| 小波消噪在光纤陀螺温度补偿中的应用 |
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| 引用本文： | 焦飞,陈璞,朱少华.小波消噪在光纤陀螺温度补偿中的应用[J].压电与声光,2014,36(5):768-771. |
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| 作者姓名： | 焦飞 陈璞 朱少华 |
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| 作者单位： | （中国航空工业集团公司 西安飞行自动控制研究所，陕西 西安 710065） |
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| 基金项目： | 总装十二五预研基金资助项目（51309030102） |
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| 摘 要： | 分析并建立了光纤陀螺温度漂移模型,指出数据噪声会降低甚至恶化模型的补偿效果。为减小噪声的影响,分别利用数字低通滤波和小波阈值消噪法对温度变化率数据进行降噪处理。经过仿真分析发现,与数字滤波相比,小波消噪法的降噪效果更好。多轮温度试验结果对比表明,利用小波阈值法对数据进行降噪,可提高光纤陀螺温度漂移的补偿效果。
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| 关 键 词： | 光纤陀螺 温度漂移 数字低通滤波 小波阈值消噪 误差补偿 |
The Application of Wavelet Denoising to FOG Temperature induced Drift Compensation |
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| JIAO Fei,CHEN Pu and ZHU Shaohua.The Application of Wavelet Denoising to FOG Temperature induced Drift Compensation[J].Piezoelectrics & Acoustooptics,2014,36(5):768-771. |
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| Authors: | JIAO Fei CHEN Pu and ZHU Shaohua |
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| Abstract: | The temperature induced drift model for FOG is analyzed and established. But data noise would weaken or deteriorate the effect of this compensation model. To solve this problem, digital low pass filter and wavelet threshold value denoising method are used respectively to reduce the data noise. It is found that the wavelet denoising method is more effective than that of the digital low pass filter through the simulation and analysis. Comparison of the compensation results before and after denoising further verified the effectiveness of the wavelet threshold value denoising method for improving the compensation effect of the temperature induced drift model. |
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| Keywords: | FOG temperature induced drift digital low pass filtering wavelet threshold value denoising error compensation |
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