The spectral component of foundation motion is changed, and the motion of foundation is smaller than that of free field.

相互作用改变了基底地震动的频谱组成，使基础处的地震动比自由场地震动小。

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During the acoustic logging data process, the information of time-frequency of related spectral component can not be provided generally by means of Fourier Transformation (FT).

在声波测井资料处理的过程中，傅里叶变换通常不能提供有关谱分量的时间局域化的信息。

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Experimental comparisons show that the method proposed is better than traditional IHS and wavelet transform fusion method in preserving spatial resolution and spectral component.

实验结果表明该方法得到的融合图像优于传统的IHS变换法和传统小波变换方法。

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