Ground Penetrating Radar: Theory and Practice is a practical guide to using this powerful underground surveying technique. The author uses her wide experience to explain the critical factors in using GPR and how parameters, such as wavelength, attenuation and loss need to be properly considered to obtain good survey results. The first chapter introduces the underlying physics and explains the formation of signal patterning. The next two chapters explain the significance of wavelengths for target detection, probing depths and resolution, and demonstrating the variety of signal presentation. Chapter four discusses why survey results are affected by water and air in the soil, and how this may affect depth readings. Additional chapters discuss a variety of methods for velocity calibration and suggests where they may be useful, challenging soil conditions and potential problem environments, data processing and a suite of useful techniques, amongst other important topics. The book gives a clear and formative guidance on understanding the critical factors in using GPR, as well as a checklist of surveying considerations.

The essence of cryptology is the making and breaking of codes and ciphers. This is the second volume of articles (the first was titled Cryptologia yesterday, today and tomorrow ) culled from Cryptologia (Rose-Hulman Institute of Technology, Terre Haute, IN). The articles are divided into five sectio

Space-time adaptive processing (STAP) is a technology for advanced radar systems that allows for significant performance enhancements over conventional approaches. Based on a course taught in industry, government and academia, this is a practical introduction to STAP concepts and methods, placing emphasis on implementation in real-world systems. It addresses the needs of radar engineers who are seeking to apply effective STAP techniques to their systems, and can also be used as a reference by non-radar specialists with an interest in the signal processing applications of STAP. The authors aim to explain critical topics in a manner that should be understandable to anyone with a basic background in radar and signal processing.

This book brings the reader up-to-date on all aspects concerning ECCM at the antenna level. It is a reference tool for professionals seeking quick answers to on-the-job problems. This text delivers an accurate description of working principles, processing schemes and performance evaluation techniques. In addition, it provides engineering details on the newest digital techiques for sidelobe jamming cancellation and digital beamforming (DFB).

The business of telecommunications is undergoing a period of change driven by changes in regulation, increasing demands for services and the development of new access technologies. The market structure of telecommunications is evolving rapidly as new and existing players strive to compete in an increasingly volatile market, while the advent of new data services is placing greater demands on the network as operators strive to offer new broadband services. Underpinning much of this change is the access technology itself, not only in the transitional form of copper twisted pairs, but also increasingly through the use of new fibre, radio and copper systems. The dominant cost of most telecommunication networks is the access network itself, which typically can demand up to 80% of the total investment required. This book presents an overview of the access network and discusses the technologies that are available. It begins with an introductory chapter defining terms and technologies and goes on to discuss each technology in turn, not only from a technology viewpoint but with a view on how it might be best deployed. Chapters are also included on planning systems, network management, DSL, fibre access networks, optical access networks, fixed wireless access, broadband, wireless LANs, UMTS, and SDH in the access network.

This book views multiple target tracking as a Bayesian inference problem. Within this framework it develops the theory of single target tracking, multiple target tracking, and likelihood ratio detection and tracking. In addition to providing a detailed description of a basic particle filter that implements the Bayesian single target recursion, this resource provides numerous examples that involve the use of particle filters. With these examples illustrating the developed concepts, algorithms, and approaches -- the book helps radar engineers track when observations are nonlinear functions of target site, when the target state distributions or measurement error distributions are not Gaussian, in low data rate and low signal to noise ratio situations, and when notions of contact and association are merged or unresolved among more than one target.

A desktop reference for designers of military communication systems using spread-spectrum techniques to achieve a low probability of intercept. Shows how to evaluate the detectability of candidate signal structures mathematically, and to select signal parameters that minimize the probability of dete

This reference provides information on electronic intelligence (ELINT) analysis techniques, with coverage of their applications, strengths and limitations. Now refined and updated, this second edition presents new concepts and techniques. The book is intended for newcomers to the field as well as engineers interested in signal analysis, ELINT analysts, and the designers, programmers and operators of radar, ECM, ECCM and ESM systems.

This comprehensive discussion of airborne early warning (AEW) system concepts encompasses a wide range of issues, including capabilities and limitations, developmental trends, and opportunities for improvement. With sections suited for both the specialist and the generalist, it provides broad coverage of AEW system concepts and enabling technologies. The book is supported by 202 equations and 170 illustrations.

