All too often when the curvefitting results are confusing or appear distorted, the effects will be blamed on noise or nonlinearities.
当曲线拟合结果令人迷惑或者看上去不正常的时候，太多的时候是把这些效果归咎于噪声或非线性。
Modal parameter estimation (commonly referred to as curvefitting) is probably, by far, the hardest part of experimental modal analysis for most people to understand.
到目前为止，对大多数人来讲，模态参数估计（通常称为曲线拟合）可能是试验模态分析中最难以理解的部分。
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