Navigation Grade MEMS IMU for A Satellite
This paper presents a navigation grade micro-electromechanical system (MEMS) inertial measurement unit (IMU) that was successfully applied for the first time in the Lobster-Eye X-ray Satellite in July 2020. A six-axis MEMS gyroscope redundant configuration is adopted in the unit to improve the perfo...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-02-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/12/2/151 |
| _version_ | 1827603817947987968 |
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| author | Wanliang Zhao Yuxiang Cheng Sihan Zhao Xiaomao Hu Yijie Rong Jie Duan Jiawei Chen |
| author_facet | Wanliang Zhao Yuxiang Cheng Sihan Zhao Xiaomao Hu Yijie Rong Jie Duan Jiawei Chen |
| author_sort | Wanliang Zhao |
| collection | DOAJ |
| description | This paper presents a navigation grade micro-electromechanical system (MEMS) inertial measurement unit (IMU) that was successfully applied for the first time in the Lobster-Eye X-ray Satellite in July 2020. A six-axis MEMS gyroscope redundant configuration is adopted in the unit to improve the performance through mutual calibration of a set of two-axis gyroscopes in the same direction. In the paper, a satisfactory precision of the gyroscope is achieved by customized and self-calibration gyroscopes whose parameters are adjusted at the expense of bandwidth and dynamics. According to the in-orbit measured data, the MEMS IMU provides an outstanding precision of better than 0.02 °/h (1σ) with excellent bias instability of 0.006 °/h and angle random walk (ARW) of around 0.003 °/h<sup>1/2</sup>. It is the highest precision MEMS IMU for commercial aerospace use ever publicly reported in the world to date. |
| first_indexed | 2024-03-09T05:46:01Z |
| format | Article |
| id | doaj.art-544f77cff2484878bb60eb989285286b |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-09T05:46:01Z |
| publishDate | 2021-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-544f77cff2484878bb60eb989285286b2023-12-03T12:20:37ZengMDPI AGMicromachines2072-666X2021-02-0112215110.3390/mi12020151Navigation Grade MEMS IMU for A SatelliteWanliang Zhao0Yuxiang Cheng1Sihan Zhao2Xiaomao Hu3Yijie Rong4Jie Duan5Jiawei Chen6Shanghai Aerospace Control Technology Institute, 1555 Zhongchun Road, Shanghai 201109, ChinaShanghai Aerospace Control Technology Institute, 1555 Zhongchun Road, Shanghai 201109, ChinaShanghai Aerospace Control Technology Institute, 1555 Zhongchun Road, Shanghai 201109, ChinaShanghai Aerospace Control Technology Institute, 1555 Zhongchun Road, Shanghai 201109, ChinaShanghai Aerospace Control Technology Institute, 1555 Zhongchun Road, Shanghai 201109, ChinaShanghai Aerospace Control Technology Institute, 1555 Zhongchun Road, Shanghai 201109, ChinaShanghai Aerospace Control Technology Institute, 1555 Zhongchun Road, Shanghai 201109, ChinaThis paper presents a navigation grade micro-electromechanical system (MEMS) inertial measurement unit (IMU) that was successfully applied for the first time in the Lobster-Eye X-ray Satellite in July 2020. A six-axis MEMS gyroscope redundant configuration is adopted in the unit to improve the performance through mutual calibration of a set of two-axis gyroscopes in the same direction. In the paper, a satisfactory precision of the gyroscope is achieved by customized and self-calibration gyroscopes whose parameters are adjusted at the expense of bandwidth and dynamics. According to the in-orbit measured data, the MEMS IMU provides an outstanding precision of better than 0.02 °/h (1σ) with excellent bias instability of 0.006 °/h and angle random walk (ARW) of around 0.003 °/h<sup>1/2</sup>. It is the highest precision MEMS IMU for commercial aerospace use ever publicly reported in the world to date.https://www.mdpi.com/2072-666X/12/2/151IMUMEMS gyroscopessatellitenavigation gradecommercial aerospace |
| spellingShingle | Wanliang Zhao Yuxiang Cheng Sihan Zhao Xiaomao Hu Yijie Rong Jie Duan Jiawei Chen Navigation Grade MEMS IMU for A Satellite Micromachines IMU MEMS gyroscopes satellite navigation grade commercial aerospace |
| title | Navigation Grade MEMS IMU for A Satellite |
| title_full | Navigation Grade MEMS IMU for A Satellite |
| title_fullStr | Navigation Grade MEMS IMU for A Satellite |
| title_full_unstemmed | Navigation Grade MEMS IMU for A Satellite |
| title_short | Navigation Grade MEMS IMU for A Satellite |
| title_sort | navigation grade mems imu for a satellite |
| topic | IMU MEMS gyroscopes satellite navigation grade commercial aerospace |
| url | https://www.mdpi.com/2072-666X/12/2/151 |
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