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The Optimal Design of Modulation Angular Rate for MEMS-Based Rotary Semi-SINS

In previous studies, the semi-strapdown inertial navigation system (SSINS), based on microelectromechanical system (MEMS) sensors, had realized cross-range measurement of attitude information of high-spinning projectiles through construction of a “spin reduction” platform of the roll axis. However,...

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Autores principales: Zhang, Jiayu, Li, Jie, Che, Xiaorui, Zhang, Xi, Hu, Chenjun, Feng, Kaiqiang, Xu, Tingjin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6412288/
https://www.ncbi.nlm.nih.gov/pubmed/30744194
http://dx.doi.org/10.3390/mi10020111
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author Zhang, Jiayu
Li, Jie
Che, Xiaorui
Zhang, Xi
Hu, Chenjun
Feng, Kaiqiang
Xu, Tingjin
author_facet Zhang, Jiayu
Li, Jie
Che, Xiaorui
Zhang, Xi
Hu, Chenjun
Feng, Kaiqiang
Xu, Tingjin
author_sort Zhang, Jiayu
collection PubMed
description In previous studies, the semi-strapdown inertial navigation system (SSINS), based on microelectromechanical system (MEMS) sensors, had realized cross-range measurement of attitude information of high-spinning projectiles through construction of a “spin reduction” platform of the roll axis. However, further improvement of its measurement accuracy has been difficult, due to the inertial sensor error. In order to enhance the navigational accuracy, a periodically rotating method is utilized to compensate for sensor error, which is called rotation modulation. At present, the rotation scheme, as one of the core technologies, has been studied by a lot of researchers. It is known that the modulation angular rate is the main factor affecting the effectiveness of error modulation. Different from the long-endurance and low-dynamic motion characteristics of ships, however, the short-endurance and high-dynamic characteristics of the high-spinning projectile not only require the modulation angular rate to be as fast as possible but, also, the influence of the rotation speed error caused by rotating mechanism errors cannot be ignored. Combined with the rotation speed error of the rotating mechanism, this paper explored the relationship between modulation angular rate, device error, and the navigation error, and then proposed a design method for optimal modulation angular rate. Experiments were carried out to validate the performance of the method. In addition, the proposed method is applicable for rotation modulation systems with different types of motors as the rotating mechanism.
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spelling pubmed-64122882019-04-09 The Optimal Design of Modulation Angular Rate for MEMS-Based Rotary Semi-SINS Zhang, Jiayu Li, Jie Che, Xiaorui Zhang, Xi Hu, Chenjun Feng, Kaiqiang Xu, Tingjin Micromachines (Basel) Article In previous studies, the semi-strapdown inertial navigation system (SSINS), based on microelectromechanical system (MEMS) sensors, had realized cross-range measurement of attitude information of high-spinning projectiles through construction of a “spin reduction” platform of the roll axis. However, further improvement of its measurement accuracy has been difficult, due to the inertial sensor error. In order to enhance the navigational accuracy, a periodically rotating method is utilized to compensate for sensor error, which is called rotation modulation. At present, the rotation scheme, as one of the core technologies, has been studied by a lot of researchers. It is known that the modulation angular rate is the main factor affecting the effectiveness of error modulation. Different from the long-endurance and low-dynamic motion characteristics of ships, however, the short-endurance and high-dynamic characteristics of the high-spinning projectile not only require the modulation angular rate to be as fast as possible but, also, the influence of the rotation speed error caused by rotating mechanism errors cannot be ignored. Combined with the rotation speed error of the rotating mechanism, this paper explored the relationship between modulation angular rate, device error, and the navigation error, and then proposed a design method for optimal modulation angular rate. Experiments were carried out to validate the performance of the method. In addition, the proposed method is applicable for rotation modulation systems with different types of motors as the rotating mechanism. MDPI 2019-02-10 /pmc/articles/PMC6412288/ /pubmed/30744194 http://dx.doi.org/10.3390/mi10020111 Text en © 2019 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 (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhang, Jiayu
Li, Jie
Che, Xiaorui
Zhang, Xi
Hu, Chenjun
Feng, Kaiqiang
Xu, Tingjin
The Optimal Design of Modulation Angular Rate for MEMS-Based Rotary Semi-SINS
title The Optimal Design of Modulation Angular Rate for MEMS-Based Rotary Semi-SINS
title_full The Optimal Design of Modulation Angular Rate for MEMS-Based Rotary Semi-SINS
title_fullStr The Optimal Design of Modulation Angular Rate for MEMS-Based Rotary Semi-SINS
title_full_unstemmed The Optimal Design of Modulation Angular Rate for MEMS-Based Rotary Semi-SINS
title_short The Optimal Design of Modulation Angular Rate for MEMS-Based Rotary Semi-SINS
title_sort optimal design of modulation angular rate for mems-based rotary semi-sins
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6412288/
https://www.ncbi.nlm.nih.gov/pubmed/30744194
http://dx.doi.org/10.3390/mi10020111
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