{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,20]],"date-time":"2026-03-20T16:09:12Z","timestamp":1774022952302,"version":"3.50.1"},"reference-count":46,"publisher":"MDPI AG","issue":"16","license":[{"start":{"date-parts":[[2022,8,9]],"date-time":"2022-08-09T00:00:00Z","timestamp":1660003200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Natural Science Foundation Committee (NSFC) of China","award":["52075404"],"award-info":[{"award-number":["52075404"]}]},{"name":"National Natural Science Foundation Committee (NSFC) of China","award":["2020010601012176"],"award-info":[{"award-number":["2020010601012176"]}]},{"name":"Application Basic Frontier Special Project of Wuhan Science and Technology Bureau","award":["52075404"],"award-info":[{"award-number":["52075404"]}]},{"name":"Application Basic Frontier Special Project of Wuhan Science and Technology Bureau","award":["2020010601012176"],"award-info":[{"award-number":["2020010601012176"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Ultra-wideband (UWB) technology is used for indoor positioning, but its positioning accuracy is usually degenerated by various obstacles in the indoor environment because of non-line-of-sight (NLOS). Facing the complex and changeable indoor environment, an indoor positioning system with UWB based on a digital twin is presented in this paper. The indoor positioning accuracy is improved with a perception\u2013prediction feedback of cyber-physics space in this indoor positioning system. In addition, an anchor layout method with virtuality\u2013reality interaction and an error mitigation method based on neural networks is put forward in this system. Finally, a case study is presented to validate this indoor positioning system with a significant improvement in positioning accuracy.<\/jats:p>","DOI":"10.3390\/s22165936","type":"journal-article","created":{"date-parts":[[2022,8,10]],"date-time":"2022-08-10T04:20:32Z","timestamp":1660105232000},"page":"5936","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":25,"title":["Indoor Positioning System with UWB Based on a Digital Twin"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4493-4668","authenticated-orcid":false,"given":"Ping","family":"Lou","sequence":"first","affiliation":[{"name":"School of Information Engineering, Wuhan University of Technology, Wuhan 430070, China"}]},{"given":"Qi","family":"Zhao","sequence":"additional","affiliation":[{"name":"School of Information Engineering, Wuhan University of Technology, Wuhan 430070, China"}]},{"given":"Xiaomei","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Information Engineering, Wuhan University of Technology, Wuhan 430070, China"}]},{"given":"Da","family":"Li","sequence":"additional","affiliation":[{"name":"School of Information Engineering, Wuhan University of Technology, Wuhan 430070, China"}]},{"given":"Jiwei","family":"Hu","sequence":"additional","affiliation":[{"name":"School of Information Engineering, Wuhan University of Technology, Wuhan 430070, China"}]}],"member":"1968","published-online":{"date-parts":[[2022,8,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1029\/2011RS004683","article-title":"GNSS-R Ground-Based and Airborne Campaigns for Ocean, Land, Ice, and Snow Techniques: Application to the GOLD-RTR Data Sets: GNSS-R CAMPAIGNS","volume":"46","author":"Cardellach","year":"2011","journal-title":"Radio Sci."},{"key":"ref_2","first-page":"1781","article-title":"Position Vectors Based Efficient Indoor Positioning System","volume":"67","author":"Javed","year":"2021","journal-title":"Comput. 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