The cause of the packet energy variation is wave-flow interaction produced by temporal variation of the wind.

能量变化的实质是，风场的时变性引起了波流相互作用。

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And also the variation of the wave packet amplitude and energy has been discussed.

此外，还讨论了沿波射线波包振幅和能量的变化。

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The wavelet packet method characterized by good time-frequency localization can be used to make signal reconstruction and energy analysis of blasting vibration wave.

利用小波分析良好的时频局部化性质，可以很好地对爆破地震波进行信号重构和能量分析。

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The wavelet packet method characterized by good time-frequency localization can be used to make signal reconstruction and energy analysis of blasting vibration wave.

利用小波分析良好的时频局部化性质，可以很好地对爆破地震波进行信号重构和能量分析。

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