{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/107861"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/107861","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Mesospheric wind estimation with the Jicamarca MST radar","abstract":"Jicamarca radar located in Peru is used to probe the equatorial mesosphere by scattering 50 MHz pulse transmissions from mesospheric turbulent layers; the pulse returns are detected by the radar antenna and subsequently spectral analyzed. This thesis describes the Jicamarca radar con figuration used for mesospheric Doppler wind measurements as well as the data processing procedure used to obtain wind estimates from spectral data. The procedure was initially developed by Sheth et al. [2006] and improved by Smith [2014], but it still gave biased wind estimates when the sidelobe power levels exceeded the mainlobe power detected by the antenna beams used in the measurements. We describe a clustering-based method developed to detect and remove the sidelobe components of the return signals to obtain bias-free wind estimates.","abstract_html":"Jicamarca radar located in Peru is used to probe the equatorial mesosphere by scattering 50 MHz pulse transmissions from mesospheric turbulent layers; the pulse returns are detected by the radar antenna and subsequently spectral analyzed. This thesis describes the Jicamarca radar con figuration used for mesospheric Doppler wind measurements as well as the data processing procedure used to obtain wind estimates from spectral data. The procedure was initially developed by Sheth et al. [2006] and improved by Smith [2014], but it still gave biased wind estimates when the sidelobe power levels exceeded the mainlobe power detected by the antenna beams used in the measurements. We describe a clustering-based method developed to detect and remove the sidelobe components of the return signals to obtain bias-free wind estimates.","abstract_has_math":false,"creators":["Lee, Kiwook"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Electrical & Computer Engr","degree_department":null,"school":null,"contributors":["Kudeki, Erhan"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2020,"date_issued":"2020-08-26T21:54:08Z","date_published":"2020-08-26T21:54:08Z","updated_at":"2026-07-22T22:24:47Z","subjects":["Radar remote sensing","MST winds measurement","Jicamarca"],"languages":["en"],"rights":["Copyright 2020 Kiwook Lee"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/107861","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Kudeki, Erhan"]},{"key":"dc:creator","label":"Author","values":["Lee, Kiwook"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2020-08-26T21:54:08Z","2020-03-17","2020-05"]},{"key":"dc:type","label":"Dc Type","values":["text","Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Electrical & Computer Engr"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Radar remote sensing","MST winds measurement","Jicamarca"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2020 Kiwook Lee"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/107861"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Jicamarca radar located in Peru is used to probe the equatorial mesosphere by scattering 50 MHz pulse transmissions from mesospheric turbulent layers; the pulse returns are detected by the radar antenna and subsequently spectral analyzed. This thesis describes the Jicamarca radar con figuration used for mesospheric Doppler wind measurements as well as the data processing procedure used to obtain wind estimates from spectral data. The procedure was initially developed by Sheth et al. [2006] and improved by Smith [2014], but it still gave biased wind estimates when the sidelobe power levels exceeded the mainlobe power detected by the antenna beams used in the measurements. We describe a clustering-based method developed to detect and remove the sidelobe components of the return signals to obtain bias-free wind estimates.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2020-08-25 without embargo terms","The student, Kiwook Lee, accepted the attached license on 2020-03-16 at 17:28.","The student, Kiwook Lee, submitted this Thesis for approval on 2020-03-16 at 17:40.","This Thesis was approved for publication on 2020-03-17 at 09:07.","DSpace SAF Submission Ingestion Package generated from Vireo submission #14904 on 2020-08-25 at 17:05:54","Made available in DSpace on 2020-08-26T21:54:08Z (GMT). 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The procedure was initially developed by Sheth et al. [2006] and improved by Smith [2014], but it still gave biased wind estimates when the sidelobe power levels exceeded the mainlobe power detected by the antenna beams used in the measurements. We describe a clustering-based method developed to detect and remove the sidelobe components of the return signals to obtain bias-free wind estimates.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2020-08-25 without embargo terms","The student, Kiwook Lee, accepted the attached license on 2020-03-16 at 17:28.","The student, Kiwook Lee, submitted this Thesis for approval on 2020-03-16 at 17:40.","This Thesis was approved for publication on 2020-03-17 at 09:07.","DSpace SAF Submission Ingestion Package generated from Vireo submission #14904 on 2020-08-25 at 17:05:54","Made available in DSpace on 2020-08-26T21:54:08Z (GMT). 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