{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,3]],"date-time":"2026-04-03T14:51:45Z","timestamp":1775227905230,"version":"3.50.1"},"reference-count":33,"publisher":"SAGE Publications","issue":"4","license":[{"start":{"date-parts":[[2020,6,29]],"date-time":"2020-06-29T00:00:00Z","timestamp":1593388800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Transactions of the Institute of Measurement and Control"],"published-print":{"date-parts":[[2021,2]]},"abstract":"<jats:p> This study has presented an efficient adaptive unscented Kalman filter (AUKF) with the new measurement model for the strapdown inertial navigation system (SINS) to improve the initial alignment under the marine mooring conditions. Conventional methods of the accurate alignment in the ship\u2019s SINS usually fail to succeed within an acceptable period of time due to the components of external perturbations caused by the movement of sea waves and wind waves. To speed up convergence, AUKF takes into account the impact of the dynamic acceleration on the filter and its gain adaptively tuned by considering the dynamic scale sensed by accelerometers. This approach considerably improved the corrections of the current residual error on the SINS and decreased the influence due to the external perturbations caused by the ship\u2019s movement. Initial alignment algorithm based on AUKF is designed for large misalignment angles and verified by experimental data. The experimental test results show that the proposed algorithm enhanced the convergence speed of SINS initial alignment compared with some state-of-the-art existing approaches. <\/jats:p>","DOI":"10.1177\/0142331220934293","type":"journal-article","created":{"date-parts":[[2020,6,29]],"date-time":"2020-06-29T10:41:54Z","timestamp":1593427314000},"page":"749-758","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":19,"title":["A fast alignment of marine strapdown inertial navigation system based on adaptive unscented Kalman Filter"],"prefix":"10.1177","volume":"43","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0732-9215","authenticated-orcid":false,"given":"Hossein","family":"Rahimi","sequence":"first","affiliation":[{"name":"K. N. Toosi University of Technology, Islamic Republic of Iran"}]},{"given":"Amir Ali","family":"Nikkhah","sequence":"additional","affiliation":[{"name":"K. N. Toosi University of Technology, Islamic Republic of Iran"}]},{"given":"Kaveh","family":"Hooshmandi","sequence":"additional","affiliation":[{"name":"Arak University of Technology, Islamic Republic of Iran"}]}],"member":"179","published-online":{"date-parts":[[2020,6,29]]},"reference":[{"key":"bibr1-0142331220934293","doi-asserted-by":"publisher","DOI":"10.1049\/iet-smt.2012.0071"},{"key":"bibr2-0142331220934293","doi-asserted-by":"publisher","DOI":"10.1109\/MAES.2004.1365016"},{"key":"bibr3-0142331220934293","doi-asserted-by":"publisher","DOI":"10.4156\/jdcta.vol7.issue1.90"},{"key":"bibr4-0142331220934293","doi-asserted-by":"publisher","DOI":"10.1109\/TAES.2011.6034671"},{"key":"bibr5-0142331220934293","doi-asserted-by":"publisher","DOI":"10.1016\/j.oceaneng.2015.01.016"},{"key":"bibr6-0142331220934293","doi-asserted-by":"publisher","DOI":"10.1080\/13873954.2014.952642"},{"key":"bibr7-0142331220934293","doi-asserted-by":"publisher","DOI":"10.1016\/j.scient.2012.01.002"},{"key":"bibr8-0142331220934293","doi-asserted-by":"publisher","DOI":"10.1177\/0142331215586615"},{"key":"bibr9-0142331220934293","unstructured":"IXSEAInc (2013) Phins. available online: http:\/\/www.ixsea.com\/en\/defense\/1.3\/phins.html (accessed 16 April 2013) ."},{"key":"bibr10-0142331220934293","doi-asserted-by":"publisher","DOI":"10.1109\/9.847726"},{"key":"bibr11-0142331220934293","doi-asserted-by":"publisher","DOI":"10.1063\/1.4959561"},{"key":"bibr12-0142331220934293","doi-asserted-by":"publisher","DOI":"10.1016\/j.measurement.2012.08.015"},{"key":"bibr13-0142331220934293","doi-asserted-by":"publisher","DOI":"10.1017\/S0373463312000367"},{"key":"bibr14-0142331220934293","doi-asserted-by":"publisher","DOI":"10.1016\/j.measurement.2014.02.019"},{"key":"bibr15-0142331220934293","doi-asserted-by":"publisher","DOI":"10.1016\/j.measurement.2013.07.013"},{"issue":"3","key":"bibr16-0142331220934293","first-page":"364","volume":"28","author":"Long R","year":"2010","journal-title":"Journal of Northwestern Polytechnical University"},{"key":"bibr17-0142331220934293","doi-asserted-by":"publisher","DOI":"10.1016\/j.jfranklin.2009.09.003"},{"key":"bibr18-0142331220934293","first-page":"1","volume":"17","author":"L\u00fc S","year":"2009","journal-title":"Opt. 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