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dc.contributor.authorCorbella, I.-
dc.contributor.authorTorres, F.-
dc.contributor.authorDuffo, N.-
dc.contributor.authorDurán, Israel-
dc.contributor.authorGonzález Gambau, Verónica-
dc.contributor.authorOliva, R.-
dc.contributor.authorClosa, Josep-
dc.contributor.authorMartín-Neira, Manuel-
dc.date.accessioned2019-08-21T08:43:47Z-
dc.date.available2019-08-21T08:43:47Z-
dc.date.issued2019-06-
dc.identifierdoi: 10.1109/JSTARS.2018.2885576-
dc.identifierissn: 1939-1404-
dc.identifiere-issn: 2151-1535-
dc.identifier.citationIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 12(6): 1633-1646 (2019)-
dc.identifier.urihttp://hdl.handle.net/10261/188695-
dc.description14 pages, 18 figures, 3 tables.-- © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works-
dc.description.abstractThe microwave imaging radiometer with aperture synthesis (MIRAS) is formed by 69 total power radiometers, of which three are the noise-injection type. Their calibration is reviewed on the basis of the data gathered during more than eight years of operation. Internally calibrated gain and offset corrections with improved temporal stability are presented. New front-end loss characterization with lower seasonal dependence originated from external temperature swings is also proposed. Finally, a methodology to validate the external calibrations, with the instrument pointing to the cold sky, is developed. It seems to indicate that the change of orientation of the instrument, with associated thermal variations, may induce small changes in the radiometer front-end losses, thus introducing calibration errors-
dc.publisherInstitute of Electrical and Electronics Engineers-
dc.rightsopenAccessen_EN
dc.subjectSMOS-
dc.subjectL-band radiometry-
dc.subjectInterferometric synthetic aperture radiometry-
dc.subjectRadiometer calibration-
dc.titleCalibration of the MIRAS Radiometers-
dc.typeartículo-
dc.identifier.doihttp://dx.doi.org/10.1109/JSTARS.2018.2885576-
dc.relation.publisherversionhttps://doi.org/10.1109/JSTARS.2018.2885576-
dc.date.updated2019-08-21T08:43:48Z-
dc.description.versionPeer Reviewed-
dc.language.rfc3066eng-
dc.relation.csic-
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