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Enhancements to the continuous wavelet transform for damping identifications on short signals

机译：连续小波变换的增强，可在短信号上进行阻尼识别

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摘要

The edge-effect of the wavelet transform can present a serious limitation to the identification of damping. In an attempt to overcome the problem posed by the edge-effect, this paper presents three new methods that are incorporated into the definition of the continuous wavelet transform: the reflected-window method, the equal-window-area method and the adaptive-wavelet-function method. The effectiveness of these methods was tested on experimental data. It was found that with these methods the same rate of reliability could be achieved with a signal that was approximately three times shorter than the signal required by the classical CWT approach to damping identification.
机译：小波变换的边缘效应会严重限制阻尼的识别。为了克服边缘效应带来的问题，本文提出了三种新方法，它们被纳入连续小波变换的定义中：反射窗方法，等窗区方法和自适应小波功能方法。在实验数据上测试了这些方法的有效性。已发现，使用这些方法，可以得到比经典CWT阻尼识别方法所需的信号短大约三倍的信号的相同可靠性。

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