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A ML multichannel ATI-SAR technique for measuring ocean surface velocities

Lombardini, F; Griffiths, HD; Gini, F; (1998) A ML multichannel ATI-SAR technique for measuring ocean surface velocities. In: (pp. pp. 778-782). IEEE Computer Society: Piscataway, US.

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Abstract

Conventional along-track interferometric (ATI) synthetic aperture radars (SAR) derive the ocean surface velocity from an estimate of the phase difference between the SAR processed echoes received from two displaced phase centres with a single time-lag. A maximum likelihood (ML) algorithm is proposed to process the multi-channel SAR data from an array of phase centres with multiple time-lags. The new technique provides sensibly better estimation accuracy than the conventional one. Moreover, it provides unambiguous velocity retrieval and flexibility to ocean coherence time.

Type: Proceedings paper
Title: A ML multichannel ATI-SAR technique for measuring ocean surface velocities
ISBN: 0780350456
DOI: 10.1109/OCEANS.1998.724344
Publisher version: http://dx.doi.org/10.1109/OCEANS.1998.724344
Keywords: France
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: http://discovery.ucl.ac.uk/id/eprint/33482
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