The relationship between the sleep stage and the ultra-low frequency components of HRV is also considered.
在特征提取中还考虑了HRV中超低频分量和睡眠的关系。
The overall slope in the generated random phase screen reflects an accurate sampling of the low frequency components.
所产生的随机相位屏的整体倾斜反映了低频成分的准确采样。
Physiological signals can't be transmitted through telephone networks because they are full of ultra low frequency components.
由于生理信号的超低频分量相当丰富，利用电话网络无法直接传送。
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