A robust cascaded strategy of in-motion alignment for inertial navigation systems
Inertial navigation system needs to be initialized through the alignment process, before the transition into the navigation stage can be made. In this article, a robust cascaded strategy of alignment which aims to provide an automatic operating alignment strategy for different application scenarios...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Hindawi - SAGE Publishing
2017-09-01
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| Series: | International Journal of Distributed Sensor Networks |
| Online Access: | https://doi.org/10.1177/1550147717732919 |
| _version_ | 1797763218246991872 |
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| author | Wanke Liu Rui Duan Feng Zhu |
| author_facet | Wanke Liu Rui Duan Feng Zhu |
| author_sort | Wanke Liu |
| collection | DOAJ |
| description | Inertial navigation system needs to be initialized through the alignment process, before the transition into the navigation stage can be made. In this article, a robust cascaded strategy of alignment which aims to provide an automatic operating alignment strategy for different application scenarios is proposed. The robust cascaded strategy of alignment utilizes the advantages of several alignment methods to form a cascaded alignment strategy. As a result, the robust cascaded strategy of alignment can be utilized in applications with different grade inertial measurement units under complex dynamic condition. In addition, several control measures are added into the robust cascaded strategy of alignment process to increase its robustness and to ensure that acceptable performance may be attained. A filed test using two inertial measurement units (tactical-grade FSAS and micro-electro-mechanical-system-grade SBG) shows that the proposed robust cascaded strategy of alignment can achieve alignment under various dynamic conditions, such as low speed motion, turns, stationary positions, and straight motion. The mean heading error and level angle error are 0.10° and −0.08° for the FSAS, respectively, and −0.44° and −0.02° for the SBG, respectively. The root mean square of the heading error and level angle error for the FSAS are 2.08° and 0.50°, respectively, while those for the SBG are 2.95° and 1.44°, respectively. |
| first_indexed | 2024-03-12T19:39:27Z |
| format | Article |
| id | doaj.art-7831e634a6064d978d1b682fc146cfac |
| institution | Directory Open Access Journal |
| issn | 1550-1477 |
| language | English |
| last_indexed | 2024-03-12T19:39:27Z |
| publishDate | 2017-09-01 |
| publisher | Hindawi - SAGE Publishing |
| record_format | Article |
| series | International Journal of Distributed Sensor Networks |
| spelling | doaj.art-7831e634a6064d978d1b682fc146cfac2023-08-02T03:58:18ZengHindawi - SAGE PublishingInternational Journal of Distributed Sensor Networks1550-14772017-09-011310.1177/1550147717732919A robust cascaded strategy of in-motion alignment for inertial navigation systemsWanke Liu0Rui Duan1Feng Zhu2Key Laboratory of Geospace Environment and Geodesy, Ministry of Education, Wuhan University, Wuhan, ChinaSchool of Geodesy and Geomatics, Wuhan University, Wuhan, ChinaSchool of Geodesy and Geomatics, Wuhan University, Wuhan, ChinaInertial navigation system needs to be initialized through the alignment process, before the transition into the navigation stage can be made. In this article, a robust cascaded strategy of alignment which aims to provide an automatic operating alignment strategy for different application scenarios is proposed. The robust cascaded strategy of alignment utilizes the advantages of several alignment methods to form a cascaded alignment strategy. As a result, the robust cascaded strategy of alignment can be utilized in applications with different grade inertial measurement units under complex dynamic condition. In addition, several control measures are added into the robust cascaded strategy of alignment process to increase its robustness and to ensure that acceptable performance may be attained. A filed test using two inertial measurement units (tactical-grade FSAS and micro-electro-mechanical-system-grade SBG) shows that the proposed robust cascaded strategy of alignment can achieve alignment under various dynamic conditions, such as low speed motion, turns, stationary positions, and straight motion. The mean heading error and level angle error are 0.10° and −0.08° for the FSAS, respectively, and −0.44° and −0.02° for the SBG, respectively. The root mean square of the heading error and level angle error for the FSAS are 2.08° and 0.50°, respectively, while those for the SBG are 2.95° and 1.44°, respectively.https://doi.org/10.1177/1550147717732919 |
| spellingShingle | Wanke Liu Rui Duan Feng Zhu A robust cascaded strategy of in-motion alignment for inertial navigation systems International Journal of Distributed Sensor Networks |
| title | A robust cascaded strategy of in-motion alignment for inertial navigation systems |
| title_full | A robust cascaded strategy of in-motion alignment for inertial navigation systems |
| title_fullStr | A robust cascaded strategy of in-motion alignment for inertial navigation systems |
| title_full_unstemmed | A robust cascaded strategy of in-motion alignment for inertial navigation systems |
| title_short | A robust cascaded strategy of in-motion alignment for inertial navigation systems |
| title_sort | robust cascaded strategy of in motion alignment for inertial navigation systems |
| url | https://doi.org/10.1177/1550147717732919 |
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