Sequency Theory. Foundations and Applications. Advances in Electronics and Electron Physics. Supplement 9

Harmuth, Henning F.

Academic Press, Inc.

Acoustic Imaging with Electronic Circuits. Advances in Electronics and Electron Physics, Supplement 11

Academic Press

xxi 396p hardback with dustjacket, fresh clean copy from an engineering library, clean copy, very good, tear to back of jacket

Nonsinusoidal Waves for Radar and Radio Communication (Advances in Electronics & Electron Physics Supplement)

Science & Math

Physics

Academic Pr

Electromagnetic Signals deals with the practical applications of nonsinusoidal electromagnetic waves or carrier free radars, ultrawideband technology and large relative bandwidth technology. The book is unique since it deals with a number of current conventional radar problems along with proposed solutions.

Electromagnetic Signals: Reflection, Focusing, Distortion, and Their Practical Applications

Computers & Technology

Hussain, Malek G.M.

Boules, Raouf N.

Networking & Cloud Computing

Springer

Most texts on electromagnetic theory follow the classical approach of steady state solutions of Maxwell's equations. In Interstellar Propagation of Electromagnetic Signals, the authors, H. Harmuth and K. Lukin, point out the deficiencies in Maxwell's theory and present an exciting new way of obtaining transient or signals solutions.  This book can be used by researchers, graduate students and scientists in the areas of physics, astrophysics, astronomy and electromagnetic theory or electromagnetics.

Interstellar Propagation of Electromagnetic Signals

Lukin, Konstantin

Astronomy & Space Science

Transmission of Information by Orthogonal Functions

Mathematics

NEW YORK SPRINGER-VERLAG

The orthogonality of functions has been exploited in communications since its very beginning. Conscious and extensive use was made of it by Kotel'nikov in theoretical work in 1947. Ten years later a considerable number of people were working in this field. However, little experimental use could be made of the theoretical results before the arrival of solid state operational amplifiers and integrated circuits. The advantages of Walsh functions, which are emphasized in this book, were recognized independently by several scientists in the early sixties. Among them were E. Gibbs, K. Henderson, F.Ohnsorg, G. Sandy and E. Vandivere, whose work was not published until many years later. Somewhat more than half the illustrations in this second edition were not contained in the first edition and this reflects the changes in contents. The most striking difference between the two editions is the progress toward practical applications made in the intervening three years. However, it may turn out that the most important change is one that appears rather theoretical on the surface and that concerns shift-invariant features strongly connected with sine-cosine functions. These functions are projections of the exponential function which, in turn, is the character group of the real numbers. The topology of the real numbers is generally accepted to be the same as that of time or a one-dimensional space, and this is the basis for a variety of claims that sinusoidal functions are unique and superior to all others.

Transmission of information by orthogonal functions

Springer, Verlag

Engineering & Transportation

Automotive

The orthogonality of functions has been exploited in communications since its very beginning. Conscious and extensive use was made of it by KOTEL' NIKOV in theoretical work in 1947. Ten years later a considerable number of people were working in this field rather independently. However, little experimental use could be made of the theo­ retical results before the arrival of solid state opera­ tional amplifiers and integrated circuits. A theory of communication based on orthogonal functions could have been published many years ago. However, the only useful examples of orthogonal functions at that time were sine-cosine functions and block pulses, and this made the theory appear to be a complicated way to derive known re­ sults. It was again the advance of semiconductor techno­ logy that produced the first really new, useful example of orthogonal functions: the little-known Walsh functions. In this book emphasis is placed on the Walsh functions, since ample literature is available on sine-cosine func­ tions as well as on block pulses and pulses derived from them.

Crafts, Hobbies & Home

Gardening & Landscape Design

Reference

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