| 高阶累积量的子空间模态参数辨识方法研究 |
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| 引用本文： | 徐亚卿,李永军,王天辉,李世龙.高阶累积量的子空间模态参数辨识方法研究[J].机械与电子,2012(1):3-6. |
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| 作者姓名： | 徐亚卿 李永军 王天辉 李世龙 |
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| 作者单位： | 军械工程学院,河北石家庄050003 |
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| 摘 要： | 基于传统的高阶累积量降阶方法的子空间模态参数辨识方法具有一定的缺陷.提出采用2种降阶方法用于改善高阶累积量的子空间模态参数辨识方法,并对该方法进行了实验验证,证明了方法的可靠性.该方法的计算量较小,能够用于一般结构的模态参数辨识.
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| 关 键 词： | 高阶累积量 子空间 模态参数辨识 有限元 |
Subspace Identification Algorithm Research Based on High Order Cumlant |
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| XU Ya-qing,LI Yong-jun,WANG Tian-hui,LI Shi-long.Subspace Identification Algorithm Research Based on High Order Cumlant[J].Machinery & Electronics,2012(1):3-6. |
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| Authors: | XU Ya-qing LI Yong-jun WANG Tian-hui LI Shi-long |
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| Affiliation: | (Ordance Engineering College,Shijiazhuang 050003,China) |
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| Abstract: | There are some deficient in traditional subspace algorithm with high order cumlant.Two lower order algorithm for subspace algorithm based on HOS are put forward in this paper.They are verified with simulation modal.The experiment is carried out to test the algorithm.The reliability is proved.The algorithm need small amount of computation and can be used to identify common structure. |
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| Keywords: | high order cumlant subspace modal parameter identification limit element |
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