Raymond Mack to provide communication engineers with a clear technical presentation of both the theory and practical applications of the transmission of radio communication. Sevick's Transmission Line Transformers: Theory and Practice, 5th Edition reviews the underlying principles that promote a better understanding of transmission line transformers. Ideal for academics and practicing engineers, this edition is divided into two clear parts for easy reference. Part one is a review of the theory and new concepts, including a discussion on the magnetic properties that affect the core of a transmission line transformer. Part two essentially focuses on the 'practice' element of the book title. This section has been updated to reflect the significant changes in component suppliers over the 30 years since the first edition of the book. Highlights of this title include the coverage of substantial background theory, recent work on fractional ratio transformers and high power Balun designs, and provides updated sources for transformer materials to reflect mergers, sales, and business failures over the past 20 years. There is also expanded coverage of commercial sources of low impedance coaxial cable; expanded construction hints for purpose built rectangular parallel transmission lines; plus an updated test equipment chapter to reflect modern computer based experimenter grade test equipment sources. Ray has leveraged his experience with ferrite materials for switching power to explain the performance characteristics of the ferrite materials used for RF power transmission line transformers.

image of Radar Micro-Doppler Signatures: Processing and Applications
  • Radar Micro-Doppler Signatures: Processing and Applications
  • The micro-Doppler effect appears as Doppler frequency modulations in coherent laser or microwave radar systems induced by mechanical vibrations or rotations of a target or any part on the target. These Doppler modulations become a distinctive signature of a target that incorporates vibrating or rotating structures, and provides evidence of the identity of the target with movement. This book concentrates on the processing and application of radar micro-Doppler signatures in real world situations, providing readers with a working knowledge on various applications of radar micro-Doppler signatures such as detection, tracking and discrimination of vehicles and dismounts, identifying human movement based on radar micro-Doppler signatures, detection and tracking small boats in sea, detection and discrimination complex motion of missile warheads, discrimination of quadrupedal animals, and detection and tracking of flying birds. Topics covered include bistatic/multistatic micro-Doppler signatures, decomposition of micro-Doppler signatures, through-wall radar micro-Doppler signatures and ultrasound micro-Doppler signature studies. Radar Micro-Doppler Signatures: Processing and applications will be of interest to R&D researchers and engineers in government research centers, industries, and universities around the world who work on radar imaging and signal analysis, target feature extraction, and non-cooperative target recognition. Supplementary files are available for this title. To request a copy of these, please email

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image of Wind Power Integration: Connection and System Operational Aspects
  • Wind Power Integration: Connection and System Operational Aspects
  • The rapid growth of wind generation has many implications for power system planning, operation and control. Network development, voltage rise, protection, monitoring and control are connection problems common to all wind power generation. Wind Power Integration: Connection and System Operational Aspects, 2nd Edition provides a wide-ranging discussion on all major aspects of wind power integration into electricity supply systems. Topics covered include: the development of wind power technology and its world-wide deployment; a primer in electric power engineering for non-electrical engineers (- which system delivers significant wind energy to consumers at least cost?); wind power technology and the interaction of various wind turbine generator types with the utility network; utility networks, and how they may be developed to accept significant wind power; how operational practice can be modified to take account of a variable power source with limited scope for control; wind power forecasting; the challenges faced by wind energy in modern electricity markets. New discussions have been added to describe developments in wind turbine generator technology and control, the network integration of wind power, innovative ways to integrate wind power when its generation potential exceeds 50% of demand, case studies on how forecasting errors have affected system operation, and an update on how the wind energy sector has fared in the marketplace. Wind Power Integration: Connection and System Operational Aspects, 2nd Edition will appeal to engineers from various disciplines looking for an overview of a technology that is providing a major impetus for sustainable electricity supply in the twenty-first century.

image of Economic Evaluation of Projects in the Electricity Supply Industry
  • Economic Evaluation of Projects in the Electricity Supply Industry
  • In the highly capital-intensive electricity supply industry, it is essential that both engineers and managers understand the methodologies of project evaluation in order to comprehend and analyse investment proposals and decisions. This updated and expanded edition of Economic Evaluation of Projects in the Electricity Supply Industry takes a broad introductory approach, covering planning and investment, financial analysis and evaluation, risk management, electricity trading, and strategies, technologies, national requirements and global agreements for electricity generation in a carbon-constrained world. Developments covered by this new edition include the changing mix of fuels in the power generation sector, greater involvement of the private sector in power generation investments through independent power producers, the important role of regulations, the growing interest in clean electricity generation, the economics of investing in renewables, the introduction of smart grids and intelligent meters and networks, and cyber security. Economic Evaluation of Projects in the Electricity Supply Industry, 3rd Edition is essential reading for academic and industrial engineers and economists concerned with energy supply, students of energy economics and planning, industry planners and project managers, and government and regulatory officials.

image of Angle-of-Arrival Estimation Using Radar Interferometry: Methods and Applications
  • Angle-of-Arrival Estimation Using Radar Interferometry: Methods and Applications
  • Radar interferometers provide a cost-effective radar architecture to achieve enhanced angle accuracy for enhanced target tracking. Presenting a comprehensive understanding of various radar interferometer architectures, Angle of Arrival Estimation Using Radar Interferometry aims to quantify interferometer angle estimation accuracy by developing a general understanding of various radar interferometer architectures and presenting a comprehensive understanding of the effects of radar-based measurement errors on angle-of-arrival estimation. The interferometer architectures described include a basic digital interferometer, a monopulse interferometer, an orthogonal interferometer and signal processing algorithms. By exploring interferometry and beyond, this book offers a unique perspective and an in depth look at the derivation of angle error equations for a radar interferometer as affected not only by additive noise but by other error effects such as multipath, glint, and spectral distortion. As such this book is primarily directed toward tracking radars but will also discuss imaging applications as well.

image of Driver Adaptation to Information and Assistance Systems
  • Driver Adaptation to Information and Assistance Systems
  • Driver information and assistance systems have emerged as an integral part of modern road vehicles in order to support the driver while driving. They make use of the newest information technologies in order to enhance driver awareness, safety and comfort, and thereby avoiding driver errors and accidents. Driver Adaptation to Information and Assistance Systems brings together recent work by the Marie-Curie Initial Training Network ADAPTATION. The project has studied drivers' behavioural adaptation to these new technologies from an integrative perspective working under a joint conceptual theoretical framework of behavioural adaptation that can be used to generate research hypotheses about how drivers will adapt to information and assistance systems and to derive guidelines for the design and deployment of such systems. The book aims to provide the reader with a better understanding of drivers' adaptation processes over time in response to information and assistance system use at different levels (energetic, cognitive and motivational levels); an appreciation of the impact of specificities of drivers population on technology use and skill acquisition; insights on the effects of system functionality, design and reliability as important system characteristics influencing drivers' adaptation; and recommendations on research methods and appropriate tools to investigate adaptation processes.

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  • New Editors-in-Chief appointed for IET Computers & Digital Techniques
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  • To celebrate fifty years of publication, view selected papers from the last five decades for FREE. Find out more...
  • Now available -  the new IET 2014 Publishing Catalogues, which feature the range of IET Books and IET Journals available this year. Find out more…

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