| 光纤干涉位移传感器相位估计的一种精确方法 |
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| 引用本文： | 王勇,廖延彪,赵华凤.光纤干涉位移传感器相位估计的一种精确方法[J].光学技术,1999(1):geMap1. |
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| 作者姓名： | 王勇 廖延彪 赵华凤 |
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| 作者单位： | 清华大学电子工程系,北京,100084 |
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| 摘 要： | 应用信号处理有关技术提出了一种光纤干涉位移传感器相位估计的方法，可以解决很大范围的不等幅、周期非均匀、带噪干涉信号条纹的精确计数问题。分析了此方法的适用范围及估计精度。对于１０ｄＢ信噪比的系统来说，位移在０．３ｍｍ以内的测量精度可达到λ／１００。
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| 关 键 词： | 光纤干涉仪 位移传感器 相位估计 |
Novel phase estimation method for fiber opticinterferometric displacement sensor |
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| WANG Yong,LIAO Yanbiao,ZHAO Huafeng.Novel phase estimation method for fiber opticinterferometric displacement sensor[J].Optical Technique,1999(1):geMap1. |
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| Authors: | WANG Yong LIAO Yanbiao ZHAO Huafeng |
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| Abstract: | Based on digital signal processing techniques, a novel phase estimation method is proposed to count the output fringe number of fiber optic displacement sensor, with nonuniform periodic and noise added interference signal. The suitable conditions and estimation precision are also analyzed in this paper. In displacement range of 0 3mm, the measurement precision of λ /100 are obtained, with output signal of 10dB ratio of signal to noise. |
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| Keywords: | fiber optic interferometer displacement sensor phase estimation |
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