Zhendong Ceshi yu Zhenduan针对密集模态情况下难以有效识别结构阻尼比的问题，提出了一种基于特征系统实现算法（eigensystem realization algorithm，简称ERA）和Gabor最优分解的结构阻尼比识别方法。首先，采用结构自由振动响应，利用特征系统实现算法对结构频率进行识别，得到结构各阶频率的最小差异，并根据Gabor分解的时频分辨率确定Gabor分解的参数取值范围；其次，根据Gabor分解幅值曲线的线性拟合残差标准值，提出基于残差标准值最小化的Gabor形状参数确定原则 ...
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