Convolution is a key technique in signal and system analysis, which plays an important role in LTI time and frequencydomain analysis.
卷积技术是信号与系统分析的核心技术。它在LTI时域和频域系统分析中起着重要作用。
2
In fact, the FFT spectrum is the convolution between read time series and window function in domain of frequency, the dominant frequency position influence on leakage should not be ignored.
由于实际信号和窗函数在频域为卷积关系，所以应该考虑实际频率在FFT谱上所处的位置。
3
The tested signal on pile head is the convolution of the vibration resource and frequency response function of itself in domain of time.