{"id":"https://openalex.org/W2015012778","doi":"https://doi.org/10.1109/igarss.2012.6351579","title":"Unexpected height offsets in TanDEM-X: Explanation and correction","display_name":"Unexpected height offsets in TanDEM-X: Explanation and correction","publication_year":2012,"publication_date":"2012-07-01","ids":{"openalex":"https://openalex.org/W2015012778","doi":"https://doi.org/10.1109/igarss.2012.6351579","mag":"2015012778"},"language":"en","primary_location":{"id":"doi:10.1109/igarss.2012.6351579","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2012.6351579","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2012 IEEE International Geoscience and Remote Sensing Symposium","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/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":true,"raw_author_name":"Gerhard Krieger","raw_affiliation_strings":["Microwaves and Radar Institute, German AeroSpace Center, Oberpfaffenhofen, Germany","Microwaves and Radar Institute German Aerospace Center (DLR) Oberpfaffenhofen Germany"],"affiliations":[{"raw_affiliation_string":"Microwaves and Radar Institute, German AeroSpace Center, Oberpfaffenhofen, Germany","institution_ids":["https://openalex.org/I2898391981"]},{"raw_affiliation_string":"Microwaves and Radar Institute German Aerospace Center (DLR) Oberpfaffenhofen Germany","institution_ids":["https://openalex.org/I2898391981"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5047436745","display_name":"Francesco De Zan","orcid":"https://orcid.org/0000-0002-1643-2559"},"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":"Francesco De Zan","raw_affiliation_strings":["Microwaves and Radar Institute, German AeroSpace Center, Oberpfaffenhofen, Germany","Microwaves and Radar Institute German Aerospace Center (DLR) Oberpfaffenhofen Germany"],"affiliations":[{"raw_affiliation_string":"Microwaves and Radar Institute, German AeroSpace Center, Oberpfaffenhofen, Germany","institution_ids":["https://openalex.org/I2898391981"]},{"raw_affiliation_string":"Microwaves and Radar Institute German Aerospace Center (DLR) Oberpfaffenhofen Germany","institution_ids":["https://openalex.org/I2898391981"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103130561","display_name":"Markus Bachmann","orcid":"https://orcid.org/0000-0002-6028-4303"},"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":"Markus Bachmann","raw_affiliation_strings":["Microwaves and Radar Institute, German AeroSpace Center, Oberpfaffenhofen, Germany","Microwaves and Radar Institute German Aerospace Center (DLR) Oberpfaffenhofen Germany"],"affiliations":[{"raw_affiliation_string":"Microwaves and Radar Institute, German AeroSpace Center, Oberpfaffenhofen, Germany","institution_ids":["https://openalex.org/I2898391981"]},{"raw_affiliation_string":"Microwaves and Radar Institute German Aerospace Center (DLR) Oberpfaffenhofen Germany","institution_ids":["https://openalex.org/I2898391981"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5013762130","display_name":"Jaime Hueso Gonz\u00e1lez","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":false,"raw_author_name":"Jaime Hueso Gonzalez","raw_affiliation_strings":["Microwaves and Radar Institute, German AeroSpace Center, Oberpfaffenhofen, Germany","Microwaves and Radar Institute German Aerospace Center (DLR) Oberpfaffenhofen Germany"],"affiliations":[{"raw_affiliation_string":"Microwaves and Radar Institute, German AeroSpace Center, Oberpfaffenhofen, Germany","institution_ids":["https://openalex.org/I2898391981"]},{"raw_affiliation_string":"Microwaves and Radar Institute German Aerospace Center (DLR) Oberpfaffenhofen Germany","institution_ids":["https://openalex.org/I2898391981"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5075070188","display_name":"Marc Rodriguez Cassola","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":false,"raw_author_name":"Marc Rodriguez Cassola","raw_affiliation_strings":["Microwaves and Radar Institute, German AeroSpace Center, Oberpfaffenhofen, Germany","Microwaves and Radar Institute German Aerospace Center (DLR) Oberpfaffenhofen Germany"],"affiliations":[{"raw_affiliation_string":"Microwaves and Radar Institute, German AeroSpace Center, Oberpfaffenhofen, Germany","institution_ids":["https://openalex.org/I2898391981"]},{"raw_affiliation_string":"Microwaves and Radar Institute German Aerospace Center (DLR) Oberpfaffenhofen Germany","institution_ids":["https://openalex.org/I2898391981"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5081451932","display_name":"Manfred