E-catalog        

Includes bibliographical references

Index: p. 429-432

Machine generated contents note: ch. 1 Introduction to Ultrawideband, Short-pulse Radio Systems -- 1.1.History of the Development of Ultrawideband Radio Systems -- 1.2.Ultrawideband radar -- 1.2.1.Detection of Radar Objects -- 1.2.2.Recognition of Radar Objects -- 1.3.Ultrawideband Communication Systems -- 1.3.1.Single-band Ultrawideband Communications -- 1.3.2.Multiband Ultrawideband Communications -- 1.3.3.Ultrawideband Direct Chaotic Communications -- 1.4.Susceptibility of Electronic Systems to Ultrawideband Electromagnetic Pulses -- 1.5.Ultrawideband Technology Applications -- Conclusion -- Problems -- References -- ch. 2 Ultrawideband Pulse Radiation -- Introduction -- 2.1.Elementary Sources of Ultrawideband Pulse Radiation -- 2.1.1.The Electric Hertzian Dipole -- 2.1.2.The Slot Radiator -- 2.1.3.The Magnetic Hertzian Dipole -- 2.2.Fields of Finite-size UWB Pulse Radiators -- 2.2.1.Radiation from Ring Sources -- 2.2.2.Radiation from Disk and Circular Aperture Sources -- 2.3.The Structure of the Field of an Ultrawideband Radiator -- 2.3.1.The Boundaries of the Field Regions of a Short Radiator -- 2.3.2.The Boundaries of the Field Regions of Aperture Radiators -- 2.4.Efficiency of the Generation of Electromagnetic Pulse Radiation -- 2.4.1.Radiation Patterns -- 2.4.2.The Energy, the Peak-power, and the Peak-field-strength Efficiency of a UWB Radiator -- Conclusion -- Problems -- References -- ch. 3 Propagation of Ultrawideband Pulses -- Introduction -- 3.1.Propagation of Ultrawideband Electromagnetic Pulses in Conducting Media -- 3.1.1.Propagation of Ultrawideband Pulses in Unbounded Media -- 3.1.2.Earth's Atmosphere -- 3.1.3.Distortions of High-power Pulses in the Earth's Lower Atmosphere -- 3.2.Layered Media -- 3.2.1.Propagation of an Ultrawideband Pulse through an Interface between Two Media -- 3.2.2.Propagation of Pulses Generated by a Point Source in a Multilayered Medium -- Conclusion -- Problem -- References -- ch. 4 Scattering of Ultrawideband Electromagnetic Pulses by Conducting and Dielectric Objects -- Introduction -- 4.1.Scattering of Pulsed Electromagnetic Waves by Conducting Objects -- 4.1.1.Statement of the Problem. Derivation of Calculation Formulas -- 4.1.2.Wave Scattering by a Perfectly Conducting Rectangular Plate -- 4.1.3.Wave Scattering by a Perfectly Conducting Ellipsoid or Sphere -- 4.1.4.Wave Scattering by a Perfectly Conducting Finite Circular Cone -- 4.1.5.Creeping Waves -- 4.2.Scattering of Pulsed Plane Electromagnetic Waves by Dielectric Objects -- 4.2.1.Wavelet Analysis of the Wave Scattering by a Dielectric Sphere -- 4.2.2.Numerical Results and Discussion -- Conclusion -- Problems -- References -- ch. 5 Impulse Responses of Objects and Propagation Channels -- Introduction -- 5.1.The Impulse Response: Models of Signals and Their Spectral Characteristics -- 5.1.1.Forms and Properties of the Impulse Response -- 5.1.2.The Envelope, Instantaneous Phase, and Instantaneous Frequency of a Signal: The Analytic Signal -- 5.1.3.Kramers -- Kronig-Type Relations -- 5.1.4.A Pole Model of Exponentially Decaying Signals -- 5.1.5.The Singular Value Decomposition Method in Problems of Impulse Response Estimation and Reconstruction -- 5.2.Use of Regularization and a Kramers-Kronig-Type Relation for Estimating Transfer Functions and Impulse Responses -- 5.2.1.General Relations -- 5.2.2.Reconstruction of Transfer Functions and Impulse Responses using Regularization and Kramers-Kronig-Type Relations -- 5.2.3.Comparison of the Impulse Responses Estimated Using Two Phase Spectrum Models -- 5.3.A Pole Model of the Signal in the Problem of Estimating the Impulse Response of a Propagation Channel -- 5.3.1.Signal Representation and Impulse Response Estimation using Pole Functions -- 5.3.2.Estimation of the Impulse Response of a Coaxial Cable Transmission Line -- 5.3.3.Stability of the Reconstruction of Impulse Responses to the Probe Pulse Waveform and Measurement Noise -- 5.4.A Pole Model of a Signal in Estimating the Impulse Responses of a