Error Modeling of Fiber Optic Gyroscope Universal Time Measurement
Since the fiber optic gyroscope (FOG) is rigidly strapped down to the earth’s crust, there are various errors that affect the universal time (UT1) measurements. In this paper, the errors caused by various physical factors and mechanisms are analyzed in detail, with precession and nutation errors bei...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-12-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/15/1/24 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849219699740508160 |
|---|---|
| author | Zishuai Wang Yingmin Yi Chunyi Su Jinsheng Zhang Yiwei Yuan Yuchen Zhao |
| author_facet | Zishuai Wang Yingmin Yi Chunyi Su Jinsheng Zhang Yiwei Yuan Yuchen Zhao |
| author_sort | Zishuai Wang |
| collection | DOAJ |
| description | Since the fiber optic gyroscope (FOG) is rigidly strapped down to the earth’s crust, there are various errors that affect the universal time (UT1) measurements. In this paper, the errors caused by various physical factors and mechanisms are analyzed in detail, with precession and nutation errors being taken into account, and modeling of the observation equations based on precession and nutation error correction is proposed. The mapping relationship with UT1 is established based on this observation equation; after the corresponding error correction and VLBI calibration, the high-accuracy solution of UT1 is finally completed. Through 14-day measurement experiments under a room temperature environment without any vibration isolation and magnetic shielding devices, the error variation of UT1 solution compared with the earth orientation parameter (EOP) 14 C04 data is calculated at less than 3.57 ms, with UT1 solution accuracy improved by 56% compared with the traditional method. These results indicate that this work facilitates the study of giant FOG error modeling and correction, advancing our understanding of errors in giant FOG measurements and improving the accuracy of UT1 solution. |
| format | Article |
| id | doaj-art-a0817ee5b3aa42c3b3b224f27c24d3f0 |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-a0817ee5b3aa42c3b3b224f27c24d3f02025-01-10T13:14:11ZengMDPI AGApplied Sciences2076-34172024-12-011512410.3390/app15010024Error Modeling of Fiber Optic Gyroscope Universal Time MeasurementZishuai Wang0Yingmin Yi1Chunyi Su2Jinsheng Zhang3Yiwei Yuan4Yuchen Zhao5School of Automation and Information Engineering, Xi’an University of Technology, Xi’an 710048, ChinaSchool of Automation and Information Engineering, Xi’an University of Technology, Xi’an 710048, ChinaDepartment of Mechanical Engineering, Concordia University, Montreal, QC H3G 1M8, CanadaSchool of Automation and Information Engineering, Xi’an University of Technology, Xi’an 710048, ChinaSchool of Automation and Information Engineering, Xi’an University of Technology, Xi’an 710048, ChinaSchool of Automation and Information Engineering, Xi’an University of Technology, Xi’an 710048, ChinaSince the fiber optic gyroscope (FOG) is rigidly strapped down to the earth’s crust, there are various errors that affect the universal time (UT1) measurements. In this paper, the errors caused by various physical factors and mechanisms are analyzed in detail, with precession and nutation errors being taken into account, and modeling of the observation equations based on precession and nutation error correction is proposed. The mapping relationship with UT1 is established based on this observation equation; after the corresponding error correction and VLBI calibration, the high-accuracy solution of UT1 is finally completed. Through 14-day measurement experiments under a room temperature environment without any vibration isolation and magnetic shielding devices, the error variation of UT1 solution compared with the earth orientation parameter (EOP) 14 C04 data is calculated at less than 3.57 ms, with UT1 solution accuracy improved by 56% compared with the traditional method. These results indicate that this work facilitates the study of giant FOG error modeling and correction, advancing our understanding of errors in giant FOG measurements and improving the accuracy of UT1 solution.https://www.mdpi.com/2076-3417/15/1/24fiber optic gyroscopeerror modelinguniversal time measurement |
| spellingShingle | Zishuai Wang Yingmin Yi Chunyi Su Jinsheng Zhang Yiwei Yuan Yuchen Zhao Error Modeling of Fiber Optic Gyroscope Universal Time Measurement Applied Sciences fiber optic gyroscope error modeling universal time measurement |
| title | Error Modeling of Fiber Optic Gyroscope Universal Time Measurement |
| title_full | Error Modeling of Fiber Optic Gyroscope Universal Time Measurement |
| title_fullStr | Error Modeling of Fiber Optic Gyroscope Universal Time Measurement |
| title_full_unstemmed | Error Modeling of Fiber Optic Gyroscope Universal Time Measurement |
| title_short | Error Modeling of Fiber Optic Gyroscope Universal Time Measurement |
| title_sort | error modeling of fiber optic gyroscope universal time measurement |
| topic | fiber optic gyroscope error modeling universal time measurement |
| url | https://www.mdpi.com/2076-3417/15/1/24 |
| work_keys_str_mv | AT zishuaiwang errormodelingoffiberopticgyroscopeuniversaltimemeasurement AT yingminyi errormodelingoffiberopticgyroscopeuniversaltimemeasurement AT chunyisu errormodelingoffiberopticgyroscopeuniversaltimemeasurement AT jinshengzhang errormodelingoffiberopticgyroscopeuniversaltimemeasurement AT yiweiyuan errormodelingoffiberopticgyroscopeuniversaltimemeasurement AT yuchenzhao errormodelingoffiberopticgyroscopeuniversaltimemeasurement |