{"id":"https://openalex.org/W2890330337","doi":"https://doi.org/10.1109/lgrs.2018.2867723","title":"Multifrequency Subpulse SAR: Exploiting Chirp Bandwidth for an Increased Coverage","display_name":"Multifrequency Subpulse SAR: Exploiting Chirp Bandwidth for an Increased Coverage","publication_year":2018,"publication_date":"2018-09-18","ids":{"openalex":"https://openalex.org/W2890330337","doi":"https://doi.org/10.1109/lgrs.2018.2867723","mag":"2890330337"},"language":"en","primary_location":{"id":"doi:10.1109/lgrs.2018.2867723","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lgrs.2018.2867723","pdf_url":null,"source":{"id":"https://openalex.org/S126920919","display_name":"IEEE Geoscience and Remote Sensing Letters","issn_l":"1545-598X","issn":["1545-598X","1558-0571"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Geoscience and Remote Sensing Letters","raw_type":"journal-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/A5035104732","display_name":"Federica Bordoni","orcid":"https://orcid.org/0000-0001-9908-8775"},"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":"Federica Bordoni","raw_affiliation_strings":["German Aerospace Centre, Microwaves and Radar Institute, Wessling, Germany"],"affiliations":[{"raw_affiliation_string":"German Aerospace Centre, Microwaves and Radar Institute, Wessling, Germany","institution_ids":["https://openalex.org/I2898391981"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5038360917","display_name":"Gerhard Krieger","orcid":"https://orcid.org/0000-0002-4548-0285"},"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":"Gerhard Krieger","raw_affiliation_strings":["German Aerospace Centre, Microwaves and Radar Institute, Wessling, Germany"],"affiliations":[{"raw_affiliation_string":"German Aerospace Centre, Microwaves and Radar Institute, Wessling, Germany","institution_ids":["https://openalex.org/I2898391981"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5013091291","display_name":"Marwan Younis","orcid":"https://orcid.org/0000-0002-8563-7371"},"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":"Marwan Younis","raw_affiliation_strings":["German Aerospace Centre, Microwaves and Radar Institute, Wessling, Germany"],"affiliations":[{"raw_affiliation_string":"German Aerospace Centre, Microwaves and Radar Institute, Wessling, Germany","institution_ids":["https://openalex.org/I2898391981"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5035104732"],"corresponding_institution_ids":["https://openalex.org/I2898391981"],"apc_list":null,"apc_paid":null,"fwci":16.1772,"has_fulltext":false,"cited_by_count":26,"citation_normalized_percentile":{"value":0.98408089,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"16","issue":"1","first_page":"40","last_page":"44"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"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"}},"topics":[{"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/T11739","display_name":"Microwave Imaging and Scattering Analysis","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/T10891","display_name":"Radar Systems and Signal Processing","score":0.9984999895095825,"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/chirp","display_name":"Chirp","score":0.8353217840194702},{"id":"https://openalex.org/keywords/bandwidth","display_name":"Bandwidth (computing)","score":0.7464908957481384},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5234498381614685},{"id":"https://openalex.org/keywords/synthetic-aperture-radar","display_name":"Synthetic aperture radar","score":0.5019640922546387},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.38172000646591187},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.28725579380989075},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.28343266248703003},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.21012943983078003},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.18943056464195251},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.13079509139060974}],"concepts":[{"id":"https://openalex.org/C132794960","wikidata":"https://www.wikidata.org/wiki/Q27304","display_name":"Chirp","level":3,"score":0.8353217840194702},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.7464908957481384},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5234498381614685},{"id":"https://openalex.org/C87360688","wikidata":"https://www.wikidata.org/wiki/Q740686","display_name":"Synthetic aperture