OPEN-LOOP FOG SIGNAL TESTING AND WAVELET ELIMINATING NOISE |
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作者姓名: | ZHUYun-zhao WANGShun-ring MIAOLing-juan WANGBo |
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作者单位: | SchoolofInformationScienceandTechnology,BeijingInstituteofTechnology,Beijing,100081,P.R.China |
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摘 要: | An open-loop fiber optic gyro (FOG) testing system is designed. The noise characteristic of open-loop fiber optic gyro signals is analyzed. The wavelet eliminating noise method is discussed and compared with other methods, such as smoothing and low-pass filter methods. Results indicate that the wavelet eliminating noise method can satisfy the measuring demand of the FOG weak output signal with noise disturbing. The wavelet analysis method can efficiently eliminate the noise and reserve the information of the signal. The eliminating noise effect of using different wavelet base functions is compared. The effectiveness of multiresolution wavelet analyses of eliminating noise is proved by experimental results.
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关 键 词: | 光纤光学陀螺仪 噪声消除 小波变换 性能测试 |
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