对用稳定图识别真假模态的一点改进

Some Improvements using Stabilization Diagram to Identify True or False Modal Parameters

利用单位样值响应矩阵和自由响应的特征值分解形式中的特征值前的系数矩阵的范数作为稳定判据，结合稳定图识别真假模态。计算表明，本方法具有较好的分解能力。

This paper uses norm of coefficient matrix before eigenvalue which exists in eigenvalue decomposition form of unit impulse response as stable criterion to identify true or false modal, while using stabilization diagram. Simulation shows that the method has better resolution.