| 基于信号相关性微弱应变信号检测 |
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| 引用本文： | 刘道文,王红祥. 基于信号相关性微弱应变信号检测[J]. 山西电子技术, 2008, 0(5) |
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| 作者姓名： | 刘道文 王红祥 |
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| 作者单位： | 许昌学院教育技术与信息部,河南许昌461000 |
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| 摘 要： | 材料力学微应变测量实验中,试件在较小负荷作用下所产生的应变信号十分微弱,而各种噪声较被测应变信号强很多倍,因此在信号检测时要设法提高信号的信噪比。所以,基于信号相关性,利用相关检测法将被测信号中的有用信号与噪声进行分离,以实现微弱应变信号的有效检测。
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| 关 键 词： | 信噪比 信号相关性 微弱信号 参考信号 |
Weak Strain Signal Detection Based on Signal-Correlation Principle |
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| Liu Dao-wen Wang Hong-xiang. Weak Strain Signal Detection Based on Signal-Correlation Principle[J]. Shanxi Electronic Technology, 2008, 0(5) |
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| Authors: | Liu Dao-wen Wang Hong-xiang |
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| Affiliation: | Liu Dao-wen Wang Hong-xiang (Department of Educational Technology & Information,Xuchang University,Xuchang Henan 461000,China) |
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| Abstract: | In the strain-data measured experiments of material mechanics,the bar generates weak strain signal by the less force functioning on the bar,while the noises much stronger than the signal,so the measures must be taken to improve the SNR during the signal measuring.And based on the signal-correlation principle,the useful signal should be separated from the noises by the measured-method of signal-correlation principle. |
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| Keywords: | signal to noise ratio signal-correlation weak signal referenced signal |
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