2005

Microwave Receivers with Electronic Warfare Applications

Thu, 10 Sep 2020 12:44:12 GMT

This book is a treatise on EW receivers that is relevant to you if you are just looking for a top-level insight into EW receivers or need to know the intricate details of cause and effect behavior in EW receiver theory and design. The book begins with a general discussion of EW receivers in their functional context and then goes into just the right amount of detail about the theoretical characteristics common to all receiver designs. Examples of this include receiver design issues impacting probability of detection, false alarm rate, and dynamic range performance. Tsui then describes the important characteristics of key emitter parameters to be measured by an EW receiver. He goes on to systematically cover each of the types of EW receivers by dedicating a chapter to each in well-organized and exquisite detail.

Fabrication of GaAs Devices

Tue, 12 Jun 2018 00:45:49 GMT

This book provides fundamental and practical information on all aspects of GaAs processing and gives pragmatic advice on cleaning and passivation, wet and dry etching and photolithography. Other topics covered include device performance for HBTs (Heterojunction Bipolar Transistors) and FETs (Field Effect Transistors), how these relate to processing choices, and special processing issues such as wet oxidation, which are especially important in optoelectronic devices. This book is suitable for both new and practising engineers.

Electron-Gated Ion Channels

Tue, 12 Jun 2018 00:45:16 GMT

Understanding ion channel gating has been a goal of researchers since Hodgkin and Huxley's classic publication in 1952, but the gating mechanism has remained elusive. In this book it is shown how electrons can control gating. Introducing the electron as a gating agent requires amplification, but until now there has been no appropriate mechanism for amplification.

It was discovered that NH₃ groups, at the end of arginine and lysine side chains, act as amplifiers for electron tunneling. The amplification is about 25-fold, due to the inversion of NH₃. The inversion frequency for NH₃ attached to the side chain was calculated from an electron-gating model, calibrated to the Hodgkin-Huxley model. It was also determined experimentally in Blue Fluorescent Protein, using a new microwave spectroscopy technique developed specifically for this purpose. The inversion frequency of NH₃ in the gas phase occurs at about 24 GHz and is used by the ammonia clock and for amplification in the ammonia maser. This frequency, reduced by the attachment of NH₃ to the side chain, is the basis for amplification of electron tunneling at arginine and lysine sites. Detailed models for electron gating in sodium and potassium ion channels are described and an electron-gating model for calcium oscillators is presented.

The book is a documentation of the author's research and is oriented towards research workers in the biological sciences. The new quantum-mechanical approach to ion channel gating elucidates mechanisms important to cellular function and signaling.

Wood Pole Overhead Lines

Tue, 12 Jun 2018 00:11:02 GMT

Wood Pole Overhead Lines provides comprehensive coverage of medium voltage wood pole overhead lines. It includes guidance on the planning and mechanical design of overhead lines, as well as details of statutory requirements and the latest UK and European standards affecting UK design of wood pole networks, Sag/tension calculations are explained, and details of the latest work on safe design tension limits to avoid conductor fatigue from vibration are included. The basic characteristics of bare and covered conductors are discussed as well as upgrading possibilities, condition assessment and the latest work on 'health indices' for overhead lines. Other topics include wood pole decay and mitigation methods, maintenance schedules, live line working and basic lightning protection.

Short-circuit Currents

Mon, 11 Jun 2018 23:56:15 GMT

The calculation of short-circuit currents is a central task for Power System engineers, as they are essential parameters for the design of electrical equipment and installations, the operation of power systems and the analysis of outages and faults.

Short-circuit Currents gives an overview of the components within power systems with respect to the parameters needed for short-circuit current calculation. It also explains how to use the system of symmetrical components to analyse different types of short-circuits in power systems. The thermal and elctromagnetic effects of short-circuit currents on equipment and installations, short-time interference problems and measures for the limitation of short-circuit currents are also discussed. Detailed calculation procedures and typical data of equipment are provided in a separate chapter for easy reference, and worked examples are included throughout.

Strapdown Inertial Navigation Technology, 2nd Edition

Mon, 11 Jun 2018 22:57:51 GMT

Inertial navigation is widely used for the guidance of aircraft, missiles, ships and land vehicles, as well as in a number of novel applications such as surveying underground pipelines in drilling operations. This book sets out to provide a clear and concise description of the physical principles of inertial navigation, the associated growth of errors and their compensation. There is also detailed treatment of recent developments in inertial sensor technology and a description of techniques for implementing and evaluating such systems. This new edition includes a number of refinements covering sensor technology, geodesy and error modelling, plus new chapters on MEMS technology and inertial systems applications.

