| 小波阈值法在光干涉信号除噪中的应用 |
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| 引用本文： | 郭常盈,张芳,禹延光.小波阈值法在光干涉信号除噪中的应用[J].光通信研究,2009,35(2):42-44. |
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| 作者姓名： | 郭常盈 张芳 禹延光 |
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| 作者单位： | 1. 南阳理工学院,计算机科学与技术系,河南,南阳,473004
2. 郑州大学,信息工程学院,河南,郑州,450052 |
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| 摘 要： | 通过对传统数字滤波和Birge-Massart小渡阈值法的比较,对光反馈自混合干涉信号进行了去噪研究.构建了光反馈自混合干涉理论模型,通过对其仿真波形和实测波形的处理,比较了加权平滑滤波、有限长单位冲激响应滤波器和小波阀值法的去噪效果,结果表明,小波阑值去噪方法明显优于另外两种传统的滤波方法,具有更好的去噪效果.
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| 关 键 词： | 光反馈自混合干涉 信号去噪 小波变换 Birge-Massart阀值法 |
| 收稿时间： | 2008/7/28 |
Applications of wavelet threshold method in denoising optical interferometer signals |
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| Guo Changying,Zhang Fang,Yu Yanguang.Applications of wavelet threshold method in denoising optical interferometer signals[J].Study on Optical Communications,2009,35(2):42-44. |
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| Authors: | Guo Changying Zhang Fang Yu Yanguang |
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| Affiliation: | 1.Department of Computer Science and Technology;Nanyang Institute of Technology;Nanyang 473004;China;2.School of Information Engineering;Zhengzhou University;Zhengzhou 450052;China |
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| Abstract: | The denoising of optical feedback self-mixing interferometer signals is studied by comparing the traditional digital filter method and Birge-Massart threshold wavelet method.The theoretical model of optical feedback self-mixing interferometer system is constructed and the denoising effects of the weighted smooth filtering,finite long-unit impulse response filter and the threshold wavelet method are compared by processing the simulated and measured waveforms.The results prove that the threshold wavelet metho... |
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| Keywords: | optical feedback self-mixing interference signal denoising wavelet transformation Birge-Massart threshold |
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