1、
The curve fitting method can precisely extract the 4 parameters of sine wave.
曲线拟合法能够精确地提取正弦信号的四个参数.
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2、
Let's now examine the simplest wave from where the profile is a sine or cosine curve.
现在让我们来考察最简单的波形,它的剖面图是正弦或余弦曲线.
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