The identification results indicate that both frequency domain average and wavelet filter methods can improve the precision of modal parameters identification, while wavelet analysis is the most effective in damp identification.3.
结果表明,频域平均法、小波滤波均可提高模态参数识别精度;小波变换直接识别能更有效地提高模态阻尼比的识别精度。
参考来源 - 模态参数识别方法及应用研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Low noise fixture and phase average technique provide the amplitude and spurious resonance in frequency domain.
在频率域内，低噪声定位装置和相位平均技术可以提供振幅和假频谐振。
Radio frequency noise jamming can be deleted by the method of average range frequency spectrum and notching in frequency domain.
对于射频噪声，通过平均距离频频法和频域陷波的方法可以去掉；
The main research work includes analysis based on frequency domain sub-average energy interception method of damping identification method, and were tested and compared to the analysis;
本文的主要研究工作包括基于频域分析的分段截取平均能量法阻尼识别方法的研究，并进行了试验验证和比对分析；
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