{"id":"https://openalex.org/A5001944934","orcid":null,"observed_orcids":[],"display_name":"U. Gebhardt","raw_author_names":["Gebhardt, U.","U. Gebhardt","Ulrich Gebhardt"],"full_name":"Gebhardt, Ulrich","works_count":17,"cited_by_count":91,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":5,"i10_index":2},"ids":{"openalex":"https://openalex.org/A5001944934","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I206895457","ror":"https://ror.org/02azyry73","display_name":"University of Siegen","country_code":"DE","type":"education","lineage":["https://openalex.org/I206895457"]},"years":[2006,2005,2004]},{"institution":{"id":"https://openalex.org/I4210090867","ror":"https://ror.org/00a6rw165","display_name":"Fraunhofer Institute for High Frequency Physics and Radar Techniques","country_code":"DE","type":"facility","lineage":["https://openalex.org/I4210090867","https://openalex.org/I4923324"]},"years":[2012,2010,2009,2008]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T11038","display_name":"Advanced SAR Imaging Techniques","count":13,"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/T10801","display_name":"Synthetic Aperture Radar (SAR) Applications and Techniques","count":10,"subfield":{"id":"https://openalex.org/subfields/1908","display_name":"Geophysics"},"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/T12983","display_name":"Satellite Image Processing and Photogrammetry","count":6,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11082","display_name":"Spacecraft Dynamics and Control","count":4,"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/T10752","display_name":"Terahertz technology and applications","count":3,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T11038","display_name":"Advanced SAR Imaging Techniques","value":8.39e-05,"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/T10801","display_name":"Synthetic Aperture Radar (SAR) Applications and Techniques","value":6.25e-05,"subfield":{"id":"https://openalex.org/subfields/1908","display_name":"Geophysics"},"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/T12983","display_name":"Satellite Image Processing and Photogrammetry","value":3.88e-05,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10752","display_name":"Terahertz technology and applications","value":2.51e-05,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic 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/T11082","display_name":"Spacecraft Dynamics and Control","value":2.11e-05,"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"}}],"x_concepts":[{"id":"41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","score":0.8236256241798401},{"id":"10929652","wikidata":"https://www.wikidata.org/wiki/Q7279985","display_name":"Radar imaging","score":0.7348134517669678},{"id":"554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","score":0.5714179277420044},{"id":"127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","score":0.4104999899864197},{"id":"76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","score":0.2703784108161926}],"counts_by_year":[{"year":2004,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2006,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2008,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2009,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2010,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":1,"oa_works_count":0,"cited_by_count":7},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":7},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2015,"works_count":1,"oa_works_count":0,"cited_by_count":4},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":1}],"display_name_alternatives":["Gebhardt, U.","U. Gebhardt","Ulrich Gebhardt"],"block_key":"u gebhardt","works_api_url":"https://api.openalex.org/works?filter=author.id:A5001944934","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5001944934","updated_date":"2026-11-08T12:57:04","created_date":"2016-06-24T00:00:00"}