Experimental Investigation of Radar Cross Section Spatial Correlation Properties for a Point Scattering Target

Abstract

This research investigates the spatial correlation of RCS. In pulsed radar systems, probability of detection for partially correlated signals depends on the autocovariance of the target's RCS. The RCS changes pulse to pulse due to spatial and time fluctuations. Spatial fluctuation are due to the motion of all scatterers relative to the radar (i.e. changing aspect angle). Time fluctuations are due to relative motion of scatterers to each other (i.e. wings flexing, engines spinning). Theory developed at AFIT [9] can generate autocovariance estimates from a distribution of scatterers. Theory based autocovariance estimates are compared to static measurement based autocovariance estimates in order to validate this theory. Interaction among scatterers is the most significant source of deviation between theory and measurement based autocovariance estimates.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1996
Accession Number
ADA320816

Entities

People

  • John D. Shannon

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Acoustic Absorption
  • Air Force
  • Aircrafts
  • Anechoic Chambers
  • Aspect Angle
  • Detection
  • Engineering
  • Geometry
  • Probability
  • Radar
  • Radar Cross Sections
  • Radar Receivers
  • Radar Transmitters
  • Relative Motion
  • Scattering
  • Statistics
  • Two Dimensional

Readers

  • Acoustical Oceanography.
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Statistical inference.