Towards an Improvement of Magnetic Compass Accuracy and Adjustment

Many ship accidents have arisen from an error in course indication. Bearing in mind that the actual errors in gyrocompass and satellite compass are really minor, they may be considered valid to be input into an autopilot provided that any failure in such devices is controlled by means of a secondary...

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Detalhes bibliográficos
Autores: Basterrechea Iribar, Imanol, Sotés Cedrón, Iranzu, Uriarte Aretxabala, José Ignacio
Formato: artículo
Fecha de publicación:2016
País:España
Recursos:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/71173
Acesso em linha:http://hdl.handle.net/10810/71173
Access Level:acceso abierto
Palavra-chave:Compass indicator
Magnetic compass
Compass adjustment
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spelling Towards an Improvement of Magnetic Compass Accuracy and AdjustmentBasterrechea Iribar, ImanolSotés Cedrón, IranzuUriarte Aretxabala, José IgnacioCompass indicatorMagnetic compassCompass adjustmentMany ship accidents have arisen from an error in course indication. Bearing in mind that the actual errors in gyrocompass and satellite compass are really minor, they may be considered valid to be input into an autopilot provided that any failure in such devices is controlled by means of a secondary heading source such as a magnetic compass. However, magnetic compass deviation may be significant and its heading should be corrected before being input to the autopilot. The errors caused by the geographic variability of the deviation should also be taken into account. Moreover, the current way to reduce the deviation requires that the ship is un-berthed to execute a complete swing. The aim of this article is to obtain a ship magnetic model by means of an algorithm based on least squares to correct magnetic compass heading input in the autopilot and to permit definitive magnetic compass compensation without swinging the ship through 360°.This work has been performed by the University of the Basque Country within the project “COMPASS”, which has been financed by the Basque Agency for Business Development (SPRI) under the grant number SA-2012/00339.Cambridge University Press202520252016info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/71173reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoIngléshttps://doi.org/10.1017/S0373463316000138info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/3.0/es/© 2016 The Royal Institute of Navigationoai:addi.ehu.eus:10810/711732026-06-18T09:23:17Z
dc.title.none.fl_str_mv Towards an Improvement of Magnetic Compass Accuracy and Adjustment
title Towards an Improvement of Magnetic Compass Accuracy and Adjustment
spellingShingle Towards an Improvement of Magnetic Compass Accuracy and Adjustment
Basterrechea Iribar, Imanol
Compass indicator
Magnetic compass
Compass adjustment
title_short Towards an Improvement of Magnetic Compass Accuracy and Adjustment
title_full Towards an Improvement of Magnetic Compass Accuracy and Adjustment
title_fullStr Towards an Improvement of Magnetic Compass Accuracy and Adjustment
title_full_unstemmed Towards an Improvement of Magnetic Compass Accuracy and Adjustment
title_sort Towards an Improvement of Magnetic Compass Accuracy and Adjustment
dc.creator.none.fl_str_mv Basterrechea Iribar, Imanol
Sotés Cedrón, Iranzu
Uriarte Aretxabala, José Ignacio
author Basterrechea Iribar, Imanol
author_facet Basterrechea Iribar, Imanol
Sotés Cedrón, Iranzu
Uriarte Aretxabala, José Ignacio
author_role author
author2 Sotés Cedrón, Iranzu
Uriarte Aretxabala, José Ignacio
author2_role author
author
dc.subject.none.fl_str_mv Compass indicator
Magnetic compass
Compass adjustment
topic Compass indicator
Magnetic compass
Compass adjustment
description Many ship accidents have arisen from an error in course indication. Bearing in mind that the actual errors in gyrocompass and satellite compass are really minor, they may be considered valid to be input into an autopilot provided that any failure in such devices is controlled by means of a secondary heading source such as a magnetic compass. However, magnetic compass deviation may be significant and its heading should be corrected before being input to the autopilot. The errors caused by the geographic variability of the deviation should also be taken into account. Moreover, the current way to reduce the deviation requires that the ship is un-berthed to execute a complete swing. The aim of this article is to obtain a ship magnetic model by means of an algorithm based on least squares to correct magnetic compass heading input in the autopilot and to permit definitive magnetic compass compensation without swinging the ship through 360°.
publishDate 2016
dc.date.none.fl_str_mv 2016
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/71173
url http://hdl.handle.net/10810/71173
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1017/S0373463316000138
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
© 2016 The Royal Institute of Navigation
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/3.0/es/
© 2016 The Royal Institute of Navigation
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Cambridge University Press
publisher.none.fl_str_mv Cambridge University Press
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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