Written to support an intensive short course on the subject. The material is presented as a subset of electronic warfare and is concerned primarily with systems which generate and radiate signals to interfere with hostile radar systems. Chapters deal with search and track radar range and angle count

Details improved approaches to the design of power oscillators that employ more analysis and theory and less empirical work than conventional design procedures. It bridges fundamental device physics and the development and implementation of practical microwave and millimeterwave power oscillators.

This book describes the steps involved in the evaluation of radar design and performance without complicated math. Easily understood by both engineers and non-technical personnel, it contains a comprehensive discussion of the complex factors involved in the radar design process.

This text provides the reader with the knowledge necessary to perform effective computer simulation of scattering for the real targets and conditions of radio wave propagation. By replacing field tests with the computer simulation methods presented in this resource, time and money is saved in the early stages of research and development. Supplemented with 283 equations and 121 illustrations, the book provides practical guidance in: estimating the effect of various signatures of new radar with target recognition; evaluating and comparing the effectiveness and complexity of recognition algorithms before they are actually introduced into radar; formulating requirements to radar subsystems and evaluating their tolerances; and predicting future radar performance.

With this book practitioners responsible for analyzing, specifying or evaluating RCS imaging systems will be able to define performance limits using basic physical and mathematical principles. Information on instrumentation systems for acquiring data and two new chapters on applications of new techniques are included. The emphasis of the book is on imaging as applied to radar cross-section measurements. With it the reader will learn how to use the latest techniques to perform RCS imaging in laboratory or outdoor test ranges. This book is suitable for self-study or for use in a short course for practising engineers.

This book constitutes a short course on noise jamming, range, angle and velocity deception, and on-off keying. The book draws upon current computer simulation capabilities to determine quantitative values of the jammer-to-signal ratios that cause a specified jamming effect.

Walks the reader through adaptive approaches to radar signal processing by detailing the basic concepts of various techniques and then developing equations to analyze their performance. Finally, it presents curves that illustrate the attained performance.

This book details the advantages of MFAR main parameter design and guides you through parameter and performance evaluation procedures. It presents practical design information on combinations of various radar functions, clutter conditions, multipath, and transmitted waveform design when Doppler filters adapted for clutter cancellation.

This hands-on reference details statistical methods, estimation algorithms, and design techniques for the measurement of rainfall and cloud cover from space.

Developed by recognized experts in the field, this first-of-its-kind resource provides an overview of the basic principles of passive radar technology, real passive radar systems and new developments in the industry. It explains in-depth how passive radar works and how it differs from the active type, while demonstrating the benefits and drawbacks of the technology. The book also explores properties of ambiguity functions, digital vs. analog, digitally-coded waveforms, vertical-plane coverage, and satellite-borne and radar illuminators. The book functions as a practical guide on direct signal suppression, passive radar performance prediction and detection and tracking. It contains concrete examples of systems and results, including analog TV, FM radio, cell phone base stations, DVB-T and DAB, HF skywave transmissions, indoor WiFi and low-cost scientific remote sensing.

Fifteen chapters on topics that include: space-based systems, orbital considerations, ionospheric environment, bistatic radar, rendezvous radar, radar altimeters, scatterometers, thermal control, radar cross section, SBR clutter, prime power systems in space. A planned chapter on T/R modules does no

Radar is a legal necessity for the safe navigation of merchant ships, and within vessel traffic services is indispensable to the operation of major ports and harbours. Target Detection by Marine Radar concentrates solely on civil marine operations and explains how marine surveillance radars detect their targets. The book is fully illustrated and contains worked examples to help the reader understand the principles underlying radar operation and to quantify the importance of factors such as the technical features of specific equipment, the weather, target reflection properties, and the ability of the operator. The precision with which targets are positioned on the radar screen and with which their progress is tracked or predicted depends on how definitely they have been detected, therefore a whole chapter has been devoted to the issue of accuracy. The various international regulations governing marine radar are examined, a brief historical background is given to modern day practice and the book doses with a discussion of the ways in which marine radar may develop to meet future challenges.

Explains numeric and symbolic approaches to data association, tracking combination, classification, and situation assessment, and provides an overview of data fusion theory and mathematical formalisms.