本文采用自动数据采集及FFT技术研究应力波的弥散与衰减特性。
Dispersion and attenuation characteristics of stress waves were studied by means of the automatic data collection and FFT technique.
本文研究结果还表明，地面水平振动信号也可以用来分析R波的弥散曲线和地基波速检测。
Further studies show that the horizontal vibration signal at the ground surface could also be used to get the R-wave dispersion curve.
通过算例来验证该方法的可靠性和精确性，并利用这一动力响应计算方法分析了道路结构表面波测试中所获弥散曲线的可靠性。
The availability and accuracy of dispersion curves measured by SASW in pavement structures is analysed by using the presented method used to calculate dynamic response.
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