Date of Award

3-21-2009

Document Type

Thesis

Degree Name

Master of Science in Electrical Engineering

Department

Department of Electrical and Computer Engineering

First Advisor

Peter J. Collins, PhD

Abstract

Radar Cross Section (RCS) imaging of a non-wide sense stationary signal poses significant problems in identifying scattering centers in the post processed radar- generated image. A non-wide sense stationary RCS is typically encountered when moving parts on the target impress a phase shift into the backscatter signal that is uncorrelated to the previous return pulse. When the Fourier transform of the phase shifted complex signal is taken, range and cross range information on scattering centers are misplaced. Time Frequency Representations (TFR) must be used to help locate these scattering centers so they can be properly treated to reduce the target’s RCS and increase its survivability. This thesis analyzes and compares various TFRs on non-wide sense stationary signals in hope of providing test centers with better methods for locating scattering centers under time variant conditions.

AFIT Designator

AFIT-GE-ENG-09-28

DTIC Accession Number

ADA500305

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