Correlating SAR (CoSAR): Concept, performance analysis, and mission concepts

Paco Lopez-Dekker, Francesco De Zan, Marc Rodriguez-Cassola, Gerhard Krieger

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

1 Citation (Scopus)

Abstract

Synthetic Aperture Radar (SAR) systems construct the equivalent to a very long antenna array by coherently combining radar echoes of a scene acquired along the trajectory of a space- or airborne radar. A key underlying assumption, or requirement, is that the observed scene stays coherent during the acquisition. This is true for static scenes, in particular when the acquisition time is kept short. For decorrelating targets, the azimuth resolution achievable by a SAR system is limited by the coherence time of the targets, τcoh, which limits the length of the synthetic aperture to the product of τcoh and the azimuth velocity of the system. Typical cases where this can be an issue is for the observation of water surfaces, where the coherence times at microwave frequencies are typically well below 100 ms, which makes them short compared to the typically associated integration times.

Original languageEnglish
Title of host publication2013 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2013 - Proceedings
Pages4459-4462
Number of pages4
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event2013 33rd IEEE International Geoscience and Remote Sensing Symposium - Melbourne, VIC, Australia
Duration: 21 Jul 201326 Jul 2013
Conference number: 33

Conference

Conference2013 33rd IEEE International Geoscience and Remote Sensing Symposium
Abbreviated titleIGARSS 2013
CountryAustralia
CityMelbourne, VIC
Period21/07/1326/07/13

Fingerprint Dive into the research topics of 'Correlating SAR (CoSAR): Concept, performance analysis, and mission concepts'. Together they form a unique fingerprint.

Cite this