Resonance and Aspect Matched Adaptive Radar (RAMAR)

The book describes a new form of radar for which the target response is frequency, i.e., resonance-dependent. The book provides both prototype designs and empirical results collected from a variety of targets. The new form of radar, called RAMAR (Resonance and Aspect Matched Adaptive Radar) advances radar — mere ranging and detection — to the level of RF spectroscopy, and permits an advance of spectroscopic methods from optical, through infra-red and into the RF spectral range. The book will describe how a target's response can be a function of frequency components in the transmitted signal's envelope as well as the signal's carrier.

Sample Chapter(s)
Chapter 1: Introduction (1,822k)

• Introduction:
  • A Priori and A Posteriori Information Captures
  • LTI versus LTV Systems
  • Signal Envelope Match vs Carrier Match
  • Target Modeling and Identification by Coherence Functions
  • The WH Transform & WHWFs
  • Treatment of Nonstationary Signals
  • Carrier Frequency-Envelope Frequency (CFEF) Spectra
  • Polarization
• Part 1 — Ka-Band MAP Prototype:
  • Ka-Band MAP System
  • Targets Addressed by the Ka-Band System
  • Mie (Resonance), Optical & Rayleigh Scattering
  • Return Signal SNR Enhancement
  • Corner Reflector Tests
  • Exclusive & Inclusive Optimum Transmit Signal Design for Target Aspect Independent Recognition
  • Vehicle Targets
  • Model Targets
  • Nonlinear Combination of Separate Subcomponent Target Minor Resonances
  • Target Identification
  • Selective Enhancement of Target Major & Minor Resonances
  • Target Surface Detection
  • Nonlocal Transformations: Wigner-Ville Distribution & Ambiguity Function
  • Nonlocal Transformations: Hilbert-Huang Transform
  • Nonlocal Transformations: Quadratic Fractional Fourier Transform
  • Weber-Hermite Transforms: Local & Global
  • Radon Transform
  • Frequency Decomposition: Independent Component Analysis, Matching Pursuit, Complexity Pursuit, Blind Source Separation
• Part 2 — UHF-Band MAP Prototype:
  • UHF MAP System
  • Ground Tests Through Foliage
  • Target: Barrels
  • Target: Roof Panels
  • Target: Microwave Oven
  • Targets: Trucks
  • Target: Artillery Shell
  • Anechoic Chamber Tests
  • Target: Barrel Aspect Up: PRX
  • Target: Barrel Aspect Side: PRX
  • Target: Generator: PRX
  • Target: Microwave Oven: PRX
  • Target: Roof Panel: PRX
  • Target: Truck: PRX
  • Multiple-Window Spectra
  • Target Linear Frequency Response Functions
  • Carrier Frequency-Envelope Frequency (CFEF) Spectra
  • Flight Tests of FOPEN RAMAR
  • Target Detection Under Foliage
  • Comparisons of the Results of the Anechoic Chamber Tests and the Flight Tests
  • Summary and System Improvements