{"id":"https://openalex.org/W2052862999","doi":"https://doi.org/10.1109/lgrs.2009.2025245","title":"Azimuth Phase Center Adaptation on Transmit for High-Resolution Wide-Swath SAR Imaging","display_name":"Azimuth Phase Center Adaptation on Transmit for High-Resolution Wide-Swath SAR Imaging","publication_year":2009,"publication_date":"2009-08-25","ids":{"openalex":"https://openalex.org/W2052862999","doi":"https://doi.org/10.1109/lgrs.2009.2025245","mag":"2052862999"},"language":"en","primary_location":{"id":"doi:10.1109/lgrs.2009.2025245","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lgrs.2009.2025245","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/A5110101300","display_name":"Nicolas Gebert","orcid":null},"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":"N. Gebert","raw_affiliation_strings":["Microwaves and Radar Institute, German AeroSpace Center, Wessling, Germany","German Aerosp. Center, Microwaves & Radar Inst., Wessling, Germany"],"affiliations":[{"raw_affiliation_string":"Microwaves and Radar Institute, German AeroSpace Center, Wessling, Germany","institution_ids":["https://openalex.org/I2898391981"]},{"raw_affiliation_string":"German Aerosp. Center, Microwaves & Radar Inst., Wessling, Germany","institution_ids":["https://openalex.org/I2898391981"]}]},{"author_position":"last","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":"G. Krieger","raw_affiliation_strings":["Microwaves and Radar Institute, German AeroSpace Center, Wessling, Germany","German Aerosp. Center, Microwaves & Radar Inst., Wessling, Germany"],"affiliations":[{"raw_affiliation_string":"Microwaves and Radar Institute, German AeroSpace Center, Wessling, Germany","institution_ids":["https://openalex.org/I2898391981"]},{"raw_affiliation_string":"German Aerosp. Center, Microwaves & Radar Inst., Wessling, Germany","institution_ids":["https://openalex.org/I2898391981"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5110101300"],"corresponding_institution_ids":["https://openalex.org/I2898391981"],"apc_list":null,"apc_paid":null,"fwci":132.0402,"has_fulltext":false,"cited_by_count":63,"citation_normalized_percentile":{"value":0.99856226,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":91,"max":99},"biblio":{"volume":"6","issue":"4","first_page":"782","last_page":"786"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11038","display_name":"Advanced SAR Imaging Techniques","score":1.0,"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":1.0,"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":0.9997000098228455,"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/T10801","display_name":"Synthetic Aperture Radar (SAR) Applications and Techniques","score":0.9991999864578247,"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/azimuth","display_name":"Azimuth","score":0.8418030738830566},{"id":"https://openalex.org/keywords/synthetic-aperture-radar","display_name":"Synthetic aperture radar","score":0.7966800332069397},{"id":"https://openalex.org/keywords/phase-center","display_name":"Phase center","score":0.7539473176002502},{"id":"https://openalex.org/keywords/pulse-repetition-frequency","display_name":"Pulse repetition frequency","score":0.7476832270622253},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7118596434593201},{"id":"https://openalex.org/keywords/radar-imaging","display_name":"Radar imaging","score":0.5013301372528076},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.4792451858520508},{"id":"https://openalex.org/keywords/phase","display_name":"Phase (matter)","score":0.47299298644065857},{"id":"https://openalex.org/keywords/inverse-synthetic-aperture-radar","display_name":"Inverse synthetic aperture radar","score":0.4448862373828888},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.38695642352104187},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.3819856345653534},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.37261444330215454},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.3695439100265503},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.2505091726779938},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.22660493850708008},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.2236076295375824},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.189641535282135},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.13226422667503357}],"concepts":[{"id":"https://openalex.org/C159737794","wikidata":"https://www.wikidata.org/wiki/Q124274","display_name":"Azimuth","level":2,"score":0.8418030738830566},{"id":"https://openalex.org/C87360688","wikidata":"https://www.wikidata.org/wiki/Q740686","display_name":"Synthetic aperture radar","level":2,"score":0.7966800332069397},{"id":"https://openalex.org/C7615733","wikidata":"https://www.wikidata.org/wiki/Q2085398","display_name":"Phase center","level":3,"score":0.7539473176002502},{"id":"https://openalex.org/C182862853","wikidata":"https://www.wikidata.org/wiki/Q575887","display_name":"Pulse