Improving the Orbit Injection Accuracy of a Launch Vehicle by Using a Mode-Switching Strategy for a Dual-Axis Rotational Inertial Navigation System
Due to a short flight time, the dual-axis rotational inertial navigation system carried by some launch vehicles or missiles is often only used for self-calibration and self-alignment. It is generally in the strap-down state rather than the rotation modulation state during flight. This wastes the pre...
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MDPI AG
2024-12-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/25/1/177 |
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| author | Jun Li Shifeng Zhang Zhenlin Ma |
| author_facet | Jun Li Shifeng Zhang Zhenlin Ma |
| author_sort | Jun Li |
| collection | DOAJ |
| description | Due to a short flight time, the dual-axis rotational inertial navigation system carried by some launch vehicles or missiles is often only used for self-calibration and self-alignment. It is generally in the strap-down state rather than the rotation modulation state during flight. This wastes the precision potential of the navigation system. Therefore, a mode-switching strategy is proposed in this paper to improve the orbit injection accuracy of a launch vehicle. The rotational navigation system of the launch vehicle is in the near-platform mode or strap-down mode at different periods. It is switched in a timely manner to take advantage of the various modes. Numerical simulation and turntable experiment results show that compared with the traditional strap-down inertial mode, the mode-switching strategy can effectively improve the orbit accuracy of the launch vehicle by about 12% to 13% and hardly increases any costs. |
| format | Article |
| id | doaj-art-1198719d0c7a4277b654ebcecbd756fe |
| institution | Kabale University |
| issn | 1424-8220 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj-art-1198719d0c7a4277b654ebcecbd756fe2025-01-10T13:21:08ZengMDPI AGSensors1424-82202024-12-0125117710.3390/s25010177Improving the Orbit Injection Accuracy of a Launch Vehicle by Using a Mode-Switching Strategy for a Dual-Axis Rotational Inertial Navigation SystemJun Li0Shifeng Zhang1Zhenlin Ma2College of Aerospace and Engineering, National University of Defense Technology, Changsha 410073, ChinaCollege of Aerospace and Engineering, National University of Defense Technology, Changsha 410073, ChinaCollege of Aerospace and Engineering, National University of Defense Technology, Changsha 410073, ChinaDue to a short flight time, the dual-axis rotational inertial navigation system carried by some launch vehicles or missiles is often only used for self-calibration and self-alignment. It is generally in the strap-down state rather than the rotation modulation state during flight. This wastes the precision potential of the navigation system. Therefore, a mode-switching strategy is proposed in this paper to improve the orbit injection accuracy of a launch vehicle. The rotational navigation system of the launch vehicle is in the near-platform mode or strap-down mode at different periods. It is switched in a timely manner to take advantage of the various modes. Numerical simulation and turntable experiment results show that compared with the traditional strap-down inertial mode, the mode-switching strategy can effectively improve the orbit accuracy of the launch vehicle by about 12% to 13% and hardly increases any costs.https://www.mdpi.com/1424-8220/25/1/177rotational inertial navigation systemorbit injection accuracymode-switching strategy |
| spellingShingle | Jun Li Shifeng Zhang Zhenlin Ma Improving the Orbit Injection Accuracy of a Launch Vehicle by Using a Mode-Switching Strategy for a Dual-Axis Rotational Inertial Navigation System Sensors rotational inertial navigation system orbit injection accuracy mode-switching strategy |
| title | Improving the Orbit Injection Accuracy of a Launch Vehicle by Using a Mode-Switching Strategy for a Dual-Axis Rotational Inertial Navigation System |
| title_full | Improving the Orbit Injection Accuracy of a Launch Vehicle by Using a Mode-Switching Strategy for a Dual-Axis Rotational Inertial Navigation System |
| title_fullStr | Improving the Orbit Injection Accuracy of a Launch Vehicle by Using a Mode-Switching Strategy for a Dual-Axis Rotational Inertial Navigation System |
| title_full_unstemmed | Improving the Orbit Injection Accuracy of a Launch Vehicle by Using a Mode-Switching Strategy for a Dual-Axis Rotational Inertial Navigation System |
| title_short | Improving the Orbit Injection Accuracy of a Launch Vehicle by Using a Mode-Switching Strategy for a Dual-Axis Rotational Inertial Navigation System |
| title_sort | improving the orbit injection accuracy of a launch vehicle by using a mode switching strategy for a dual axis rotational inertial navigation system |
| topic | rotational inertial navigation system orbit injection accuracy mode-switching strategy |
| url | https://www.mdpi.com/1424-8220/25/1/177 |
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