first heart sound 中文意思是什麼
first heart sound
解釋
第一心音-
In this article, double threshold, iteration is applied to improve segmentation algorithm based on signal energy, and short - time zero - crossing rate is proposed for the first time to determine the exact boundaries between different components of heart sound
本文通過使用雙門限、迭代等方法,改進了基於信號能量的分段演算法,並首次引入短時過零率以更準確地定位分段邊界。 -
Time - frequency analysis of the first heart sound based on the hilbert - huang transform
變換的第一心音信號時頻分析
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