peak spectral power的意思|示意

With increasing longitudinal distance, the velocity Power Spectral Density (PSD) peak shifted to lower frequencies.

随着流向距离的增大，速度功率谱(PSD)曲线呈现峰值向低频移动的现象。

Then, the power spectral density (PSD) of the acceleration at ground level is evaluated by an iterative approach according to the principle of equivalent peak acceleration.

然后，根据加速度峰值等效原则，选代计算得到地面的加速度功率谱密度曲线；

There is a sharp peak in the power spectral density of da- ta. It is a narrow band random vibration which depends on t…

文中还讨论了车轮振动加速度功率谱密度峰值的性质，由于履带节的作用使车轮产生与车速有关的窄带随机振动。