Zink","orcid":"https://orcid.org/0000-0002-4308-5636"},"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":"Manfred Zink","raw_affiliation_strings":["Microwaves and Radar Institute, German AeroSpace Center, Oberpfaffenhofen, Germany","Microwaves and Radar Institute German Aerospace Center (DLR) Oberpfaffenhofen Germany"],"affiliations":[{"raw_affiliation_string":"Microwaves and Radar Institute, German AeroSpace Center, Oberpfaffenhofen, Germany","institution_ids":["https://openalex.org/I2898391981"]},{"raw_affiliation_string":"Microwaves and Radar Institute German Aerospace Center (DLR) Oberpfaffenhofen Germany","institution_ids":["https://openalex.org/I2898391981"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5038360917"],"corresponding_institution_ids":["https://openalex.org/I2898391981"],"apc_list":null,"apc_paid":null,"fwci":58.3834,"has_fulltext":false,"cited_by_count":15,"citation_normalized_percentile":{"value":0.9954811,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"295","last_page":"298"},"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/T11405","display_name":"Geophysics and Gravity Measurements","score":0.9966999888420105,"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/T11038","display_name":"Advanced SAR Imaging Techniques","score":0.9944999814033508,"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/tandem","display_name":"Tandem","score":0.7651669383049011},{"id":"https://openalex.org/keywords/troposphere","display_name":"Troposphere","score":0.5913851857185364},{"id":"https://openalex.org/keywords/bistatic-radar","display_name":"Bistatic radar","score":0.5550312995910645},{"id":"https://openalex.org/keywords/baseline","display_name":"Baseline (sea)","score":0.5342919230461121},{"id":"https://openalex.org/keywords/interferometry","display_name":"Interferometry","score":0.5134474039077759},{"id":"https://openalex.org/keywords/calibration","display_name":"Calibration","score":0.5010154247283936},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.46730825304985046},{"id":"https://openalex.org/keywords/geodesy","display_name":"Geodesy","score":0.4655293822288513},{"id":"https://openalex.org/keywords/theory-of-relativity","display_name":"Theory of relativity","score":0.45496541261672974},{"id":"https://openalex.org/keywords/systematic-error","display_name":"Systematic error","score":0.4433871805667877},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.4115089774131775},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.38542640209198},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.2200395166873932},{"id":"https://openalex.org/keywords/meteorology","display_name":"Meteorology","score":0.2189006507396698},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.2051168978214264},{"id":"https://openalex.org/keywords/aerospace-engineering","display_name":"Aerospace engineering","score":0.2038305401802063},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.1972491443157196},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.17447343468666077},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.13730373978614807},{"id":"https://openalex.org/keywords/classical-mechanics","display_name":"Classical mechanics","score":0.13476306200027466},{"id":"https://openalex.org/keywords/radar-imaging","display_name":"Radar imaging","score":0.1216692328453064},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.11129829287528992},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.07641464471817017}],"concepts":[{"id":"https://openalex.org/C2777814067","wikidata":"https://www.wikidata.org/wiki/Q1752317","display_name":"Tandem","level":2,"score":0.7651669383049011},{"id":"https://openalex.org/C9075549","wikidata":"https://www.wikidata.org/wiki/Q40631","display_name":"Troposphere","level":2,"score":0.5913851857185364},{"id":"https://openalex.org/C100102862","wikidata":"https://www.wikidata.org/wiki/Q2625855","display_name":"Bistatic radar","level":4,"score":0.5550312995910645},{"id":"https://openalex.org/C12725497","wikidata":"https://www.wikidata.org/wiki/Q810247","display_name":"Baseline (sea)","level":2,"score":0.5342919230461121},{"id":"https://openalex.org/C166689943","wikidata":"https://www.wikidata.org/wiki/Q850283","display_name":"Interferometry","level":2,"score":0.5134474039077759},{"id":"https://openalex.org/C165838908","wikidata":"https://www.wikidata.org/wiki/Q736777","display_name":"Calibration","level":2,"score":0.5010154247283936},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.46730825304985046},{"id":"https://openalex.org/C13280743","wikidata":"https://www.wikidata.org/wiki/Q131089","display_name":"Geodesy","level":1,"score":0.4655293822288513},{"id":"https://openalex.org/C149324446","wikidata":"https://www.wikidata.org/wiki/Q43514","display_name":"Theory