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Here, estimates of the relative position of a single hydrophone mounted on a small underwater platform are used only while recording a 2-min-long low-frequency (200\u2013300\u2009Hz) transmission from a beacon source located at depth \u223c1100\u2009m and ranges up to \u223c148\u2009km in the vicinity of two seamounts. Accounting for the hydrophone motion in the matched-filtering process during the source transmission allows to estimate the bearing of this single beacon source for navigation purposes despite environmental complexity.<\/jats:p>","DOI":"10.1121\/10.0046290","type":"journal-article","created":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T12:54:21Z","timestamp":1788267261000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":0,"title":["Single-hydrophone bearing estimation for long-range underwater navigation"],"prefix":"10.1121","volume":"6","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4191-3044","authenticated-orcid":false,"given":"Karim G.","family":"Sabra","sequence":"first","affiliation":[{"name":"Georgia Institute of Technology 1 , Atlanta, Georgia 30306,","place":["USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0000-8709-9565","authenticated-orcid":false,"given":"Davis","family":"Rider","sequence":"additional","affiliation":[{"name":"Georgia Institute of Technology 1 , Atlanta, Georgia 30306,","place":["USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3505-571X","authenticated-orcid":false,"given":"Laurent","family":"Grare","sequence":"additional","affiliation":[{"name":"Scripps Institution of Oceanography, University of California San Diego 2 , La Jolla, California 92093,","place":["USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7926-7602","authenticated-orcid":false,"given":"Matthew A.","family":"Dzieciuch","sequence":"additional","affiliation":[{"name":"Scripps Institution of Oceanography, University of California San Diego 2 , La Jolla, California 92093,","place":["USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9808-1563","authenticated-orcid":false,"given":"Luc","family":"Lenain","sequence":"additional","affiliation":[{"name":"Scripps Institution of Oceanography, University of California San Diego 2 , La Jolla, California 92093,","place":["USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"231","published-online":{"date-parts":[[2026,9,1]]},"reference":[{"issue":"4","key":"2026090108541456300_c1","doi-asserted-by":"publisher","first-page":"1091","DOI":"10.1109\/7.165371","article-title":"An efficient method of passive emitter location","volume":"28","year":"1992","journal-title":"IEEE Trans. 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