Passive SAR imaging using the ASAR instrument of ENVISAT as transmitter of opportunity.

Virginie Kubica, Xavier Neyt

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Résumé

The ASAR instrument of ENVISAT can operate in ImageMode (stripmap-likemode) and in ScanSAR mode (burst mode) in which five sub-swaths are used to image large swaths at the expense of azimuth resolution. The poor azimuth resolution of the ScanSAR mode in monostatic configuration can be enhanced in the case of a bistatic configuration with a receiver close to the imaged area by using the sidelobe emissions of the beams illuminating the adjacent sub-swaths in addition to the mainlobe emissions of the beam illuminating the considered sub-swath. In this paper, we describe the exploitation of the low azimuth resolution ScanSAR modes of the ASAR instrument and assess how the azimuth resolution can be improved from the nominal azimuth resolution based on real data acquired by a ground-based receiver.

langue originaleAnglais
titreEUSAR 2012; 9th European Conference on Synthetic Aperture Radar
EditeurInstitute of Electrical and Electronics Engineers Inc.
Pages275-278
Nombre de pages4
ISBN (Electronique)9783800734047
étatPublié - 2012
Evénement9th European Conference on Synthetic Aperture Radar, EUSAR 2012 - Nuremberg, Allemagne
Durée: 23 avr. 201226 avr. 2012

Série de publications

NomProceedings of the European Conference on Synthetic Aperture Radar, EUSAR
Volume2012-April
ISSN (imprimé)2197-4403

Une conférence

Une conférence9th European Conference on Synthetic Aperture Radar, EUSAR 2012
Pays/TerritoireAllemagne
La villeNuremberg
période23/04/1226/04/12

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