| 干涉型光纤传感信号去噪方法的研究 |
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| 引用本文： | 盛兴,邓大鹏,王晶,张彬. 干涉型光纤传感信号去噪方法的研究[J]. 光纤与电缆及其应用技术, 2011, 0(2): 31-35 |
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| 作者姓名： | 盛兴 邓大鹏 王晶 张彬 |
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| 作者单位： | [1]西安通信学院,西安710106 [2]中国人民解放军69036部队,新疆库尔勒841000 |
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| 摘 要： | 针对干涉型光纤传感信号的特点,采用数字滤波和小波去噪两种方法对干涉信号进行了消噪处理,并对去噪效果进行了比较和分析。结果表明,截止频率为4 kHz,阶次为3的Butterworth低通滤波器和Birge-Massart阈值小波去噪算法在干涉型光纤传感系统中有较好的使用价值。
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| 关 键 词： | 干涉型光纤传感系统 数字滤波 小波去噪 |
Research on the Methods for Signal De-noising in Interferometric Fiber Optic Sensor |
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| SHENG Xing,DENG Da-peng,WANG Jing,ZHANG Bin. Research on the Methods for Signal De-noising in Interferometric Fiber Optic Sensor[J]. Optical Fiber & Electric Cable and Their Applications, 2011, 0(2): 31-35 |
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| Authors: | SHENG Xing DENG Da-peng WANG Jing ZHANG Bin |
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| Affiliation: | 1.Xi＇an Communications Institute,Xi＇an 710106,China;2.Troops 69036,PLA, Ku＇erle 841000,Xinjiang,China) |
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| Abstract: | Based on the signal features of interferometric fiber optic sensor,two methods,digital filtering and wavelet de-noising,are used to carry out the de-noising process on the interferometric signals.Their de-noising effects are compared and analyzed.The results show that the Butterworth low-pass filter having 4 kHz of cutoff frequency and 3 steps,and the wavelet threshold de-noising based on Birge-Massart strategy have better application in interferometric fiber optic sensor system. |
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| Keywords: | interferometric optic sensor system digital filter wavelet de-noising |
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