lf low frequency 中文意思是什麼

lf low frequency 解釋
低頻，低音
  • lf : LF ＝ low frequency 【無線電】低頻。lf ＝ left fielder （棒球）左外野[場]（手）。
  • low : adj 1 低的；淺的，矮的。 low flight 低飛。 a low temperature 低溫。 low tide [water] 低潮。 The g...
  • frequency : n. 1. 屢次，頻仍，頻繁。2. （脈搏等的）次數，出現率；頻度；【物理學】頻率，周率。
  1. The main results as follows results from sinoatrial node in vivo 1 、 under bilateral vagi intact condition the value of hf ( high frequency power ) component, lf ( low frequency power ) component and apen value of ibis was the highest, but the lf / hf ratio was the lowest ; unilateral vagotomy decreased apen value of ibis, right vagotomy increased lf / hf ratio but left vagotomy did not

    05 ） 。在離體竇房結還記錄到自發輕度不規則放電，自發不規則放電使竇房結放電間期近似嫡從對照時的0二8土0 09 （ n 6 ）升高到不規則放電時的0
  2. Analyzing real hrv, proving the every segment power ( high frequency > low frequency ) of projection in frequency axis is times with the every segment power by using fft, the lf / hf by using 2 method is primarily sameness. 3d figure is a trenchancy tool for doctor to look over the relation between time and frequency

    對實際的心率變異信號進行了維重慶大學碩士學位論文格納分析，證實通過計算三維時頻分佈對頻率軸的投影得到的各頻段（高頻段、低頻段等）功率，與直接用fft所得各頻段功率，二者只相差一個比例系數，並且二者lf hf的值基本相同。
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