The frequency response function and the power spectrum function for stationary and non-stationary inputs are obtained.
求出了频率响应函数以及输入为平稳和非平稳情况下的功率谱函数。
By using inverse matrix of frequency response function in this paper, the spectrum of dynamic forces acting on the set has been identified.
本文采用频响函数矩阵求逆法，辨识了立式机组动态力的幅值谱。
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