| 许永飞,张士峰.一种基于离心机试验辨识惯导平台误差系数的方法[J].装备环境工程,2018,15(1):1-5. XU Yong-fei,ZHANG Shi-feng.A Method for Identifying Error Coefficients of Inertial Navigation Platform in Centrifuge Test[J].Equipment Environmental Engineering,2018,15(1):1-5. |
| 一种基于离心机试验辨识惯导平台误差系数的方法 |
| A Method for Identifying Error Coefficients of Inertial Navigation Platform in Centrifuge Test |
| 投稿时间：2017-10-21 修订日期：2018-01-15 |
| DOI：10.7643/ issn.1672-9242.2018.01.001 |
| 中文关键词: 惯导平台 离心机试验 误差系数辨识 傅里叶分析 |
| 英文关键词:inertial navigation platform centrifuge test identification of error coefficients Fourier analysis |
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| 中文摘要: |
| 针对离心机试验中惯导平台误差系数辨识问题，提出了一种基于谐波分析辨识误差系数的方法。首先，根据惯性器件误差模型推导了离心机试验下陀螺和加速度计的输出方程，其输出由各阶谐波分量构成。然后通过傅里叶分析得到各项谐波的幅值。最后根据谐波幅值与各项误差系数之间的关系反解得到各项误差系数。仿真结果验证了方法的有效性。 |
| 英文摘要: |
| 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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