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dc.contributor.authorBlackwell, William J.
dc.contributor.authorBishop, Rebecca
dc.contributor.authorCahoy, Kerri
dc.contributor.authorCrail, Clayton
dc.contributor.authorCucurull, Lidia
dc.contributor.authorDiLiberto, Michael
dc.contributor.authorErickson, Neal
dc.contributor.authorFish, Chad
dc.contributor.authorShu-peng Ho, Chad
dc.contributor.authorLeslie, R. Vincent
dc.contributor.authorMilstein, Adam B.
dc.contributor.authorOsaretin, Idahosa A.
dc.contributor.authorCohen, Brian S.
dc.contributor.authorDave, Pratik K.
dc.date.accessioned2015-06-29T15:06:13Z
dc.date.available2015-06-29T15:06:13Z
dc.date.issued2014-05
dc.date.submitted2013-11
dc.identifier.issn0196-2892
dc.identifier.issn1558-0644
dc.identifier.urihttp://hdl.handle.net/1721.1/97547
dc.description.abstractWe present a new high-fidelity method of calibrating a cross-track scanning microwave radiometer using Global Positioning System (GPS) radio occultation (GPSRO) measurements. The radiometer and GPSRO receiver periodically observe the same volume of atmosphere near the Earth's limb, and these overlapping measurements are used to calibrate the radiometer. Performance analyses show that absolute calibration accuracy better than 0.25 K is achievable for temperature sounding channels in the 50-60-GHz band for a total-power radiometer using a weakly coupled noise diode for frequent calibration and proximal GPSRO measurements for infrequent (approximately daily) calibration. The method requires GPSRO penetration depth only down to the stratosphere, thus permitting the use of a relatively small GPS antenna. Furthermore, only coarse spacecraft angular knowledge (approximately one degree rms) is required for the technique, as more precise angular knowledge can be retrieved directly from the combined radiometer and GPSRO data, assuming that the radiometer angular sampling is uniform. These features make the technique particularly well suited for implementation on a low-cost CubeSat hosting both radiometer and GPSRO receiver systems on the same spacecraft. We describe a validation platform for this calibration method, the Microwave Radiometer Technology Acceleration (MiRaTA) CubeSat, currently in development for the National Aeronautics and Space Administration (NASA) Earth Science Technology Office. MiRaTA will fly a multiband radiometer and the Compact TEC/Atmosphere GPS Sensor in 2015.en_US
dc.description.sponsorshipUnited States. Dept. of Defense. Assistant Secretary of Defense for Research & Engineering (United States. Air Force Contract FA8721-05-C-0002)en_US
dc.language.isoen_US
dc.relation.isversionofhttp://dx.doi.org/10.1109/tgrs.2013.2296558en_US
dc.rightsCreative Commons Attribution-Noncommercial-Share Alikeen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/en_US
dc.sourceProf. Cahoy via Barbara Williamsen_US
dc.titleRadiometer Calibration Using Colocated GPS Radio Occultation Measurementsen_US
dc.typeArticleen_US
dc.identifier.citationBlackwell, William J., Rebecca Bishop, Kerri Cahoy, Brian Cohen, Clayton Crail, Lidia Cucurull, Pratik Dave, et al. “Radiometer Calibration Using Colocated GPS Radio Occultation Measurements.” IEEE Transactions on Geoscience and Remote Sensing 52, no. 10 (October 2014): 6423–6433.en_US
dc.contributor.departmentLincoln Laboratoryen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Aeronautics and Astronauticsen_US
dc.contributor.mitauthorBlackwell, William J.en_US
dc.contributor.mitauthorCahoy, Kerrien_US
dc.contributor.mitauthorCohen, Brian S.en_US
dc.contributor.mitauthorCrail, Claytonen_US
dc.contributor.mitauthorDave, Pratik K.en_US
dc.contributor.mitauthorDiLiberto, Michaelen_US
dc.contributor.mitauthorLeslie, R. Vincenten_US
dc.contributor.mitauthorMilstein, Adam B.en_US
dc.contributor.mitauthorOsaretin, Idahosa A.en_US
dc.relation.journalIEEE Transactions on Geoscience and Remote Sensingen_US
dc.eprint.versionAuthor's final manuscripten_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsBlackwell, William J.; Bishop, Rebecca; Cahoy, Kerri; Cohen, Brian; Crail, Clayton; Cucurull, Lidia; Dave, Pratik; DiLiberto, Michael; Erickson, Neal; Fish, Chad; Shu-peng Ho, Chad; Leslie, R. Vincent; Milstein, Adam B.; Osaretin, Idahosa A.en_US
dc.identifier.orcidhttps://orcid.org/0000-0002-7791-5124
dc.identifier.orcidhttps://orcid.org/0000-0001-5630-6840
mit.licenseOPEN_ACCESS_POLICYen_US
mit.metadata.statusComplete


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