Ultrawideband Short-Pulse Radio Systems

Content: 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.