Radar Imaging and Holography

Mon, 11 Jun 2018 22:47:14 GMT

Increasing information content is an important scientific problem in modern observation systems development. Radar, or microwave, imaging, a technique which combines radar techniques with digital or optical information processing, can be used for this purpose. Drawing on their own research, the authors provide an overview of the field and explain why a unified approach based on wave field processing techniques, including holographic and tomographic approaches, is necessary in high resolution radar design. Such techniques use the complex field incident on an observation surface to produce a hologram, which can be used to reconstruct an image of the object or to restore some of its physical parameters. This makes it possible to extract the size, coordinates and radar cross-section of individual scattering centres.

The book focuses on holography and tomography for quasimonochromatic and broadband signals, and gives detailed coverage of the basic physical methods, inverse problems and mathematical principles. It also contains discussion of new areas in imaging radar theory, holographic radar, the questions of estimation and improving radar image quality, and finally various practical applications in the fields of space, airborne radar, air traffic control, medical dia nostics and remote sensing.

Asymptotic and Hybrid Methods in Electromagnetics

Mon, 11 Jun 2018 22:05:22 GMT

There have been significant developments in the field of numerical methods for diffraction problems in recent years, and as a result, it is now possible to perform computations with more than ten million unknowns. However, the importance of asymptotic methods should not be overlooked. Not only do they provide considerable physical insight into diffraction mechanisms, and can therefore aid the design of electromagnetic devices such as radar targets and antennas, some objects are still too large in terms of wavelengths to fall in the realm of numerical methods. Furthermore, very low Radar Cross Section objects are often difficult to compute using multiple methods. Finally, objects that are very large in terms of wavelength, but with complicated details, are still a challenge both for asymptotic and numerical methods. The best, but now widely explored, solution for these problems is to combine various methods in so called hybrid methods.

Asymptotic and Hybrid Methods in Electromagnetics is based on a short course, and presents recent developments in the field.

Motion Vision

Mon, 11 Jun 2018 21:27:44 GMT

Segmenting the environment surrounding an autonomous vehicle into coherently moving regions is a vital first step towards intelligent autonomous navigation. Without this temporal information, navigation becomes a simple obstacle avoidance scheme that is inappropriate in highly dynamic environments such as roadways and places where many people congregate.

The book begins by looking at the problem of motion estimation from biological, algorithmic and digital perspectives. It goes on to describe an algorithm that fits with the motion processing model, and hardware and software constraints. This algorithm is based on the optical flow constraint equation and introduces range information to resolve the depth-velocity ambiguity, which is critical for autonomous navigation. Finally, implementation of the algorithm in digital hardware is described in detail, covering both the initial motion processing model and the chosen hardware platforms, and the global functional structure of the system.

Intelligent Control Systems using Computational Intelligence Techniques

Mon, 11 Jun 2018 21:22:31 GMT

Intelligent Control techniques are becoming important tools in both academia and industry. Methodologies developed in the field of soft-computing, such as neural networks, fuzzy systems and evolutionary computation, can lead to accommodation of more complex processes, improved performance and considerable time savings and cost reductions. Intelligent Control Systems using Computational Intellingence Techniques details the application of these tools to the field of control systems. Each chapter gives and overview of current approaches in the topic covered, with a set of the most important references in the field, and then details the author's approach, examining both the theory and practical applications.

Trusted Computing

Mon, 11 Jun 2018 21:02:52 GMT

As computers are increasingly embedded, ubiquitous and wirelessly connected, security becomes imperative. This has led to the development of the notion of a 'trusted platform', the chief characteristic of which is the possession of a trusted hardware element which is able to check all or part of the software running on this platform. This enables parties to verify the software environment running on a remote trusted platform, and hence to have some trust that the data sent to that machine will be processed in accordance with agreed rules.

This new text introduces recent technological developments in trusted computing, and surveys the various current approaches to providing trusted platforms. It also includes application examples based on recent and ongoing research. The core of the book is based on an open workshop on Trusted Computing, held at Royal Holloway, University of London, UK.

Intellectual Property Rights for Engineers, 2nd Edition

Mon, 11 Jun 2018 20:56:11 GMT

This fully revised and updated edition of Intellectual Property Rights for Engineers addresses recent developments in the area. The book explains the general principles behind the law protecting innovation, quoting cases from the engineering domain in order to clarify legal issues. Chapters outline the basic rights through automatic protection (copyright, design right) and registration systems (patent, registered design, trade mark), and also discusses the issues surrounding confidential information. The book clarifies precisely who owns the rights and how their use is constrained by EC law, and goes on to explain how to license or even litigate when necessary. Finally, strategic aspects for decision-making and management are discussed.