{"id":"https://openalex.org/W1978461865","doi":"https://doi.org/10.1109/igarss.2015.7326615","title":"Polarimetric calibration of PI-SAR2: Experimental results of 2013 to 2015 observations","display_name":"Polarimetric calibration of PI-SAR2: Experimental results of 2013 to 2015 observations","publication_year":2015,"publication_date":"2015-07-01","ids":{"openalex":"https://openalex.org/W1978461865","doi":"https://doi.org/10.1109/igarss.2015.7326615","mag":"1978461865"},"language":"en","primary_location":{"id":"doi:10.1109/igarss.2015.7326615","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2015.7326615","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5055862375","display_name":"Makoto Satake","orcid":"https://orcid.org/0000-0002-2546-4798"},"institutions":[{"id":"https://openalex.org/I90023481","display_name":"National Institute of Information and Communications Technology","ror":"https://ror.org/016bgq349","country_code":"JP","type":"facility","lineage":["https://openalex.org/I90023481"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Makoto Satake","raw_affiliation_strings":["Applied Electromagnetic Research Institute, National Institute of Information and Communications Technology (NICT), Japan"],"affiliations":[{"raw_affiliation_string":"Applied Electromagnetic Research Institute, National Institute of Information and Communications Technology (NICT), Japan","institution_ids":["https://openalex.org/I90023481"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110480568","display_name":"Jyunpei Uemoto","orcid":null},"institutions":[{"id":"https://openalex.org/I90023481","display_name":"National Institute of Information and Communications Technology","ror":"https://ror.org/016bgq349","country_code":"JP","type":"facility","lineage":["https://openalex.org/I90023481"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Jyunpei Uemoto","raw_affiliation_strings":["Applied Electromagnetic Research Institute, National Institute of Information and Communications Technology (NICT), Japan"],"affiliations":[{"raw_affiliation_string":"Applied Electromagnetic Research Institute, National Institute of Information and Communications Technology (NICT), Japan","institution_ids":["https://openalex.org/I90023481"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102997157","display_name":"Takeshi Matsuoka","orcid":"https://orcid.org/0000-0003-0572-8300"},"institutions":[{"id":"https://openalex.org/I90023481","display_name":"National Institute of Information and Communications Technology","ror":"https://ror.org/016bgq349","country_code":"JP","type":"facility","lineage":["https://openalex.org/I90023481"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Takeshi Matsuoka","raw_affiliation_strings":["Applied Electromagnetic Research Institute, National Institute of Information and Communications Technology (NICT), Japan"],"affiliations":[{"raw_affiliation_string":"Applied Electromagnetic Research Institute, National Institute of Information and Communications Technology (NICT), Japan","institution_ids":["https://openalex.org/I90023481"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5044449720","display_name":"Tatsuharu Kobayashi","orcid":null},"institutions":[{"id":"https://openalex.org/I90023481","display_name":"National Institute of Information and Communications Technology","ror":"https://ror.org/016bgq349","country_code":"JP","type":"facility","lineage":["https://openalex.org/I90023481"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Tatsuharu Kobayashi","raw_affiliation_strings":["Applied Electromagnetic Research Institute, National Institute of Information and Communications Technology (NICT), Japan"],"affiliations":[{"raw_affiliation_string":"Applied Electromagnetic Research Institute, National Institute of Information and Communications Technology (NICT), Japan","institution_ids":["https://openalex.org/I90023481"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103357240","display_name":"Shoichiro Kojima","orcid":null},"institutions":[{"id":"https://openalex.org/I90023481","display_name":"National Institute of Information and Communications Technology","ror":"https://ror.org/016bgq349","country_code":"JP","type":"facility","lineage":["https://openalex.org/I90023481"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Shoichiro Kojima","raw_affiliation_strings":["Applied Electromagnetic Research Institute, National Institute of Information and Communications Technology (NICT), Japan"],"affiliations":[{"raw_affiliation_string":"Applied Electromagnetic Research Institute, National Institute of Information and Communications Technology (NICT), Japan","institution_ids":["https://openalex.org/I90023481"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5060717262","display_name":"Toshihiko Umehara","orcid":null},"institutions":[{"id":"https://openalex.org/I90023481","display_name":"National Institute of Information and Communications Technology","ror":"https://ror.org/016bgq349","country_code":"JP","type":"facility","lineage":["https://openalex.org/I90023481"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Toshihiko Umehara","raw_affiliation_strings":["Applied Electromagnetic Research Institute, National Institute of Information and Communications Technology (NICT), Japan"],"affiliations":[{"raw_affiliation_string":"Applied Electromagnetic Research Institute, National Institute of Information and Communications Technology (NICT), Japan","institution_ids":["https://openalex.org/I90023481"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5103393489","display_name":"Toshifumi Moriyama","orcid":null},"institutions":[{"id":"https://openalex.org/I43777268","display_name":"Nagasaki