{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,26]],"date-time":"2026-02-26T15:48:34Z","timestamp":1772120914332,"version":"3.50.1"},"reference-count":21,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2019,3,18]],"date-time":"2019-03-18T00:00:00Z","timestamp":1552867200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In this paper, we present an accurate method to localize an object on a 2D plan using the chipless technology. This method requires a single antenna and a chipless tag. Phase difference between a reference position and an unknown position is used to estimate the distances between each resonator and the antenna. Then, multi-lateration is used to determine the position of the chipless tag in the plan. This method provides a better accuracy compared to classical ones based on received signal strength indicator (RSSI) or round-trip time-of-flight. In a square of 10 cm side above the antenna, error over distance determination between each resonators and the antenna is less than 2 mm and localization error on the tag coordinates in the 2D plan is lower than 1 cm. To increase the robustness of this method, we propose also a selection of a subset of the resonators used by the multi-lateration process. This method permits to increase the localization area by more than 20%. All the results have been obtained in real environment, and at different heights to show the robustness of the proposed approach. Finally, localization sensors based on this method can also be used as classical chipless RFID tag for identification with the same coding capacity.<\/jats:p>","DOI":"10.3390\/s19061341","type":"journal-article","created":{"date-parts":[[2019,3,18]],"date-time":"2019-03-18T12:18:53Z","timestamp":1552911533000},"page":"1341","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["Accurate Positioning System Based on Chipless Technology"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6355-9109","authenticated-orcid":false,"given":"Nicolas","family":"Barbot","sequence":"first","affiliation":[{"name":"Univ. Grenoble Alpes, Grenoble INP, LCIS, F-26000 Valence, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2671-8366","authenticated-orcid":false,"given":"Etienne","family":"Perret","sequence":"additional","affiliation":[{"name":"Univ. Grenoble Alpes, Grenoble INP, LCIS, F-26000 Valence, France"},{"name":"Institut Universitaire de France, 75005 Paris, France"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2019,3,18]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"142","DOI":"10.1145\/2897824.2925953","article-title":"Soli: Ubiquitous gesture sensing with millimeter wave radar","volume":"35","author":"Lien","year":"2016","journal-title":"ACM Trans. Graph. (TOG)"},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Hazra, S., and Santra, A. (2018). Robust gesture recognition using millimetric-wave radar system. IEEE Sens. Lett., 2.","DOI":"10.1109\/LSENS.2018.2882642"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"2608","DOI":"10.1109\/TIM.2008.925019","article-title":"Design of an RFID-Based Battery-Free Programmable Sensing Platform","volume":"57","author":"Sample","year":"2008","journal-title":"IEEE Trans. Instrum. Meas."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"3623","DOI":"10.1109\/TMTT.2012.2213838","article-title":"Passive wireless temperature sensor based on time-coded UWB chipless RFID tags","volume":"60","author":"Girbau","year":"2012","journal-title":"IEEE Trans. Microw. Theory Tech."},{"key":"ref_5","doi-asserted-by":"crossref","unstructured":"Kubina, B., Schusler, M., Mandel, C., Mehmood, A., and Jakoby, R. (2013, January 3\u20136). Wireless high-temperature sensing with a chipless tag based on a dielectric resonator antenna. 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J."},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Guillet, A., Vena, A., Perret, E., and Tedjini, S. (2012, January 25\u201328). Design of a chipless RFID sensor for water level detection. Proceedings of the 2012 15 International Symposium on Antenna Technology and Applied Electromagnetics, Toulouse, France.","DOI":"10.1109\/ANTEM.2012.6262372"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"7484265","DOI":"10.1155\/2018\/7484265","article-title":"A chipless RFID method of 2D localization based on phase acquisition","volume":"2018","author":"Barbot","year":"2018","journal-title":"J. Sens."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"271","DOI":"10.1109\/TAP.2009.2037760","article-title":"Study of a Uniplanar Monopole Antenna for Passive Chipless UWB-RFID Localization System","volume":"58","author":"Hu","year":"2010","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"4008","DOI":"10.1109\/TMTT.2013.2282280","article-title":"Chipless RFID Tag Localization","volume":"61","author":"Anee","year":"2013","journal-title":"IEEE Trans. Microw. Theory Tech."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"5790","DOI":"10.1109\/TAP.2014.2350523","article-title":"A Space-Frequency Technique for Chipless RFID Tag Localization","volume":"62","author":"Rezaiesarlak","year":"2014","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"373","DOI":"10.1109\/LMWC.2016.2549264","article-title":"Localization of Printed Chipless RFID in 3-D Space","volume":"26","author":"Zhang","year":"2016","journal-title":"IEEE Microw. Wirel. Compon. Lett."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"955","DOI":"10.1109\/TMTT.2016.2638842","article-title":"Displacement Sensor Based on Radar Cross-Polarization Measurements","volume":"65","author":"Perret","year":"2017","journal-title":"IEEE Trans. Microw. Theory Tech."},{"key":"ref_16","doi-asserted-by":"crossref","unstructured":"Barbot, N., and Perret, E. (2017, January 19\u201326). Gesture recognition with the chipless RIFD technology. Proceedings of the 2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS), Montreal, QC, Canada.","DOI":"10.23919\/URSIGASS.2017.8104990"},{"key":"ref_17","unstructured":"Vena, A., Perret, E., and Tedjini, S. (2016). Chipless RFID Based on RF Encoding Particle: Realization, Coding and Reading System, Elsevier."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"2982","DOI":"10.1109\/TMTT.2013.2267748","article-title":"A depolarizing chipless RFID tag for robust detection and its FCC compliant UWB reading system","volume":"61","author":"Vena","year":"2013","journal-title":"IEEE Trans. Microw. Theory Tech."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"748","DOI":"10.1109\/7.102710","article-title":"Simple solutions for hyperbolic and related position fixes","volume":"26","author":"Fang","year":"1990","journal-title":"IEEE Trans. Aerosp. Electron. Syst."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"1239","DOI":"10.1109\/7.543845","article-title":"Efficient solution and performance analysis of 3-D position estimation by trilateration","volume":"32","author":"Manolakis","year":"1996","journal-title":"IEEE Trans. Aerosp. Electron. Syst."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"7437","DOI":"10.1364\/AO.41.007437","article-title":"Fast two-dimensional phase-unwrapping algorithm based on sorting by reliability following a noncontinuous path","volume":"41","author":"Burton","year":"2002","journal-title":"Appl. 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