Conducting Sphere and Cylinder -- 5.5.Reconstruction of Ultrawideband Pulses Passed Through Channels with Linear Distortions -- 5.5.1.Solution of the Pulse Reconstruction Problem -- 5.5.2.Numerical Simulation -- 5.5.3.Experimental Verification of the UWB Pulse Reconstruction Method -- Conclusion -- Problems -- References -- ch. 6 Receiving Antennas -- Introduction -- 6.1.The Transfer Function of a Receiving Antenna -- 6.1.1.Determination of the Transfer Function of a Receiving Antenna -- 6.1.2.The Current Distribution in the Receiving Wire of an Antenna -- 6.1.3.Electromagnetic Parameters of a Linear Receiving Antenna -- 6.1.4.The Transfer Function of a Straight Receiving Wire -- 6.1.5.The Transfer Function of a Curvilinear Receiving Wire -- 6.2.Distortion of Ultrawideband Electromagnetic Pulses by a Receiving Antenna -- 6.2.1.Receiving of Ultrawideband Electromagnetic Pulses by a Dipole -- 6.2.2.Receiving of Ultrawideband Electromagnetic Pulses by a Loop Antenna -- 6.2.3.Proportion Between the Received Signal Power and the Dissipated Power -- 6.3.Methods for Reducing Distortion of a Received Signal -- 6.3.1.Long Dipoles with Noncollinear Arms -- 6.3.2.Unmatched Short Dipoles -- 6.3.3.Active Antennas -- 6.4.Vector Antennas for Recording the Space-Time Structure of Ultrawideband Electromagnetic Pulses -- 6.4.1.Design Concepts of Vector Receiving Antennas -- 6.4.2.Investigation of the Polarization Structure of a Pulsed Electromagnetic Field -- 6.4.3.Determination of the Direction of Arrival of Ultrawideband Electromagnetic Pulses -- Conclusion -- Problems -- References -- ch. 7 Transmitting Antennas -- Introduction -- 7.1.The Transfer Function of a Transmitting Antenna -- 7.1.1.The Transfer Function of a Radiation Source -- 7.1.2.The Current Distribution in a Linear Radiator -- 7.1.3.The Transfer Function of a Linear Radiator -- 7.2.Distortion of Ultrawideband Electromagnetic Pulses during Radiation -- 7.2.1.The Radiated Pulse Waveform for a Monopole and a Collinear Dipole -- 7.2.2.The Waveform of a Pulse Radiated by a V-shaped Radiator -- 7.2.3.The Waveform of a Pulse Radiated by a Ring Radiator -- 7.3.Methods for Broadening the Pass Band of a Transmitting Antenna -- 7.3.1.The Energy Relationships Determining the Match Band of a Radiator -- 7.3.2.The Quality Factor of a Linear Radiator -- 7.3.3.The Pass Band of a Combined Radiator -- 7.4.Flat Combined Antennas -- 7.4.1.Unbalanced Combined Antennas -- 7.4.2.Balanced Combined Antennas -- 7.5.Volumetric Combined Antennas -- 7.5.1.Radiation of Low-power Pulses -- 7.5.2.Antennas Intended for Radiation of High-power Pulses -- Conclusion -- Problems -- References -- ch. 8 Antenna Arrays -- Introduction -- 8.1.Directional Properties of Antenna Arrays -- 8.1.1.Numerical Calculations -- 8.1.2.Experimental Investigations -- 8.2.Energy Characteristics of Antenna Arrays -- 8.2.1.Distribution Systems -- 8.2.2.Structure of the Radiating System -- 8.3.Antenna Arrays Radiating Orthogonally Polarized Pulses -- 8.4.Characteristics of Wave-beam-scanning Linear Antenna Arrays -- 8.4.1.Nanosecond Pulse Excitation of the Arrays -- 8.4.2.Picosecond Pulse Excitation of Antenna Arrays -- 8.5.Active Receiving Antenna Arrays -- 8.5.1.A Dual-polarized Planar Array -- 8.5.2.A Switched Dual-Polarized Linear Antenna Array -- Conclusion -- Problems -- References -- ch.

9 High-Power Ultrawideband Radiation Sources -- Introduction -- 9.1.The Limiting Effective Radiation Potential of a UWB Source -- 9.2.A Bipolar High-Voltage Pulse Generator -- 9.2.1.A Monopolar Voltage Pulse Generator -- 9.2.2.A Bipolar Pulse Former with an Open Line -- 9.3.Single-Antenna Radiation Sources -- 9.4.Radiation Sources with Synchronously Excited Multielement Arrays -- 9.4.1.The Radiation Source with a Four-element Array -- 9.4.2.Radiation Sources with 16-element Arrays -- 9.4.3.A Radiation Source with a 64-element Array -- 9.5.Production of Orthogonally Polarized Radiation Pulses -- 9.6.A Four-Channel Source Radiating in a Controlled Direction -- 9.7.A Controlled-Spectrum Radiation Source -- Conclusion -- Problems -- References.