| 冲击载荷识别中的相干修正 |
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| 引用本文： | 郑海起,张一星.冲击载荷识别中的相干修正[J].振动与冲击,1998,17(1):34-37. |
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| 作者姓名： | 郑海起 张一星 |
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| 作者单位： | 四川建材学院军械工程学院
(郑海起，张一星)，四川建材学院军械工程学院(栾军英) |
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| 摘 要： | 本文分析了在频域法冲击载荷识别中,测量噪声对识别精度的影响;从理论上论证了相干修正可有效地抑制响应信号的测量噪声,从而提高识别精度;给出了可用于工程实际的相干修正技术方法,并通过实验验证了相干修正对提高识别精度的有效性.
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| 关 键 词： | 载荷识别 相干修正 频响函数 |
COHERENCE MODIFICATION IN SHOCK LOAD IDENTIFICATION |
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| Zheng Haiqi Zhang Yixing Luan Junying.COHERENCE MODIFICATION IN SHOCK LOAD IDENTIFICATION[J].Journal of Vibration and Shock,1998,17(1):34-37. |
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| Authors: | Zheng Haiqi Zhang Yixing Luan Junying |
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| Affiliation: | Ordnance Engineering College |
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| Abstract: | In the paper the influence of measurement noise upon the precision of shock load i-dentification by frequency-domain method is analyzed. It is theoretically expounded that coherence modification can restrain measurement noise in the responce signal and increase identification precision. A kind of coherence modification technique applicable to engineering practice is presented, and its validity is tested by experiment. |
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| Keywords: | shock load identification coherence modification frequency response function |
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