| 基于前向线性预测的光纤陀螺信号小波分析方法 |
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| 引用本文： | 石国祥,陈坚,叶军,王林,吕永佳. 基于前向线性预测的光纤陀螺信号小波分析方法[J]. 导弹与航天运载技术, 2011, 0(6): 48-52 |
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| 作者姓名： | 石国祥 陈坚 叶军 王林 吕永佳 |
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| 作者单位： | 1. 第二炮兵工程学院,西安,710025
2. 第二炮兵驻孝感地区军事代表室,孝感,432100 |
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| 摘 要： | 根据光纤陀螺输出信号中存在漂移误差和噪声的特点,在采用小波降噪的基础上,提出将自适应前向线性滤波技术用于小波系数处理,能够更加有效地抑制陀螺漂移噪声.实际测量数据处理结果表明,这种综合的小波滤波方法在不增大小波分解尺度的情况下可以进一步改善滤波效果,并且计算量没有明显增加.滤波后既能获得平滑信号,也真实反映了信号的边界...
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| 关 键 词： | 小波分析 光纤陀螺 前向线性预测滤波 |
Wavelet Analysis in Signal Processing of the Fiber Optic Gyro Based on Forward Linear Prediction |
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| Shi Guoxiang,Chen Jian,Ye Jun,Wang Lin,Lü Yongjia. Wavelet Analysis in Signal Processing of the Fiber Optic Gyro Based on Forward Linear Prediction[J]. Missiles and Space Vehicles, 2011, 0(6): 48-52 |
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| Authors: | Shi Guoxiang Chen Jian Ye Jun Wang Lin Lü Yongjia |
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| Affiliation: | Shi Guoxiang1,Chen Jian1,Ye Jun1,Wang Lin2,Lü Yongjia1(1.The Second Artillery Engineering College,Xi’an,710025; 2.The Second Artillery Representative Room of Xiaogan District,Xiaogan,432100) |
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| Abstract: | According to the characteristics of the Fiber Optic Gyro signal that contains random drift and noise error,based on de-noise method of wavelet filtering,the author proposes to apply the adaptive forward linear wavelet filtering technology to the processing of wavelet coefficient.This technology could effectively restrain the noise error and random drift.The result of testing and statistic analyzing show that the complex wavelet filter can improve the de-noise effect of the gyroscope drift,and the complexity and the real-time of the algorithm increase only a little.After filtering,the signal became smooth,moreover,its boundary and tendency were reflected. |
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| Keywords: | Wavelet analysis Fiber optic gyro Forward Linear filter |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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