Accession Number:

ADA190077

Title:

Polarimetric ISAR Imaging Using Either Measured or Calculated Transient Signatures.

Descriptive Note:

Technical rept.,

Corporate Author:

OHIO STATE UNIV COLUMBUS ELECTROSCIENCE LAB

Personal Author(s):

Report Date:

1987-10-01

Pagination or Media Count:

52.0

Abstract:

An approximation to generate ISAR images from electromagnetic scattering data is illustrated. An imaging algorithm which combines 1-D filtered time domain signals with aspect angle information is used to substitute for the 2-D Fourier transform. Polarimetric scattering characteristics of the targets are investigated. Images of the targets with different linear polarizations are generated and compared. Different sets of colors are assigned to different polarizations to illustrate the polarization dependence of the targets. Both measured and simulated data based on UTD are used with the same frequency window. Different scattering mechanisms observed on the measured and calculated images are discussed. Frequency scaling techniques are applied to combine measured data to widen the bandwidth. The work has concentrated on both geometrically simple and more complicated targets. Polarization is shown to be a useful tool in target identification with imaging.

Subject Categories:

  • Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE