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。
The analysis indicates that the inverse spectrum has a noticeable feature to distinguish the influence of the side frequency and identify the transfer function of the testing system.
分析表明倒频谱在识别边频及测试系统传递函数的影响方面具有显著的特点。
The analysis indicates that the inverse spectrum has a noticeable feature to distinguish the influence of the side frequency as well as the transfer function in measuring test system.
分析表明倒频谱在识别边频及测试系统传递函数的影响方面具有显著的特点。
An inverse temporal and spatial Fourier transform is applied to the estimated frequency-wavenumber spectrum, generating trace interpolation of the seismic data.
将逆时间和空间傅立叶变换应用于估计频率-波数谱，从而产生该地震数据的轨迹内插。
But the resolving power of radar is in inverse proportion to the pulse-width. The pulse is the narrower in width , then the wider frequency spectrum is, it is the more accurate to find range.
但作用距离的分辨率却与发射脉宽成反比，脉冲宽度越窄，则频谱越宽，测距越精确。
But the resolving power of radar is in inverse proportion to the pulse-width. The pulse is the narrower in width , then the wider frequency spectrum is, it is the more accurate to find range.
但作用距离的分辨率却与发射脉宽成反比，脉冲宽度越窄，则频谱越宽，测距越精确。
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