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Estimation of target motion parameters from dual-channel SAR echoes via time-frequency analysis

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1 Author(s)
Lombardo, P. ; INFOCOM Dept., Rome Univ., Italy

The paper deals with the estimation of the target motion parameters from a dual-channel SAR system. A space-time filter is required before the estimation to cancel the strong clutter echoes. It is shown that this filter does not affect the estimation based on Wigner-Ville distribution and Wigner-Hough transform (WHT) except in the presence of targets with high along-track velocity, as for fast moving objects with trajectory normal to the SAR path. In this case the cancellation filter produces an ambiguity in the WHT. A simple processing technique is proposed to compensate for this effect, which can be implemented in terms of a combination of WHTs

Published in:

Radar Conference, 1997., IEEE National

Date of Conference:

13-15 May 1997