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

by Henning F. Harmuth, Malek G.M. Hussain, Raouf N. Boules

Overview

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.

Product Details

ISBN-13:	9780306460548
Publisher:	Springer US
Publication date:	01/31/1999
Edition description:	1999
Pages:	213
Product dimensions:	7.01(w) x 10.00(h) x 0.02(d)

Table of Contents

1 Introduction.- 1.1 Maxwell’s Equations.- 1.2 Electric Monopole Currents.- 1.3 Electric Dipole Currents.- 1.4 Magnetic Dipole Currents.- 1.5 Relativistic Electric Dipole Currents.- 1.6 Relativistic Magnetic Dipole Currents.- 1.7 Electromagnetic Missiles.- 2 Reflection and Transmission of Incident Signals.- 2.1 Partial Differential Equations for Perpendicular Polarization.- 2.2 Generalization of Snell’s Law for Signals.- 2.3 Reflection of a Step Wave.- 2.4 Reflection of Rectangular Pulses.- 2.5 Partial Differential Equations for Parallel Polarization.- 2.6 General Polarization of TEM Waves.- 3 Analytic Solution for Cylinder Waves.- 3.1 Cylinder Waves Excited at a Boundary.- 3.2 Magnetic Excitation of Signal Solutions.- 3.3 Associated Electric Field Strength.- 3.4 Electric Excitation Force.- 3.5 Associated Magnetic Field Strength.- 3.6 Transmission of Signals Into Medium 2.- 4 Wave Theory of Electromagnetic Missiles.- 4.1 Line Array of Radiators.- 4.2 Pulse Shape Along the Array Axis.- 4.3 Pulse Shape Perpendicular to the Array Axis.- 4.4 Effect of Pulse Duration on Pulse Shape.- 4.5 Variation of the Energy Near the Focusing Point.- 5 Signal Propagation and Detection in Lossy Media.- 5.1 Planar Wave Solution in Lossy Media.- 5.2 Signal Distortions.- 5.3 Detection of Distorted Synchronized Signals in Noise.- 5.4 Detection of Distorted Radar Signals in Noise.- 5.5 Electromagnetic Signals in Seawater.- 5.6 Distance Information from Distortions.- 5.7 Radiation of Slowly Varying EM Waves.- References and Bibliography.

Editorial Reviews

Explores the addition of a magnetic dipole current density term to Maxwell's equations, the resulting equations that permit signal solutions, and their practical applications. For instance, the authors show that Snell's law of reflection does not hold and that signals can be designed that yield deviations, and suggest how anti- stealth radars can be designed. Other applications include airborne anti-submarine radar, and the use of focused signals for the improvement of penetration depth and resolution of ground-probing radar. Annotation c. by Book News, Inc., Portland, Or.

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