Non-linear frequency scaling algorithm for FMCW SAR data

Conference paper (2006)

Authors

A. Meta International Research Centre for Telecommunication and Radar
P. Hoogeboom Microwave Technology and Systems for Radar
L.P. Ligthart Microwave Technology and Systems for Radar
Research Group
International Research Centre for Telecommunication and Radar
More Info
expand_more

Published Date

2006

Language

Undefined/Unknown

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Research Group

International Research Centre for Telecommunication and Radar

Abstract

This paper presents a novel approach for processing data acquired with Frequency Modulated Continuous Wave (FMCW) dechirp-on-receive systmes by using a non-linear frequency scaling algorithm. The range frequency non-linearity correction, the Doppler shift induced by the continuous motion and the range migration removal are performed at the same time in the wavenumber domain with a very efficient solution. The cross-range focusing is then achieved with conventional matched filtering. Real data have been acquired with the FMCW SAR demonstrator system built at the Delft University of Technology. Stripmap images processed with the proposed method are presented in order to show the validity of the non-linear frequency scaling algorithm.