University","ror":"https://ror.org/058h74p94","country_code":"JP","type":"education","lineage":["https://openalex.org/I43777268"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Toshifumi Moriyama","raw_affiliation_strings":["Graduate School of Engineering, Nagasaki University, Japan","Graduate school of engineering, Nagasaki University, JAPAN"],"affiliations":[{"raw_affiliation_string":"Graduate School of Engineering, Nagasaki University, Japan","institution_ids":["https://openalex.org/I43777268"]},{"raw_affiliation_string":"Graduate school of engineering, Nagasaki University, JAPAN","institution_ids":["https://openalex.org/I43777268"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5055862375"],"corresponding_institution_ids":["https://openalex.org/I90023481"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.06581654,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":"89 b","issue":"397","first_page":"3655","last_page":"3658"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13177","display_name":"Geological and Geophysical Studies","score":0.9519000053405762,"subfield":{"id":"https://openalex.org/subfields/1907","display_name":"Geology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T13177","display_name":"Geological and Geophysical Studies","score":0.9519000053405762,"subfield":{"id":"https://openalex.org/subfields/1907","display_name":"Geology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10995","display_name":"Methane Hydrates and Related Phenomena","score":0.9488000273704529,"subfield":{"id":"https://openalex.org/subfields/2304","display_name":"Environmental Chemistry"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13200","display_name":"Spacecraft and Cryogenic Technologies","score":0.9168999791145325,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/calibration","display_name":"Calibration","score":0.7081942558288574},{"id":"https://openalex.org/keywords/polarimetry","display_name":"Polarimetry","score":0.5331242680549622},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.45394542813301086},{"id":"https://openalex.org/keywords/pi","display_name":"Pi","score":0.4370410740375519},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.40796369314193726},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.27899169921875},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.1686382293701172},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.1444392204284668},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.1406211256980896}],"concepts":[{"id":"https://openalex.org/C165838908","wikidata":"https://www.wikidata.org/wiki/Q736777","display_name":"Calibration","level":2,"score":0.7081942558288574},{"id":"https://openalex.org/C28493345","wikidata":"https://www.wikidata.org/wiki/Q899381","display_name":"Polarimetry","level":3,"score":0.5331242680549622},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.45394542813301086},{"id":"https://openalex.org/C53009064","wikidata":"https://www.wikidata.org/wiki/Q167","display_name":"Pi","level":2,"score":0.4370410740375519},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.40796369314193726},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.27899169921875},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.1686382293701172},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.1444392204284668},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.1406211256980896},{"id":"https://openalex.org/C191486275","wikidata":"https://www.wikidata.org/wiki/Q210028","display_name":"Scattering","level":2,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/igarss.2015.7326615","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2015.7326615","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)","raw_type":"proceedings-article"},{"id":"mag:2727507170","is_oa":false,"landing_page_url":"https://www.ieice.org/ken/paper/20150122vBVZ/eng/","pdf_url":null,"source":{"id":"https://openalex.org/S4306512848","display_name":"IEICE Technical Report; IEICE Tech. Rep.","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":"IEICE Technical Report; IEICE Tech. Rep.","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":4,"referenced_works":["https://openalex.org/W1566880740","https://openalex.org/W2075475458","https://openalex.org/W2145754061","https://openalex.org/W6634052422"],"related_works":["https://openalex.org/W2748952813","https://openalex.org/W2030762054","https://openalex.org/W3157618815","https://openalex.org/W2401345448","https://openalex.org/W255820224","https://openalex.org/W2278807000","https://openalex.org/W2964228179","https://openalex.org/W2628590989","https://openalex.org/W2742629407","https://openalex.org/W279885097"],"abstract_inverted_index":{"An":[0],"X-band":[1],"airborne":[2],"SAR,":[3],"Pi-SAR2,":[4],"has":[5,27],"been":[6],"developed":[7],"by":[8],"NICT.":[9],"It":[10],"can":[11],"make":[12],"polarimetric":[13,55],"and":[14],"interferometric":[15],"observation":[16,59],"with":[17],"very":[18],"high":[19],"spatial":[20],"resolution":[21],"of":[22],"0.3m.":[23],"Since":[24],"2013,":[25],"NICT":[26],"carried":[28],"out":[29],"collaborating":[30],"observations":[31],"on":[32],"research":[33],"proposals":[34],"selected":[35],"for":[36],"the":[37],"Pi-SAR2":[38],"Research":[39],"Announcement.":[40],"Polarimetric":[41],"SAR":[42],"data":[43],"analysis":[44],"is":[45],"a":[46],"key":[47],"issue":[48],"among":[49],"them,":[50],"therefore":[51],"we":[52],"have":[53],"made":[54],"calibration":[56],"in":[57],"each":[58],"period.":[60]},"counts_by_year":[{"year":2023,"cited_by_count":1}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}