{"id":"https://openalex.org/W3030850377","doi":"https://doi.org/10.3390/rs12111773","title":"Technique for Concurrent Internal Calibration during Data Acquisition for SAR Systems","display_name":"Technique for Concurrent Internal Calibration during Data Acquisition for SAR Systems","publication_year":2020,"publication_date":"2020-06-01","ids":{"openalex":"https://openalex.org/W3030850377","doi":"https://doi.org/10.3390/rs12111773","mag":"3030850377"},"language":"en","primary_location":{"id":"doi:10.3390/rs12111773","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs12111773","pdf_url":"https://www.mdpi.com/2072-4292/12/11/1773/pdf?version=1590999812","source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Remote Sensing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/2072-4292/12/11/1773/pdf?version=1590999812","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5006524726","display_name":"Jens Reimann","orcid":"https://orcid.org/0000-0002-0650-9073"},"institutions":[{"id":"https://openalex.org/I2898391981","display_name":"Deutsches Zentrum f\u00fcr Luft- und Raumfahrt e. V. (DLR)","ror":"https://ror.org/04bwf3e34","country_code":"DE","type":"facility","lineage":["https://openalex.org/I1305996414","https://openalex.org/I2898391981"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"Jens Reimann","raw_affiliation_strings":["Deutsches Zentrum f\u00fcr Luft- und Raumfahrt e.V., Institut f\u00fcr Hochfrequenztechnik und Radarsysteme, 82234 We\u00dfling, Germany"],"affiliations":[{"raw_affiliation_string":"Deutsches Zentrum f\u00fcr Luft- und Raumfahrt e.V., Institut f\u00fcr Hochfrequenztechnik und Radarsysteme, 82234 We\u00dfling, Germany","institution_ids":["https://openalex.org/I2898391981"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5014711926","display_name":"Marco Schwerdt","orcid":"https://orcid.org/0000-0002-0045-3726"},"institutions":[{"id":"https://openalex.org/I2898391981","display_name":"Deutsches Zentrum f\u00fcr Luft- und Raumfahrt e. V. (DLR)","ror":"https://ror.org/04bwf3e34","country_code":"DE","type":"facility","lineage":["https://openalex.org/I1305996414","https://openalex.org/I2898391981"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Marco Schwerdt","raw_affiliation_strings":["Deutsches Zentrum f\u00fcr Luft- und Raumfahrt e.V., Institut f\u00fcr Hochfrequenztechnik und Radarsysteme, 82234 We\u00dfling, Germany"],"affiliations":[{"raw_affiliation_string":"Deutsches Zentrum f\u00fcr Luft- und Raumfahrt e.V., Institut f\u00fcr Hochfrequenztechnik und Radarsysteme, 82234 We\u00dfling, Germany","institution_ids":["https://openalex.org/I2898391981"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5006524726"],"corresponding_institution_ids":["https://openalex.org/I2898391981"],"apc_list":{"value":2500,"currency":"CHF","value_usd":2707},"apc_paid":{"value":1698,"currency":"EUR","value_usd":1831},"fwci":15.7135,"has_fulltext":false,"cited_by_count":13,"citation_normalized_percentile":{"value":0.98301472,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":91,"max":97},"biblio":{"volume":"12","issue":"11","first_page":"1773","last_page":"1773"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10801","display_name":"Synthetic Aperture Radar (SAR) Applications and Techniques","score":0.9998999834060669,"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"}},"topics":[{"id":"https://openalex.org/T10801","display_name":"Synthetic Aperture Radar (SAR) Applications and Techniques","score":0.9998999834060669,"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"}},{"id":"https://openalex.org/T11038","display_name":"Advanced SAR Imaging Techniques","score":0.9998999834060669,"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"}},{"id":"https://openalex.org/T11312","display_name":"Soil Moisture and Remote Sensing","score":0.9944999814033508,"subfield":{"id":"https://openalex.org/subfields/2305","display_name":"Environmental Engineering"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7414880990982056},{"id":"https://openalex.org/keywords/calibration","display_name":"Calibration","score":0.6906462907791138},{"id":"https://openalex.org/keywords/interrupt","display_name":"Interrupt","score":0.6161487102508545},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.5842387676239014},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.49157342314720154},{"id":"https://openalex.org/keywords/data-acquisition","display_name":"Data acquisition","score":0.4805615246295929},{"id":"https://openalex.org/keywords/signal","display_name":"SIGNAL (programming language)","score":0.4750490188598633},{"id":"https://openalex.org/keywords/azimuth","display_name":"Azimuth","score":0.441081166267395},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.35556575655937195},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.33054274320602417},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.11061987280845642},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.10233303904533386},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.07784885168075562}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7414880990982056},{"id":"https://openalex.org/C165838908","wikidata":"https://www.wikidata.org/wiki/Q736777","display_name":"Calibration","level":2,"score":0.6906462907791138},{"id":"https://openalex.org/C41661131","wikidata":"https://www.wikidata.org/wiki/Q220764","display_name":"Interrupt","level":3,"score":0.6161487102508545},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.5842387676239014},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.49157342314720154},{"id":"https://openalex.org/C163985040","wikidata":"https://www.wikidata.org/wiki/Q1172399","display_name":"Data