Infinite Bandwidth

This introductory reference covers the technology and concepts of ultra-wideband (UWB) radar systems. It provides up-to-date information for those who design, evaluate, analyze, or use UWB technology for any application. Since UWB technology is a developing field, the authors have stressed theory and hardware and have presented basic principles and concepts to help guide the design of UWB systems. Introduction to Ultra-Wideband Radar Systems is a comprehensive guide to the general features of UWB technology as well as a source for more detailed information.

The Fourier transform is one of the most important mathematical tools in a wide variety of fields in science and engineering. In the abstract it can be viewed as the transformation of a signal in one domain (typically time or space) into another domain, the frequency domain. Applications of Fourier transforms, often called Fourier analysis or harmonic analysis, provide useful decompositions of signals into fundamental or "primitive" components, provide shortcuts to the computation of complicated sums and integrals, and often reveal hidden structure in data. Fourier analysis lies at the base of many theories of science and plays a fundamental role in practical engineering design. The origins of Fourier analysis in science can be found in Ptolemy's decomposing celestial orbits into cycles and epicycles and Pythagorus' de composing music into consonances. Its modern history began with the eighteenth century work of Bernoulli, Euler, and Gauss on what later came to be known as Fourier series. J. Fourier in his 1822 Theorie analytique de la Chaleur [16] (still available as a Dover reprint) was the first to claim that arbitrary periodic functions could be expanded in a trigonometric (later called a Fourier) series, a claim that was eventually shown to be incorrect, although not too far from the truth. It is an amusing historical sidelight that this work won a prize from the French Academy, in spite of serious concerns expressed by the judges (Laplace, Lagrange, and Legendre) re garding Fourier's lack of rigor.

Franciscan University of Steubenville Professor Eugene Gan authors this first-of-its-kind Catholic roadmap for the digital age: Infinite Bandwidth: Encountering Christ in the Media. He navigates you faithfully through the digital world, encouraging frustrated parents not to throw out cell phones, ban the Internet, chuck computers, or pitch portable media devices. That would be a mistake and believe it or not would be going against more than seven decades of Catholic teaching. From Church documents on social communications, Gan extracts seven principles or "media keys" of how to approach and use media. The Church and Gan say that we must enter into the modern day "Areopagus," the social and intellectual hub of ancient Athens where Paul preached to pagans, and use the media tools God has given us to make truth known and serve mankind. Cardinal John Patrick Foley says, "Frankly, I wish that such a book had existed when I was president of the Pontifical Council for Social Communications as a text which I could have recommended. The important thing, however, is that it exists now to provide a text, context, and challenge for those who wish to bring both Christian principles and professional excellence to their work in the media." Gan offers chapter after chapter of real-life experience of how to assess movies, games, and gadgets for you and your teens. Of how to judge the merits of a film like Saving Private Ryan, and what sets it apart from Nightmare on Elm Street. Can the one be acceptable viewing and the other not? Definitely. And Gan details why. Infinite Bandwidth: Encountering Christ in the Media is way out front of the newest gizmo and will stay there thanks to its timeless principles that can be applied in all digital terrain, now and the future. Parents, educators, and students will put this book down with an entirely different attitude about the relationship between faith and media use.

This comprehensive textbook will help readers to acquire a thorough understanding of the fundamentals of electromagnetism and its applications in various areas including spectroscopy, signal processing and contemporary computation. The text introduces the principles and applications of electricity, magnetism, and electromagnetic theory, which serve as foundations for communication systems, spectroscopy, and modern computing. It is followed by a discussion of the digital systems and their importance in computing, differences between digital signal transmission and wireless media, visualization techniques and useful simulation and computational techniques, together with advances in quantum computing. Aimed at senior undergraduate and graduate students in the fields of physics, electrical engineering, electronics and communication engineering, this textbook: Provides fundamentals of electromagnetism and its applications in a single volume. Discusses digital signal processing and wireless communication in depth. Covers advanced applications of electromagnetism in communication, spectroscopy, and computing. Discusses computer modeling & simulation, artificial intelligence, and quantum computing.

The propagation of light in dispersive media is a subject of fundamental as well as practical importance. In recent years attention has focused in particular on how refractive index can vary with frequency in such a way that the group velocities of optical pulses can be much greater or much smaller than the speed of light in vacuum, or in which the refractive index can be negative. Treating these topics at an introductory to intermediate level, Fast Light, Slow Light and Left-Handed Light focuses on the basic theory and describes the significant experimental progress made during the past decade. The book pays considerable attention to the fact that superluminal group velocities are not in conflict with special relativity and to the role of quantum effects in preventing superluminal communication and violations of Einstein causality. It also explores some of the basic physics at the opposite extreme of very slow group velocities as well as stopped and regenerated light, including the concepts of electromagnetically induced transparency and dark-state polaritons. Another very active aspect of the subject discussed concerns the possibility of designing metamaterials in which the refractive index can be negative and propagating light is left-handed in the sense that the phase and group velocities are in opposite directions. The last two chapters are an introduction to some of the basic theory and consequences of negative refractive index, with emphasis on the seminal work carried out since 2000. The possibility that "perfect" lenses can be made from negative-index metamaterials-which has been perhaps the most controversial aspect of the field-is introduced and discussed in some detail.

Writing a comprehensive book on satellite communications requires the com mand of many technical disciplines and the availability of up-to-date information on international recommendations, system architectures, and equipment stand ards. It is therefore necessary to involve many authors, each possessing a good level of knowledge in a particular discipline. The problem of using a coherent and unambiguous set of definitions and basic terms has been solved by including in the book all the background information needed for understanding satellite communication systems, without any major reference to other textbooks specializing in particular disciplines. The obvious consequence of this approach has been the large size of the book, with the advantages, however, of practically complete independence from other books, more systematic discussion of the subject matter, and better readability. After the required background information, emphasis has been placed on the discussion of techniques and system design criteria rather than on specific equipment implementation or description of particular systems. The book may be divided in five parts as follows: • The first five chapters provide most of the required background information. • Chapter 6 is an introductory outline of satellite communication systems. • Chapters 7 to 13 deal with the various aspects of technical system design. • Chapter 14 discusses system economics. • Chapter 15 provides a brief insight into some foreseeable future develop ments of satellite communications.

The author explores the impediments to efficient wireless transmission and techniques and proposes ways to mitigate these problems. Problems presented include both fading and shadowing, which increase the possibility of outrage in wireless systems.

Presents a scientific history of noise, defining it as an unaesthetic signal which occurs at every level of the universe and which has made significant impact on each period of time, from the Ice Age to the Information Age.