SAR Imaging Using Fully Random Bandlimited Signals

Authors

Dmitriy S. Garmatyuk, University of Nebraska-Lincoln
Ram M. Narayanan, University of Nebraska-Lincoln

Document Type

Article

Date of this Version

2000

Comments

Published in IEEE Antennas and Propagation Society International Symposium, 2000. Volume 4, pp. 1948–1951; DOI: 10.1109/APS.2000.874872 Copyright 2000 IEEE. Used by permission.

Abstract

A coherent ultrawideband (UWB) random noise synthetic aperture radar (SAR) has been developed and tested at the University of Nebraska. It has been experimentally shown that this type of radar is capable of extracting the phase and the amplitude of the backscattered signal, thus enabling us to create target profiles in the frequency domain. The use of fully random waveforms (bandlimited noise) as the transmit signal is analyzed in this paper. A UWB signal model is developed and radar signal processing is simulated to yield statistical characteristics of image formation using stochastic waveforms. The influence of UWB signal characteristics on the image quality is estimated and represented graphically.