【摘要】 介绍了EMD技术,给出由该技术产生的固有模态函数重构数字地震波形信号处理中所用滤波器算法。然后利用该方法对实际波形信号进行了初步处理,处理结果表明,基于EMD的滤波技术具有许多其它分析手段所不具备的特点,是一种新的滤波方法,可用于数字地震波形信号的预处理。更多还原

【Abstract】 The theory of the empirical mode decomposition(EMD) technique is introduced,and the reconstructing and filtering algorithm of intrinsic mode functions from EMD is also given in this article.This technique is used to process the typical digital seismic waveform signal.The result indicates that the EMD technique is fairly effective in the digital waveform pretreatment.更多还原