of relativity","level":2,"score":0.45496541261672974},{"id":"https://openalex.org/C100253034","wikidata":"https://www.wikidata.org/wiki/Q196372","display_name":"Systematic error","level":2,"score":0.4433871805667877},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.4115089774131775},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.38542640209198},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.2200395166873932},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.2189006507396698},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.2051168978214264},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.2038305401802063},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.1972491443157196},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.17447343468666077},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.13730373978614807},{"id":"https://openalex.org/C74650414","wikidata":"https://www.wikidata.org/wiki/Q11397","display_name":"Classical mechanics","level":1,"score":0.13476306200027466},{"id":"https://openalex.org/C10929652","wikidata":"https://www.wikidata.org/wiki/Q7279985","display_name":"Radar imaging","level":3,"score":0.1216692328453064},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.11129829287528992},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.07641464471817017},{"id":"https://openalex.org/C111368507","wikidata":"https://www.wikidata.org/wiki/Q43518","display_name":"Oceanography","level":1,"score":0.0},{"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/igarss.2012.6351579","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2012.6351579","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2012 IEEE International Geoscience and Remote Sensing Symposium","raw_type":"proceedings-article"},{"id":"pmh:oai:elib.dlr.de:76976","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2012.6351579>.","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":[],"funders":[{"id":"https://openalex.org/F4320321469","display_name":"Bundesministerium f\u00fcr Wirtschaft und Technologie","ror":"https://ror.org/02vgg2808"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":5,"referenced_works":["https://openalex.org/W1979821482","https://openalex.org/W2025969570","https://openalex.org/W2048251016","https://openalex.org/W2155259401","https://openalex.org/W2535243374"],"related_works":["https://openalex.org/W2004765814","https://openalex.org/W2950419692","https://openalex.org/W1636544497","https://openalex.org/W2023186083","https://openalex.org/W4323262585","https://openalex.org/W2034611846","https://openalex.org/W2051186205","https://openalex.org/W3188737086","https://openalex.org/W2545704177","https://openalex.org/W2554356744"],"abstract_inverted_index":{"This":[0],"paper":[1],"reports":[2],"on":[3],"systematic":[4],"height":[5],"offsets":[6],"that":[7,46,88],"have":[8,43,103],"been":[9,44,107],"observed":[10,98],"in":[11,34,82,93,104,109],"TanDEM-X":[12,112],"by":[13],"evaluating":[14],"a":[15],"large":[16],"number":[17],"of":[18,72],"digital":[19],"elevation":[20],"model":[21],"(DEM)":[22],"acquisitions.":[23],"Besides":[24],"the":[25,35,83,89,97,105,110],"expected":[26],"instrument":[27],"and":[28,63],"baseline":[29],"offsets,":[30],"which":[31],"are":[32,92],"compensated":[33],"calibration":[36],"chain,":[37],"two":[38],"unexpected":[39],"external":[40],"error":[41],"sources":[42],"identified":[45],"apply":[47],"to":[48,60,79],"any":[49],"formation":[50],"flying":[51],"bistatic":[52],"SAR":[53],"interferometer.":[54],"The":[55,74],"first":[56],"contribution":[57],"is":[58,77,86],"due":[59,78],"relativistic":[61],"effects":[62],"can":[64],"be":[65],"well":[66],"explained":[67],"within":[68],"Einstein's":[69],"special":[70],"theory":[71],"relativity.":[73],"second":[75],"effect":[76],"differential":[80],"delays":[81],"troposphere.":[84],"It":[85],"shown":[87],"theoretic":[90],"predictions":[91],"good":[94],"agreement":[95],"with":[96],"offsets.":[99],"All":[100],"necessary":[101],"corrections":[102],"meantime":[106],"integrated":[108],"operational":[111],"processing":[113],"chain.":[114]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2019,"cited_by_count":1},{"year":2017,"cited_by_count":3},{"year":2015,"cited_by_count":3},{"year":2014,"cited_by_count":3},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2026-03-20T23:20:44.827607","created_date":"2025-10-10T00:00:00"}