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Optimal Parameter Design of Coarse Alignment for Fiber Optic Gyro Inertial Navigation System

Two different coarse alignment algorithms for Fiber Optic Gyro (FOG) Inertial Navigation System (INS) based on inertial reference frame are discussed in this paper. Both of them are based on gravity vector integration, therefore, the performance of these algorithms is determined by integration time....

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Detalles Bibliográficos
Autores principales: Lu, Baofeng, Wang, Qiuying, Yu, Chunmei, Gao, Wei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4541819/
https://www.ncbi.nlm.nih.gov/pubmed/26121614
http://dx.doi.org/10.3390/s150715006
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author Lu, Baofeng
Wang, Qiuying
Yu, Chunmei
Gao, Wei
author_facet Lu, Baofeng
Wang, Qiuying
Yu, Chunmei
Gao, Wei
author_sort Lu, Baofeng
collection PubMed
description Two different coarse alignment algorithms for Fiber Optic Gyro (FOG) Inertial Navigation System (INS) based on inertial reference frame are discussed in this paper. Both of them are based on gravity vector integration, therefore, the performance of these algorithms is determined by integration time. In previous works, integration time is selected by experience. In order to give a criterion for the selection process, and make the selection of the integration time more accurate, optimal parameter design of these algorithms for FOG INS is performed in this paper. The design process is accomplished based on the analysis of the error characteristics of these two coarse alignment algorithms. Moreover, this analysis and optimal parameter design allow us to make an adequate selection of the most accurate algorithm for FOG INS according to the actual operational conditions. The analysis and simulation results show that the parameter provided by this work is the optimal value, and indicate that in different operational conditions, the coarse alignment algorithms adopted for FOG INS are different in order to achieve better performance. Lastly, the experiment results validate the effectiveness of the proposed algorithm.
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spelling pubmed-45418192015-08-26 Optimal Parameter Design of Coarse Alignment for Fiber Optic Gyro Inertial Navigation System Lu, Baofeng Wang, Qiuying Yu, Chunmei Gao, Wei Sensors (Basel) Article Two different coarse alignment algorithms for Fiber Optic Gyro (FOG) Inertial Navigation System (INS) based on inertial reference frame are discussed in this paper. Both of them are based on gravity vector integration, therefore, the performance of these algorithms is determined by integration time. In previous works, integration time is selected by experience. In order to give a criterion for the selection process, and make the selection of the integration time more accurate, optimal parameter design of these algorithms for FOG INS is performed in this paper. The design process is accomplished based on the analysis of the error characteristics of these two coarse alignment algorithms. Moreover, this analysis and optimal parameter design allow us to make an adequate selection of the most accurate algorithm for FOG INS according to the actual operational conditions. The analysis and simulation results show that the parameter provided by this work is the optimal value, and indicate that in different operational conditions, the coarse alignment algorithms adopted for FOG INS are different in order to achieve better performance. Lastly, the experiment results validate the effectiveness of the proposed algorithm. MDPI 2015-06-25 /pmc/articles/PMC4541819/ /pubmed/26121614 http://dx.doi.org/10.3390/s150715006 Text en © 2015 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Lu, Baofeng
Wang, Qiuying
Yu, Chunmei
Gao, Wei
Optimal Parameter Design of Coarse Alignment for Fiber Optic Gyro Inertial Navigation System
title Optimal Parameter Design of Coarse Alignment for Fiber Optic Gyro Inertial Navigation System
title_full Optimal Parameter Design of Coarse Alignment for Fiber Optic Gyro Inertial Navigation System
title_fullStr Optimal Parameter Design of Coarse Alignment for Fiber Optic Gyro Inertial Navigation System
title_full_unstemmed Optimal Parameter Design of Coarse Alignment for Fiber Optic Gyro Inertial Navigation System
title_short Optimal Parameter Design of Coarse Alignment for Fiber Optic Gyro Inertial Navigation System
title_sort optimal parameter design of coarse alignment for fiber optic gyro inertial navigation system
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4541819/
https://www.ncbi.nlm.nih.gov/pubmed/26121614
http://dx.doi.org/10.3390/s150715006
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