本文研究了非平稳随机振动信号的瞬时功率谱。

The instantaneous power spectrum of nonstationary random vibration signals is discussed in this paper.

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简介了研制的随机振动信号处理虚拟仪器系统的组成。

Here the composition of the developed virtual instrument system of processing a random vibration signal is introduced.

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基于自回归滑动平均模型(ARMA)的方法，实现了不同车速和路面条件下的随机振动信号的实验室再现。

The reconstruction of vehicle random vibration signal under different vehicle speed and road conditions is realized in laboratory, based on an auto regressive moving average (ARMA) time series model.

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