radar","level":2,"score":0.5019640922546387},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.38172000646591187},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.28725579380989075},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.28343266248703003},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.21012943983078003},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.18943056464195251},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.13079509139060974},{"id":"https://openalex.org/C520434653","wikidata":"https://www.wikidata.org/wiki/Q38867","display_name":"Laser","level":2,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/lgrs.2018.2867723","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lgrs.2018.2867723","pdf_url":null,"source":{"id":"https://openalex.org/S126920919","display_name":"IEEE Geoscience and Remote Sensing Letters","issn_l":"1545-598X","issn":["1545-598X","1558-0571"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Geoscience and Remote Sensing Letters","raw_type":"journal-article"},{"id":"pmh:oai:elib.dlr.de:121799","is_oa":false,"landing_page_url":null,"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":"","raw_type":"Zeitschriftenbeitrag"},{"id":"pmh:oai:elib.dlr.de:130962","is_oa":false,"landing_page_url":"https://doi.org/10.1109/LGRS.2018.2867723>.","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"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G6726561575","display_name":null,"funder_award_id":"F.45984/GO10006374","funder_id":"https://openalex.org/F4320321788","funder_display_name":"Airbus"}],"funders":[{"id":"https://openalex.org/F4320321788","display_name":"Airbus","ror":"https://ror.org/023qdcg29"},{"id":"https://openalex.org/F4320336228","display_name":"Airbus Defense and Space","ror":null}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W2002078266","https://openalex.org/W2100856811","https://openalex.org/W2110964282","https://openalex.org/W2127065135","https://openalex.org/W2128960312","https://openalex.org/W2140990782","https://openalex.org/W2174009612","https://openalex.org/W2199338325","https://openalex.org/W2413959588","https://openalex.org/W2444051878","https://openalex.org/W2771144649","https://openalex.org/W2792040240","https://openalex.org/W3214953536","https://openalex.org/W6675303217","https://openalex.org/W6687488508","https://openalex.org/W6716072159","https://openalex.org/W6718661396"],"related_works":["https://openalex.org/W4391375266","https://openalex.org/W2899084033","https://openalex.org/W2748952813","https://openalex.org/W2377235482","https://openalex.org/W2351454232","https://openalex.org/W2382227980","https://openalex.org/W2010341259","https://openalex.org/W1829578299","https://openalex.org/W2135637467","https://openalex.org/W4252699458"],"abstract_inverted_index":{"Spatial":[0],"resolution":[1],"and":[2,31,53,114],"swath":[3,99],"width":[4],"are":[5],"fundamental":[6],"quality":[7,133],"parameters":[8],"for":[9],"spaceborne":[10,23],"synthetic":[11],"aperture":[12],"radar":[13,69,92],"(SAR)":[14],"products.":[15],"They":[16],"have":[17],"driven":[18],"the":[19,28,47,90,97,102,121,129],"research":[20],"on":[21,120],"new":[22,33,54],"SAR":[24,36,55,77,125,131],"system":[25],"concepts":[26],"in":[27],"last":[29],"decades,":[30],"a":[32,67,75,116],"generation":[34],"of":[35,42,49,104],"systems":[37,45],"is":[38,46,61,80,110,134],"emerging.":[39],"Main":[40],"feature":[41],"these":[43],"future":[44,122],"use":[48],"multiple":[50],"digital":[51],"channels":[52],"processing":[56],"techniques.":[57],"A":[58],"further":[59],"characteristic":[60],"that":[62],"they":[63],"can":[64],"resort":[65],"to":[66,95],"large":[68],"signal":[70,93],"bandwidth.":[71],"In":[72],"this":[73],"letter,":[74],"novel":[76],"operational":[78],"mode":[79],"presented,":[81],"denoted":[82],"as":[83],"multifrequency":[84],"subpulse":[85],"(MFSP).":[86],"The":[87,107],"MFSP":[88],"exploits":[89],"available":[91],"bandwidth":[94],"increase":[96],"imaged":[98],"extension,":[100],"without":[101],"emergence":[103],"range":[105],"ambiguities.":[106],"proposed":[108],"approach":[109],"explained":[111],"both":[112],"theoretically":[113],"by":[115],"design":[117],"example,":[118],"based":[119],"German":[123],"X-band":[124],"system,":[126],"HRWS.":[127],"Moreover,":[128],"achievable":[130],"imaging":[132],"investigated.":[135]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":8},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":4},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1}],"updated_date":"2026-03-20T23:20:44.827607","created_date":"2025-10-10T00:00:00"}
