{"id":"https://openalex.org/W2080321997","doi":"https://doi.org/10.1109/igarss.2011.6049573","title":"The mean echo model and data process of SAR altimeter","display_name":"The mean echo model and data process of SAR altimeter","publication_year":2011,"publication_date":"2011-07-01","ids":{"openalex":"https://openalex.org/W2080321997","doi":"https://doi.org/10.1109/igarss.2011.6049573","mag":"2080321997"},"language":"en","primary_location":{"id":"doi:10.1109/igarss.2011.6049573","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2011.6049573","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 IEEE International Geoscience and Remote Sensing Symposium","raw_type":"proceedings-article"},"type":"conference-paper","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/A5029015187","display_name":"Shuangbao Yang","orcid":null},"institutions":[{"id":"https://openalex.org/I4210115570","display_name":"National Space Science Center","ror":"https://ror.org/02nnjtm50","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210115570"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shuang-Bao Yang","raw_affiliation_strings":["Center for Space Science and Applied Research, CAS, Beijing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Center for Space Science and Applied Research, CAS, Beijing, China","institution_ids":["https://openalex.org/I4210115570"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5085061047","display_name":"Heguang Liu","orcid":null},"institutions":[{"id":"https://openalex.org/I4210115570","display_name":"National Space Science Center","ror":"https://ror.org/02nnjtm50","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210115570"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"He-Guang Liu","raw_affiliation_strings":["Center for Space Science and Applied Research, CAS, Beijing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Center for Space Science and Applied Research, CAS, Beijing, China","institution_ids":["https://openalex.org/I4210115570"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102913148","display_name":"Ke Xu","orcid":"https://orcid.org/0009-0002-8629-6078"},"institutions":[{"id":"https://openalex.org/I4210115570","display_name":"National Space Science Center","ror":"https://ror.org/02nnjtm50","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210115570"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ke Xu","raw_affiliation_strings":["Center for Space Science and Applied Research, CAS, Beijing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Center for Space Science and Applied Research, CAS, Beijing, China","institution_ids":["https://openalex.org/I4210115570"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101610885","display_name":"Xiyu Xu","orcid":"https://orcid.org/0000-0002-6853-1866"},"institutions":[{"id":"https://openalex.org/I4210115570","display_name":"National Space Science Center","ror":"https://ror.org/02nnjtm50","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210115570"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xi-Yu Xu","raw_affiliation_strings":["Center for Space Science and Applied Research, CAS, Beijing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Center for Space Science and Applied Research, CAS, Beijing, China","institution_ids":["https://openalex.org/I4210115570"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I4210115570"],"apc_list":null,"apc_paid":null,"fwci":3.0965,"has_fulltext":false,"cited_by_count":8,"citation_normalized_percentile":{"value":0.89571429,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"2077","last_page":"2080"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11061","display_name":"Ocean Waves and Remote Sensing","score":0.998199999332428,"subfield":{"id":"https://openalex.org/subfields/1910","display_name":"Oceanography"},"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/T11061","display_name":"Ocean Waves and Remote Sensing","score":0.998199999332428,"subfield":{"id":"https://openalex.org/subfields/1910","display_name":"Oceanography"},"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/T10891","display_name":"Radar Systems and Signal Processing","score":0.996999979019165,"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":0.9955000281333923,"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/altimeter","display_name":"Altimeter","score":0.8750243186950684},{"id":"https://openalex.org/keywords/radar-altimeter","display_name":"Radar altimeter","score":0.6815171241760254},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.632717490196228},{"id":"https://openalex.org/keywords/echo","display_name":"Echo (communications protocol)","score":0.6050426959991455},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.549282968044281},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.5470304489135742},{"id":"https://openalex.org/keywords/geodesy","display_name":"Geodesy","score":0.4661240577697754},{"id":"https://openalex.org/keywords/wave-radar","display_name":"Wave