acquisition","level":2,"score":0.4805615246295929},{"id":"https://openalex.org/C2779843651","wikidata":"https://www.wikidata.org/wiki/Q7390335","display_name":"SIGNAL (programming language)","level":2,"score":0.4750490188598633},{"id":"https://openalex.org/C159737794","wikidata":"https://www.wikidata.org/wiki/Q124274","display_name":"Azimuth","level":2,"score":0.441081166267395},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.35556575655937195},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.33054274320602417},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.11061987280845642},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.10233303904533386},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.07784885168075562},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.3390/rs12111773","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs12111773","pdf_url":"https://www.mdpi.com/2072-4292/12/11/1773/pdf?version=1590999812","source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Remote Sensing","raw_type":"journal-article"},{"id":"pmh:oai:elib.dlr.de:137655","is_oa":false,"landing_page_url":"https://doi.org/10.3390/rs12111773>.","pdf_url":null,"source":{"id":"https://openalex.org/S4377196266","display_name":"elib (German Aerospace Center)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I2898391981","host_organization_name":"Deutsches Zentrum f\u00fcr Luft- und Raumfahrt e. V. (DLR)","host_organization_lineage":["https://openalex.org/I2898391981"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":null,"raw_type":"PeerReviewed"},{"id":"pmh:oai:doaj.org/article:e275f6fa369345e789d49fb5a7097281","is_oa":true,"landing_page_url":"https://doaj.org/article/e275f6fa369345e789d49fb5a7097281","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Remote Sensing, Vol 12, Iss 11, p 1773 (2020)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/2072-4292/12/11/1773/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/rs12111773","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Remote Sensing","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/rs12111773","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs12111773","pdf_url":"https://www.mdpi.com/2072-4292/12/11/1773/pdf?version=1590999812","source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Remote Sensing","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3030850377.pdf","grobid_xml":"https://content.openalex.org/works/W3030850377.grobid-xml"},"referenced_works_count":9,"referenced_works":["https://openalex.org/W23345190","https://openalex.org/W2025410176","https://openalex.org/W2046272636","https://openalex.org/W2145525623","https://openalex.org/W2148662796","https://openalex.org/W2151007095","https://openalex.org/W2152236056","https://openalex.org/W2157664157","https://openalex.org/W2333786694"],"related_works":["https://openalex.org/W4288898221","https://openalex.org/W2358308054","https://openalex.org/W2391783641","https://openalex.org/W2109690896","https://openalex.org/W4231875098","https://openalex.org/W4230529130","https://openalex.org/W2391365542","https://openalex.org/W2361731841","https://openalex.org/W2386367690","https://openalex.org/W4243198198"],"abstract_inverted_index":{"Nowadays,":[0],"stringent":[1],"requirements":[2,16],"for":[3,107,205],"the":[4,23,27,42,48,54,73,99,103,132,146,159,167,177,188,206],"quality":[5,15],"of":[6,47,66,72,158,193],"SAR":[7,55,118,160],"data":[8,56,87,109,137,168,186],"products":[9],"exist.":[10],"The":[11,31,76],"radiometric":[12],"and":[13,61,69,84,181],"image":[14,74,161],"can":[17,163],"only":[18,82,155],"be":[19,164],"fulfilled":[20],"by":[21,26,139],"knowing":[22],"disturbances":[24,40],"caused":[25],"radar":[28],"hardware":[29],"itself.":[30],"internal":[32,50,59,124,133,208],"calibration":[33,51,60,77,92,125,134,143,209],"is":[34,78,127,175,197],"a":[35,64,70,86,141],"mechanism":[36],"to":[37,97,202],"estimate":[38,98],"these":[39,90],"from":[41,166,187],"real":[43,185],"hardware.":[44],"Unfortunately,":[45],"most":[46],"current":[49],"schemes":[52],"interrupt":[53],"acquisition":[57,105,138],"during":[58,102,135],"hence":[62],"cause":[63],"loss":[65],"azimuth":[67],"samples":[68],"degradation":[71,157],"quality.":[75],"thus":[79],"often":[80],"performed":[81],"before":[83],"after":[85],"take.":[88],"However,":[89],"two":[91],"events":[93],"are":[94],"hardly":[95],"sufficient":[96],"instrument":[100],"parameters":[101],"whole":[104],"especially":[106],"long":[108],"takes,":[110],"which":[111,129],"will":[112],"become":[113],"more":[114],"common":[115],"in":[116],"future":[117],"system.":[119],"In":[120],"this":[121],"paper,":[122],"an":[123],"scheme":[126,196],"introduced":[128],"allows":[130],"performing":[131],"nominal":[136],"injecting":[140],"coded":[142],"signal":[144,153,171],"into":[145],"receiver":[147],"with":[148,200],"very":[149],"low":[150],"power.":[151],"This":[152,173],"causes":[154],"minor":[156],"but":[162],"retrieved":[165],"using":[169],"adequate":[170],"processing.":[172],"technique":[174],"described,":[176],"theoretical":[178],"performance":[179],"estimated,":[180],"finally":[182],"demonstrated":[183],"on":[184],"TerraSAR-X":[189],"mission.":[190],"A":[191],"selection":[192],"possible":[194],"coding":[195],"also":[198],"analyzed":[199],"respect":[201],"their":[203],"suitability":[204],"proposed":[207],"scheme.":[210]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":4},{"year":2021,"cited_by_count":3}],"updated_date":"2026-03-10T16:38:18.471706","created_date":"2025-10-10T00:00:00"}