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{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,9,7]],"date-time":"2024-09-07T06:43:11Z","timestamp":1725691391390},"reference-count":24,"publisher":"MDPI AG","issue":"20","license":[{"start":{"date-parts":[[2019,10,11]],"date-time":"2019-10-11T00:00:00Z","timestamp":1570752000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100008743","name":"Ministerio de Educaci\u00f3n y Cultura","doi-asserted-by":"publisher","award":["FPU15\/06341"],"id":[{"id":"10.13039\/501100008743","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100014440","name":"Ministerio de Ciencia, Innovaci\u00f3n y Universidades","doi-asserted-by":"publisher","award":["RTI2018-095825-B-I00"],"id":[{"id":"10.13039\/100014440","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100011941","name":"Gobierno del Principado de Asturias","doi-asserted-by":"publisher","award":["IDI\/2018\/000191"],"id":[{"id":"10.13039\/100011941","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100010551","name":"Instituto Universitario de Tecnolog\u00eda Industrial de Asturias","doi-asserted-by":"publisher","award":["SV-19-GIJON-1-17"],"id":[{"id":"10.13039\/501100010551","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"This work presents an enhanced autonomous airborne Synthetic Aperture Radar (SAR) imaging system able to provide full 3D radar images from the subsurface. The proposed prototype and methodology allow the safe detection of both metallic and non-metallic buried targets even in difficult-to-access scenarios without interacting with the ground. Thus, they are particularly suitable for detecting dangerous targets, such as landmines and Improvised Explosive Devices (IEDs). The prototype is mainly composed by an Ultra-Wide-Band (UWB) radar module working from Ultra-High-Frequency (UHF) band and a high accuracy dual-band Real Time Kinematic (RTK) positioning system mounted on board an Unmanned Aerial Vehicle (UAV). The UAV autonomously flies over the region of interest, gathering radar measurements. These measurements are accurately geo-referred so as to enable their coherent combination to obtain a well-focused SAR image. Improvements in the processing chain are also presented in order to deal with some issues associated to UAV-based measurements (such as non-uniform acquisition grids) as well as to enhance the resolution and the signal to clutter ratio of the image. Both the prototype and the methodology were validated with measurements, showing their capability to provide high-resolution 3D SAR images.<\/jats:p>","DOI":"10.3390\/rs11202357","type":"journal-article","created":{"date-parts":[[2019,10,11]],"date-time":"2019-10-11T14:53:03Z","timestamp":1570805583000},"page":"2357","source":"Crossref","is-referenced-by-count":53,"title":["Autonomous Airborne 3D SAR Imaging System for Subsurface Sensing: UWB-GPR on Board a UAV for Landmine and IED Detection"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"http:\/\/orcid.org\/0000-0001-8935-1912","authenticated-orcid":false,"given":"Maria","family":"Garcia-Fernandez","sequence":"first","affiliation":[{"name":"Area of Signal Theory and Communications, University of Oviedo, 33203 Gij\u00f3n, Spain"}]},{"ORCID":"http:\/\/orcid.org\/0000-0003-3625-4515","authenticated-orcid":false,"given":"Yuri","family":"Alvarez-Lopez","sequence":"additional","affiliation":[{"name":"Area of Signal Theory and Communications, University of Oviedo, 33203 Gij\u00f3n, Spain"}]},{"ORCID":"http:\/\/orcid.org\/0000-0001-7959-2114","authenticated-orcid":false,"given":"Fernando","family":"Las Heras","sequence":"additional","affiliation":[{"name":"Area of Signal Theory and Communications, University of Oviedo, 33203 Gij\u00f3n, Spain"}]}],"member":"1968","published-online":{"date-parts":[[2019,10,11]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Yao, H., Qin, R., and Chen, X. 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Remote Sens."}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/11\/20\/2357\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,6,21]],"date-time":"2024-06-21T06:26:18Z","timestamp":1718951178000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/11\/20\/2357"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,10,11]]},"references-count":24,"journal-issue":{"issue":"20","published-online":{"date-parts":[[2019,10]]}},"alternative-id":["rs11202357"],"URL":"https:\/\/doi.org\/10.3390\/rs11202357","relation":{},"ISSN":["2072-4292"],"issn-type":[{"value":"2072-4292","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,10,11]]}}}