repetition frequency","level":3,"score":0.7476832270622253},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7118596434593201},{"id":"https://openalex.org/C10929652","wikidata":"https://www.wikidata.org/wiki/Q7279985","display_name":"Radar imaging","level":3,"score":0.5013301372528076},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.4792451858520508},{"id":"https://openalex.org/C44280652","wikidata":"https://www.wikidata.org/wiki/Q104837","display_name":"Phase (matter)","level":2,"score":0.47299298644065857},{"id":"https://openalex.org/C109094680","wikidata":"https://www.wikidata.org/wiki/Q6060432","display_name":"Inverse synthetic aperture radar","level":4,"score":0.4448862373828888},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.38695642352104187},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.3819856345653534},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.37261444330215454},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.3695439100265503},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.2505091726779938},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.22660493850708008},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.2236076295375824},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.189641535282135},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.13226422667503357},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/lgrs.2009.2025245","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lgrs.2009.2025245","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:58420","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"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7","score":0.49000000953674316}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":7,"referenced_works":["https://openalex.org/W86549454","https://openalex.org/W2110964282","https://openalex.org/W2140990782","https://openalex.org/W2149342143","https://openalex.org/W2321585011","https://openalex.org/W2407948261","https://openalex.org/W3214953536"],"related_works":["https://openalex.org/W2540450177","https://openalex.org/W2170580735","https://openalex.org/W1552305638","https://openalex.org/W2112228652","https://openalex.org/W1994788526","https://openalex.org/W1915418828","https://openalex.org/W2613451563","https://openalex.org/W1966299760","https://openalex.org/W2150075356","https://openalex.org/W2007886977"],"abstract_inverted_index":{"Synthetic":[0],"aperture":[1],"radar":[2],"(SAR)":[3],"systems":[4],"with":[5,57,146],"multiple":[6,25],"receive":[7],"channels":[8],"allow":[9],"for":[10,33,39,107,170],"high-resolution":[11],"wide-swath":[12],"imaging":[13],"thus":[14],"overcoming":[15],"a":[16,40,48,52,58,70,91,108,137,158,167],"fundamental":[17],"limitation":[18],"of":[19,84,111,122],"conventional":[20,147],"single-aperture":[21],"SAR.":[22],"By":[23],"using":[24],"apertures":[26],"in":[27,62,90,144],"azimuth,":[28],"additional":[29],"samples":[30],"are":[31],"received":[32],"each":[34],"transmitted":[35],"pulse.":[36],"This":[37,94],"allows":[38,106],"reduced":[41],"pulse":[42],"repetition":[43],"frequency":[44],"(PRF)":[45],"thereby":[46,132],"enabling":[47],"wider":[49],"swath.":[50],"However,":[51],"nonoptimum":[53],"PRF":[54,140],"is":[55],"associated":[56],"nonuniform":[59],"sample":[60],"spacing":[61],"azimuth":[63],"and":[64,165],"needs":[65],"to":[66,128],"be":[67,96],"compensated":[68],"by":[69,98],"multichannel":[71,148],"reconstruction":[72],"algorithm.":[73],"For":[74],"strong":[75],"deviations":[76],"from":[77],"the":[78,81,112,119,123,129,154],"optimum":[79],"PRF,":[80,131],"inverse":[82],"character":[83],"such":[85],"an":[86,99,116],"algorithm":[87],"might":[88],"result":[89],"degraded":[92],"performance.":[93],"can":[95],"overcome":[97],"innovative":[100],"advanced":[101],"transmit":[102],"antenna":[103,117],"architecture":[104],"which":[105],"pulse-to-pulse":[109],"shift":[110],"phase":[113,125],"center.":[114],"Such":[115],"enables":[118],"adaptive":[120],"adjustment":[121],"system's":[124],"center":[126],"positions":[127],"respective":[130],"ensuring":[133],"constant":[134],"performance":[135],"over":[136],"clearly":[138],"extended":[139],"range.":[141],"In":[142],"particular,":[143],"combination":[145],"processing":[149],"strategies,":[150],"this":[151],"technique":[152],"represents":[153],"next":[155],"step":[156],"toward":[157],"fully":[159],"active":[160],"multiple-input":[161],"multiple-output":[162],"(MIMO)":[163],"SAR":[164],"has":[166],"great":[168],"potential":[169],"future":[171],"systems.":[172]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":7},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":7},{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":5},{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":3},{"year":2015,"cited_by_count":3},{"year":2014,"cited_by_count":4},{"year":2013,"cited_by_count":5},{"year":2012,"cited_by_count":6}],"updated_date":"2026-03-06T13:50:29.536080","created_date":"2025-10-10T00:00:00"}