| Prony算法在大规模线性系统中的应用──动态模型的辨识与降阶 |
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| 引用本文： | 苟北,提兆旭,陈陈.Prony算法在大规模线性系统中的应用──动态模型的辨识与降阶[J].上海交通大学学报,1996(12). |
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| 作者姓名： | 苟北 提兆旭 陈陈 |
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| 摘 要： | 运用Ｐｒｏｎｙ算法对大规模线性系统动态模型进行辨识，给出了该算法所需要的Ｐｒｏｎｙ模型，并提出了在任意输入信号下的改进Ｐｒｏｎｙ算法，同时运用Ｒｏｕｔｈ算法对模型进行了降阶．数值算例结果表明，运用本文所提出的方法可以精确地获得线性系统动态模型的阶数与系统特征值，且降阶后模型对系统动态特性曲线具有很高的拟合精度．
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| 关 键 词： | 线性动态系统 Prony算法 Prony模型 Routh算法 |
An Application of Prony Method in Large-Scale Linear System-identification and Order-Reduction of Dynamic Model |
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| Gou Bei, Ti Zhaoxu, Chen Chen.An Application of Prony Method in Large-Scale Linear System-identification and Order-Reduction of Dynamic Model[J].Journal of Shanghai Jiaotong University,1996(12). |
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| Authors: | Gou Bei Ti Zhaoxu Chen Chen |
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| Institution: | Department of Electrical Power Engineering |
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| Abstract: | The dynamic model of a large-scale linear system is identified by using Prony method and Prony model for the method is presened. The conventional Prony method is extended for general input signals. The model is also reduced to a more manageable order while preserving its essential characteristics. The results of numerical study show that by the method presented in this paper the real dimension and eigenvalues of the linear system can be precisely determined. |
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| Keywords: | linear dynamic system Prony method Prony model Routh method |
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