Ultrawideband Short-Pulse Radio Systems.

Intro -- Ultrawideband Short-Pulse Radio Systems -- Contents -- Preface -- Chapter 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 -- Chapter 2 Ultrawideband Pulse Radiation -- Introduction -- 2.1 Elementary Sources of Ultrawideband Pulse Radiation -- 2.1.1 The Electric Hertzian Dipole -- 5.1.2 The Slot Radiator -- 5.1.3 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 -- Chapter 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 -- Chapter 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 -- Chapter 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 -- Chapter 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 -- Chapter 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 -- Chapter 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 -- Chapter 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 -- General Symbols -- List of Main Abbreviations -- About the Authors -- Index.

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