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| A Method for Identifying Error Coefficients of Inertial Navigation Platform in Centrifuge Test |
| Received:October 21, 2017 Revised:January 15, 2018 |
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| DOI：10.7643/ issn.1672-9242.2018.01.001 |
| KeyWord:inertial navigation platform centrifuge test identification of error coefficients Fourier analysis |
| Author | Institution |
| XU Yong-fei |
College of Aerospace Science and Engineering, National University of Defense Technology, Changsha , China |
| ZHANG Shi-feng |
College of Aerospace Science and Engineering, National University of Defense Technology, Changsha , China |
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| Abstract: |
| In allusion to identification of error coefficients for inertial navigation platform in centrifuge test, a method based on Fourier analysis was proposed. Firstly, output equation of gyro and accelerometer in centrifuge test was derived according to the error model for inertial device. The output was composed of different order harmonics. Then, the amplitude of each order harmonic was obtained by Fourier analysis. Finally, the error coefficients were obtained based on the relationship between harmonic amplitude expressions and error coefficients. The simulation results show that the proposed method is effective. |
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