| 光纤电流传感器窄带加窗信号处理系统 |
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| 引用本文： | 苏立国,刘振宇,董小鹏,游佰强. 光纤电流传感器窄带加窗信号处理系统[J]. 电测与仪表, 2001, 38(5): 16-18 |
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| 作者姓名： | 苏立国 刘振宇 董小鹏 游佰强 |
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| 作者单位： | 厦门大学电子工程系 |
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| 摘 要： | 针对光纤电流传感器由于环境因素的变化，从而导致传感器信号噪声较大的问题，提出了基于频域窄带加窄理论的信号处理系统。文中详细描述了频域窄带窗算的特性并对其进行了Furier分析。该系统能实现1Hz的窄带滤波，实验中对普通光纤电流传感器的采集数据进行了窄带加窗信号处理，结果表明该系统能够有效地提高光纤电流传感器的输出信噪比。
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| 关 键 词： | 光纤电流传感器 Fourier变换 信号处理 电流测量 |
| 文章编号： | 1001-1390(2001)05-0016-03 |
| 修稿时间： | 2001-02-12 |
Windowed narrow band signal processing system in optical fiber current sensor |
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| Su Liguo,Liu Zhenyu,Dong Xiaopeng,You Baiqiang. Windowed narrow band signal processing system in optical fiber current sensor[J]. Electrical Measurement & Instrumentation, 2001, 38(5): 16-18 |
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| Authors: | Su Liguo Liu Zhenyu Dong Xiaopeng You Baiqiang |
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| Abstract: | The output of optical fiber current sensor may be suffered from variation of ambient perturbations. A novel signal processing system based on the theory of windowed narrow band function is proposed in this paper for current detection. Both the function's property and analysis based on Fourier transform are discussed in details. The system can achieve 1Hz bandwidth. Results of experience show that the system can enhance the signal-to-noise ratio of OFCS efficiently. |
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| Keywords: | optical fiber current sensor Fourier transform signal processing |
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