The natural logarithm of this ratio is called the logarithmic decrement . 此比率自然對數(shù)稱為對數(shù)的減量。
The studies show that compared with the conventional logarithmic decrement method , this method need not to determine the baseline , and is insensitive to baseline drift and low frequency interference 研究表明,與傳統(tǒng)的對數(shù)衰減法相比,新方法無須確定基線,估計結果對基線漂移和低頻干擾不敏感。