1st Edition

Introduction to Ultra-Wideband Radar Systems

Edited By James D. Taylor Copyright 1994

    This introductory reference covers the technology and concepts of ultra-wideband (UWB) radar systems. It provides up-to-date information for those who design, evaluate, analyze, or use UWB technology for any application. Since UWB technology is a developing field, the authors have stressed theory and hardware and have presented basic principles and concepts to help guide the design of UWB systems. Introduction to Ultra-Wideband Radar Systems is a comprehensive guide to the general features of UWB technology as well as a source for more detailed information.

    Ultra-Wideband Radar Overview, J.D. Taylor
    Introduction
    Ultra-Wideband Radar Terminology and Concepts
    Potential Applications of UWB Radar
    UWB Systems Frequency Spectrum Sharing and Interference Issues
    Book
    Conclusion
    References
    Technical Issues in Ultra-Wideband Radar Systems, H.F. Engler, Jr.
    Introduction
    Fundamental Radar Principles
    Classification of Radar Waveforms
    Technical Issues in UWB Radar System Design
    Summary
    References
    Appendices: Signal Characteristics Governing Range and Velocity Measurement Resolution; Range Accuracy Requirements for Velocity Estimation from Differential Time Delay; The Concept of Nonlinearity
    Analytical Techniques for Ultra-Wideband Signals, M. Rangaswamy and T.K. Sarkar
    Preface
    Part 1: Fourier Analysis of Signals
    Introduction
    Information and Bandwidth
    Fourier Analysis of Signals
    Properties of the Fourier Transform
    Dirac-Delta Function
    Fourier Transform of Periodic Signals
    Numerical Computation of the Fourier Transform
    Spectral Density
    Times Correlation of Power Signals
    Power Spectral Density of Random Signals
    Conclusion
    References
    Part 2: Laplace Transforms and Signal Analysis
    Introduction
    Laplace Transforms
    Inverse Laplace Transform
    Properties of Laplace Transform
    One-Sided Laplace Transform
    Applications of the Two-Sided Laplace Transform
    Pulse Propagation in a Long Medium
    Conclusion
    References
    Part 3: Limitations of Time and Frequency Approaches
    Introduction
    Consideration in Performing Time-Domain Measurements
    Data Acquisition
    Processing Considerations
    Transformations from the Discrete to the Continuous Domain
    Experimental Verification
    Characterization of Objects in the Frequency Domain
    Conclusion
    References
    Transmitters
    Power Supply Design, D. Platts
    Introduction
    Considerations for Power Supply Design
    Pulsed Power Supplies
    Switching Techniques for Pulsed Power Supplies
    Conclusion
    References
    Light-Activated Semiconductor Switches for UWB Radar, O.S.F. Zucker and I.A. McIntyre
    Introduction
    The Evolution of the Requirements
    Digital Synthesis of UWB Signals by Sequential Switching
    Digital Synthesis: Experimental Results
    Switches and Their Limits
    Switch Optical Requirements
    Switch Choice
    Conclusion
    Acknowledgments
    References
    Ultra-Wideband Antenna Technology
    Introduction and Overview
    Antennas and UWB Signals, P.R. Foster
    Introduction
    Antenna Elements
    Aperture Antennas
    References
    Array Antenna Calculations in the Time Domain Using Pseudorandomly Coded Signals, J.D. Halsey
    Introduction
    Impulse Signal Design
    Correlating Receivers
    Fundamentals of Beamforming in the Time Domain
    Numerical Simulation
    Conclusions
    References
    Appendix: A Discussion of Time-Domain Field Equations
    Ultra-Wideband Impulse Antennas, M.G.M. Hussain
    Introduction
    Relative Bandwidth
    The Large-Current Radiator
    Field Strengths and Magnetic Flux of the Large-Current Radiator
    Measured Antenna Patterns
    References
    Linear Array Beam Forming with Nonsinusoidal Waves, M.G.M. Hussain
    Introduction
    Array Beamforming with Sinusoidal Waves
    Beamforming with Nonsinusoidal Waves
    Frequency Domain Array Beamforming
    Transfer Function and Impulse Response of Linear Array
    Synthesis of Antenna Array Beam Patterns
    Summary
    References
    Direct Radiating Systems
    A Basic UWB Design and Experiments: Blumlein Impulse Generator and TEM Radiator, W.C. Nunnally and R.N. Edwards
    Practical UWB Impulse Generators and Radiators
    Description of Transverse Electromagnetic Transmitter
    Basic Impulse Radiation Considerations
    Experimental Results
    Conclusions
    References
    Design and Analysis of an Example of NEMP Radiating Antenna, D. Giri
    Introduction
    Design and Analysis of an Example of NEMP Radiating Antenna
    Radiating NEMP Simulators
    Antenna Concepts for UWB Radar
    Acknowledgments
    References
    Propagation and Energy Transfer
    RF Propagation in the Atmosphere, R. Roussel-Dupré
    Introduction
    UWB Propagation
    Low-Power Propagation through a Background Plasma
    High-Power Propagation in Nonlinear Media
    References
    Energy Transfer through Media and Sensing of the Media, T.W. Barrett
    Introduction to Energy Transfer Concepts
    Advanced Theory of Dielectrics and Transmissions through Media
    Pulse Envelope Effects
    Soliton Waves, Group Theory, and Electromagnetic Missile Concepts
    References
    Appendices: Further Developments in Self-Induced Transparency; The Nonlinear Wave Equations and Solitons; Relation of U(1) and SU(2) Symmetry Groups
    Transmitter Signature and Target Signature of Radar Signals, H.F. Harmuth
    Introduction
    Features of Carrier-Free Radar Signals
    Position Coding and Large Target Signature
    Character Coding and Large Target Signature
    Conclusions
    References
    Appendix: Continuous and Transient Response of Resonant Circuits
    Radar Cross Section and Target Scattering, M.L. VanBlaricum
    Introduction
    Radar Cross Section
    The Scattering Matrix
    Frequency Dependence of RCS
    Relationships among CW, Transient, and Wideband Scattering
    The Singularity Expansion Formulation
    Resonance Based Target Identification
    References
    Ultra-Wideband Radar Receivers, J.D. Taylor and E.C. Kisenwether
    Introduction
    Narrowband and UWB Signal Receiver Concepts
    UWB Threshold Signal Detection
    Correlation Detection
    UWB Radar Receivers and Signal Processing
    References
    Appendices: Narrowband Receiver Sensitivity to UWB Signals; Computation of Correlator Output vs. SNR
    High Order Signal Processing for Ultra-Wideband Radar Signals, V.Z. Marmarelis, D. Sheby, E.C. Kisenwether, and T.A. Erdley
    Introduction
    Background
    Methodology
    Experiment
    Results
    Conclusions
    Acknowledgments
    References
    Performance Prediction and Modeling, T.W. Barrett
    Introduction and Overview
    Theoretical Background for Time Domain Signal Processing
    Radar Performance Prediction Principles
    Comparison Analysis of Frequency Domain and Time Domain Signals
    Time Domain Radar Performance Prediction
    Rules for Time Domain Radar Performance Equation
    Practical Example of a Time Domain Radar System and Analysis
    References
    Appendices: Periodic, Aperiodic, and Random Signals; The Gaussian Approximation: Heterodyne vs. Homodyne Reception; Boundary Diffraction

    Biography

    James D. Taylor