The low frequency noise contaminant, which can be magnified due to the linear conversion from the acceleration spectrum to the displacement spectrum, is the major cause of the inaccuracy.
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- 其中,由加速度谱转换为水位谱时受低频杂讯干扰,常使波谱形状产生严重扭曲,对于此一干扰,本文基于正规化波谱形状具有相似性之特性,建立一滤除杂讯能量之方法。