{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/104600"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/104600","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Calibration of Jicamarca radar using F-region incoherent scatter for measurements of D-region backscatter RCS","abstract":"This thesis presents calibrated radar measurements of absolute backscatter cross sections of mesospheric radar echoes observed at the Jicamarca Radio Observatory in Perú. Radar system calibration is accomplished by simulating the propagation of transmitted and backscattered radio waves through the ionosphere and comparing the simulated power returns to the measurements. The forward model used in the calibration algorithm is based on magnetoionic theory, incoherent scatter radar theory, and antenna theory. Based on comparison with published results, as well as with crude estimates, we conclude that the forward model accurately represents propagation in the ionosphere, and that backscatter cross sections are consistent with power measurements at Jicamarca.","abstract_html":"This thesis presents calibrated radar measurements of absolute backscatter cross sections of mesospheric radar echoes observed at the Jicamarca Radio Observatory in Perú. Radar system calibration is accomplished by simulating the propagation of transmitted and backscattered radio waves through the ionosphere and comparing the simulated power returns to the measurements. The forward model used in the calibration algorithm is based on magnetoionic theory, incoherent scatter radar theory, and antenna theory. Based on comparison with published results, as well as with crude estimates, we conclude that the forward model accurately represents propagation in the ionosphere, and that backscatter cross sections are consistent with power measurements at Jicamarca.","abstract_has_math":false,"creators":["Akgiray, Ahmed H."],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S. (master's)","degree_level":"Thesis","degree_discipline":"Electrical and Computer Engineering","degree_department":null,"school":null,"contributors":["Kudeki, Erhan"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2019,"date_issued":"2019-07-16T20:40:50Z","date_published":"2019-07-16T20:40:50Z","updated_at":"2026-07-22T22:24:42Z","subjects":["Atmospheric remote sensing","Atmospheric modeling","Incoherent scatter radar","Radar calibration","Jicamarca Radio Observatory"],"languages":["en"],"rights":["Copyright 2007 by Ahmed H. Akgiray. All rights reserved"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/104600","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":["Akgiray, Ahmed H."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2019-07-16T20:40:50Z","10000-01-01","2007"]},{"key":"dc:type","label":"Dc Type","values":["Dissertation / Thesis","text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Electrical and Computer Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S. 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Based on comparison with published results, as well as with crude estimates, we conclude that the forward model accurately represents propagation in the ionosphere, and that backscatter cross sections are consistent with power measurements at Jicamarca.","U of I Only Restriction set for Item 111692 on 2019-07-16T20:31:38Z with date by astein@illinois.edu.","Submitted by Ayla Stein (astein@illinois.edu) on 2019-07-16T20:40:49Z No. of bitstreams: 1 5066418-Akgiray-2007.pdf: 47479594 bytes, checksum: f1ead3c5d9106227c147de1382fb0716 (MD5)","Made available in DSpace on 2019-07-16T20:40:50Z (GMT). No. of bitstreams: 1 5066418-Akgiray-2007.pdf: 47479594 bytes, checksum: f1ead3c5d9106227c147de1382fb0716 (MD5) Previous issue date: 2007","Embargo set by: Ayla Stein for item 111692 Lift date: 10000-01-01 Reason: Thesis was digitized by patron request. Patron was not the author of the Master's Thesis, so we do not have permission from the author to make it openly available.","Thesis was digitized by patron request. Patron was not the author of the Master's Thesis, so we do not have permission from the author to make it openly available.","Nation Science Foundation grant NSF ATM 04-22661","U of I Only"]},{"key":"dc:title","label":"Title","values":["Calibration of Jicamarca radar using F-region incoherent scatter for measurements of D-region backscatter RCS"]}]}],"canonical_facts":{"dc:contributor":["Kudeki, Erhan"],"dc:creator":["Akgiray, Ahmed H."],"dc:date":["2019-07-16T20:40:50Z","10000-01-01","2007"],"dc:description":["This thesis presents calibrated radar measurements of absolute backscatter cross sections of mesospheric radar echoes observed at the Jicamarca Radio Observatory in Perú. Radar system calibration is accomplished by simulating the propagation of transmitted and backscattered radio waves through the ionosphere and comparing the simulated power returns to the measurements. The forward model used in the calibration algorithm is based on magnetoionic theory, incoherent scatter radar theory, and antenna theory. Based on comparison with published results, as well as with crude estimates, we conclude that the forward model accurately represents propagation in the ionosphere, and that backscatter cross sections are consistent with power measurements at Jicamarca.","U of I Only Restriction set for Item 111692 on 2019-07-16T20:31:38Z with date by astein@illinois.edu.","Submitted by Ayla Stein (astein@illinois.edu) on 2019-07-16T20:40:49Z No. of bitstreams: 1 5066418-Akgiray-2007.pdf: 47479594 bytes, checksum: f1ead3c5d9106227c147de1382fb0716 (MD5)","Made available in DSpace on 2019-07-16T20:40:50Z (GMT). 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All rights reserved"],"dc:subject":["Atmospheric remote sensing","Atmospheric modeling","Incoherent scatter radar","Radar calibration","Jicamarca Radio Observatory"],"dc:title":["Calibration of Jicamarca radar using F-region incoherent scatter for measurements of D-region backscatter RCS"],"dc:type":["Dissertation / Thesis","text"],"thesis:degree_discipline":["Electrical and Computer Engineering"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S. (master's)"],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:24:42Z"}