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This paper presents the original results of OTFS-based person monitoring measurements in the 60 GHz millimeter-wave frequency band under realistic conditions, without the assumption of an integer ratio between the actual delays and Doppler shifts of the reflected components and the corresponding resolution of the OTFS grid. As the main contribution of the paper, we propose the use of the persistent homology technique as a method for processing gathered delay-Doppler responses. We highlight the advantages of the persistent homology approach over the standard constant false alarm rate target detector for selected scenarios.<\/jats:p>","DOI":"10.3390\/s23042224","type":"journal-article","created":{"date-parts":[[2023,2,16]],"date-time":"2023-02-16T04:01:52Z","timestamp":1676520112000},"page":"2224","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Persistent Homology Approach for Human Presence Detection from 60 GHz OTFS Transmissions"],"prefix":"10.3390","volume":"23","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2926-5507","authenticated-orcid":false,"given":"Roman","family":"Mar\u0161\u00e1lek","sequence":"first","affiliation":[{"name":"Department of Radio Electronics, Brno University of Technology, 601 90 Brno, Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Radim","family":"Zedka","sequence":"additional","affiliation":[{"name":"Department of Radio Electronics, Brno University of Technology, 601 90 Brno, Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Erich","family":"Z\u00f6chmann","sequence":"additional","affiliation":[{"name":"Department of Radio Electronics, Brno University of Technology, 601 90 Brno, Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Josef","family":"Vychodil","sequence":"additional","affiliation":[{"name":"Department of Radio Electronics, Brno University of Technology, 601 90 Brno, Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8495-8069","authenticated-orcid":false,"given":"Radek","family":"Z\u00e1vorka","sequence":"additional","affiliation":[{"name":"Department of Radio Electronics, Brno University of Technology, 601 90 Brno, Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1365-1438","authenticated-orcid":false,"given":"Golsa","family":"Ghiaasi","sequence":"additional","affiliation":[{"name":"Department of Radio Electronics, Brno University of Technology, 601 90 Brno, Czech Republic"},{"name":"Silicon Austria Labs GmbH, 4040 Linz, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ji\u0159\u00ed","family":"Blumenstein","sequence":"additional","affiliation":[{"name":"Department of Radio Electronics, Brno University of Technology, 601 90 Brno, Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,2,16]]},"reference":[{"key":"ref_1","unstructured":"Li, X., and Younes, R. 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