| 分段FFT算法在FBG传感器信号解调中的应用 |
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| 引用本文： | 康守强,杨广学.分段FFT算法在FBG传感器信号解调中的应用[J].传感器与微系统,2006,25(8):77-78,81. |
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| 作者姓名： | 康守强 杨广学 |
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| 作者单位： | 哈尔滨理工大学,电气与电子工程学院,黑龙江,哈尔滨,150040 |
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| 摘 要： | 针对光纤B ragg光栅(FBG)传感器信号解调实时性较差,且当2个信号波形发生部分重叠时波长不能被检测的问题,提出了利用F-P可调谐滤波器,采用分段FFT的快速相关算法。此算法具有运算量小、效率高的优点,达到信号实时处理的目的。通过MATLAB大量仿真实验,证明可以有效解决波形部分重叠问题。
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| 关 键 词： | 光纤Bragg光栅 快速傅立叶变换 传感器 |
| 文章编号： | 1000-9787（2006）08-0077-02 |
| 收稿时间： | 2006-02-23 |
| 修稿时间： | 2006-02-23 |
Subsection FFT algorithm applied to signal demodulating of FBG sensors |
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| KANG Shou-qiang,YANG Guang-xue.Subsection FFT algorithm applied to signal demodulating of FBG sensors[J].Transducer and Microsystem Technology,2006,25(8):77-78,81. |
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| Authors: | KANG Shou-qiang YANG Guang-xue |
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| Abstract: | Aiming at the poor real-time performance of signal demodulation of fiber Bragg grating(FBG) sensors,and the wavelength can't be detected when two signal waveforms overlap,subsection FFT convolution Computation by using F-P tunable filter is presented.It can realize signal real-time processing with a less calculation and high-efficiency.Plentiful MATLAB simulation tests validate the problem of the signal overlapping can be resolved well. |
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| Keywords: | fiber Bragg grating(FBG) fast Fourier transform(FFT) sensor |
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