radar","score":0.45499736070632935},{"id":"https://openalex.org/keywords/radar-imaging","display_name":"Radar imaging","score":0.43112969398498535},{"id":"https://openalex.org/keywords/synthetic-aperture-radar","display_name":"Synthetic aperture radar","score":0.4207204580307007},{"id":"https://openalex.org/keywords/continuous-wave-radar","display_name":"Continuous-wave radar","score":0.4073621928691864},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3215022385120392},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.09406864643096924}],"concepts":[{"id":"https://openalex.org/C17534553","wikidata":"https://www.wikidata.org/wiki/Q216197","display_name":"Altimeter","level":2,"score":0.8750243186950684},{"id":"https://openalex.org/C26760657","wikidata":"https://www.wikidata.org/wiki/Q1104030","display_name":"Radar altimeter","level":3,"score":0.6815171241760254},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.632717490196228},{"id":"https://openalex.org/C2779426996","wikidata":"https://www.wikidata.org/wiki/Q18389128","display_name":"Echo (communications protocol)","level":2,"score":0.6050426959991455},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.549282968044281},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.5470304489135742},{"id":"https://openalex.org/C13280743","wikidata":"https://www.wikidata.org/wiki/Q131089","display_name":"Geodesy","level":1,"score":0.4661240577697754},{"id":"https://openalex.org/C207699401","wikidata":"https://www.wikidata.org/wiki/Q17034239","display_name":"Wave radar","level":5,"score":0.45499736070632935},{"id":"https://openalex.org/C10929652","wikidata":"https://www.wikidata.org/wiki/Q7279985","display_name":"Radar imaging","level":3,"score":0.43112969398498535},{"id":"https://openalex.org/C87360688","wikidata":"https://www.wikidata.org/wiki/Q740686","display_name":"Synthetic aperture radar","level":2,"score":0.4207204580307007},{"id":"https://openalex.org/C59584813","wikidata":"https://www.wikidata.org/wiki/Q1029234","display_name":"Continuous-wave radar","level":4,"score":0.4073621928691864},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3215022385120392},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.09406864643096924},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/igarss.2011.6049573","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2011.6049573","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 IEEE International Geoscience and Remote Sensing Symposium","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/14","score":0.8700000047683716,"display_name":"Life below water"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W267457289","https://openalex.org/W1501322963","https://openalex.org/W1640598771","https://openalex.org/W2123692771","https://openalex.org/W2137313801","https://openalex.org/W2138331294","https://openalex.org/W2142679956","https://openalex.org/W2152559068","https://openalex.org/W2155182772","https://openalex.org/W2157441428","https://openalex.org/W2322804394","https://openalex.org/W2473081514","https://openalex.org/W2746129958","https://openalex.org/W3014732921","https://openalex.org/W4285719527","https://openalex.org/W6721297599"],"related_works":["https://openalex.org/W2057250073","https://openalex.org/W1991713108","https://openalex.org/W4248521562","https://openalex.org/W2163074758","https://openalex.org/W2113925461","https://openalex.org/W2142736189","https://openalex.org/W1664413025","https://openalex.org/W2040823924","https://openalex.org/W326442093","https://openalex.org/W848453126"],"abstract_inverted_index":{"This":[0],"paper":[1],"is":[2,27,72,87,97],"concerned":[3],"with":[4,16,76,99],"the":[5,20,24,43,63,82,90,121],"theoretical":[6],"model":[7,46,93,130],"for":[8,133],"SAR":[9,25,33,48,83,135],"altimeter":[10,26,34,49,84,136],"or":[11],"Delay-Doppler":[12],"radar":[13,60,109],"altimeter.":[14,61],"Work":[15],"this":[17,39],"aim,":[18],"first,":[19],"data":[21],"process":[22,71],"of":[23,32,47,58,115,127],"introduced":[28],"and":[29,74,89,108,131],"some":[30,125],"assumptions":[31],"systems":[35],"are":[36,118],"introduced.":[37],"And":[38],"result":[40],"in":[41,94],"that":[42,57],"mean":[44,91,128],"echo":[45,92,101,129],"could":[50],"expressed":[51],"as":[52,56],"three":[53],"terms":[54],"convolution":[55],"conventional":[59],"Second,":[62],"sub-fan-beam":[64],"pattern":[65],"formed":[66],"by":[67],"along":[68],"track":[69],"signal":[70],"analyzed":[73],"approximated":[75],"one":[77],"simplified":[78],"Gaussian":[79],"expression.":[80],"Third,":[81],"measurement":[85],"geometry":[86],"described":[88,98],"common":[95],"sense":[96],"parameters":[100],"delay,":[102],"sea":[103],"wave":[104],"height,":[105],"scatter":[106],"coefficients":[107],"antenna":[110],"pointing":[111],"angle.":[112],"Some":[113],"applications":[114],"these":[116],"results":[117],"presented":[119],"at":[120],"last":[122],"section,":[123],"include":[124],"features":[126],"proposal":[132],"future":[134],"system.":[137]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}
