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

Virginie Kubica, Xavier Neyt

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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Abstract

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.

Original languageEnglish
Title of host publicationEUSAR 2012; 9th European Conference on Synthetic Aperture Radar
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages275-278
Number of pages4
ISBN (Electronic)9783800734047
Publication statusPublished - 2012
Event9th European Conference on Synthetic Aperture Radar, EUSAR 2012 - Nuremberg, Germany
Duration: 23 Apr 201226 Apr 2012

Publication series

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

Conference

Conference9th European Conference on Synthetic Aperture Radar, EUSAR 2012
Country/TerritoryGermany
CityNuremberg
Period23/04/1226/04/12

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