{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,14]],"date-time":"2026-07-14T11:26:50Z","timestamp":1784028410975,"version":"3.55.0"},"reference-count":54,"publisher":"MDPI AG","issue":"19","license":[{"start":{"date-parts":[[2024,9,29]],"date-time":"2024-09-29T00:00:00Z","timestamp":1727568000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Natural Science Foundation of China","award":["62101176"],"award-info":[{"award-number":["62101176"]}]},{"name":"National Natural Science Foundation of China","award":["62371393"],"award-info":[{"award-number":["62371393"]}]},{"name":"National Natural Science Foundation of China","award":["242102211011"],"award-info":[{"award-number":["242102211011"]}]},{"name":"National Natural Science Foundation of China","award":["B2022-3"],"award-info":[{"award-number":["B2022-3"]}]},{"name":"Scientific and Technological Project in Henan Province","award":["62101176"],"award-info":[{"award-number":["62101176"]}]},{"name":"Scientific and Technological Project in Henan Province","award":["62371393"],"award-info":[{"award-number":["62371393"]}]},{"name":"Scientific and Technological Project in Henan Province","award":["242102211011"],"award-info":[{"award-number":["242102211011"]}]},{"name":"Scientific and Technological Project in Henan Province","award":["B2022-3"],"award-info":[{"award-number":["B2022-3"]}]},{"name":"Doctoral Foundation of Henan Polytechnic University","award":["62101176"],"award-info":[{"award-number":["62101176"]}]},{"name":"Doctoral Foundation of Henan Polytechnic University","award":["62371393"],"award-info":[{"award-number":["62371393"]}]},{"name":"Doctoral Foundation of Henan Polytechnic University","award":["242102211011"],"award-info":[{"award-number":["242102211011"]}]},{"name":"Doctoral Foundation of Henan Polytechnic University","award":["B2022-3"],"award-info":[{"award-number":["B2022-3"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>This paper presents a strategy called the alternating iterative minimization method (AIMM), aimed at enhancing the precision of direction of arrival (DOA) estimation when utilizing an acoustic vector sensor array (AVSA) with unknown swing deviation elements (SDEs). The AVSA model with unknown SDEs is formulated by incorporating the swing deviation parameter. Later, to estimate the swing deviation matrix (SDM) and the sparse signal power by using the alternating iteration method, the auxiliary cost functions with respect to SDM and the sparse signal power are formulated based on the regularized weighted least squares (RWLS) and regularized covariance matrix fitting (RCMF) criteria. Furthermore, their analytical expressions have also been quantified. In order to mitigate the effect of unknown SDEs on the accuracy of DOA estimation, any sub-time segment (STS) in the dataset is selected as the reference to convert the received data of different STS into the reference STS using the estimated SDM. The simulation and experimental outcomes conclusively represent the effectiveness of the suggested TSIM approach using AVSA in handling unknown SDEs.<\/jats:p>","DOI":"10.3390\/rs16193634","type":"journal-article","created":{"date-parts":[[2024,9,30]],"date-time":"2024-09-30T05:45:27Z","timestamp":1727675127000},"page":"3634","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Robust Underwater Direction-of-Arrival Estimation Method Using Acoustic Sensor Array under Unknown Swing Deviation Elements"],"prefix":"10.3390","volume":"16","author":[{"given":"Weidong","family":"Wang","sequence":"first","affiliation":[{"name":"School of Physics and Electronic Information Engineering, Henan Polytechnic University, Jiaozuo 454000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Linya","family":"Ma","sequence":"additional","affiliation":[{"name":"School of Physics and Electronic Information Engineering, Henan Polytechnic University, Jiaozuo 454000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0847-9701","authenticated-orcid":false,"given":"Wentao","family":"Shi","sequence":"additional","affiliation":[{"name":"Ocean Institute, Northwestern Polytechnical University, Taicang 215400, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wasiq","family":"Ali","sequence":"additional","affiliation":[{"name":"College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,9,29]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2481","DOI":"10.1109\/78.317869","article-title":"Acoustic vector-sensor array processing","volume":"42","author":"Nehorai","year":"1994","journal-title":"IEEE Trans. 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