【摘要】 最大熵谱估计法是一种具有很高分辨率,并特别适合短时序列分析的现代谱分析方法。本文首次将这种方法引用到地震面波频散的分析处理中,提出一种新的面波频散的测定方法——MEAS法(Maximum Entropy Analysis of Surface-wave)。用此方法,计算了我国东海地区的地震面波的频散,并与多重滤波法的结果作了比较。两种方法在短周期部分吻合得较好,而在长周期部分,MEAS法的结果更准确。更多还原

【Abstract】 Maximum entropy spectral analysis method (MEM) is a widely used modern spectral analysis method, which characterizes high resolution and fits for short time sequence especially. We first applied it on the maximum entropy analysis of surface wave(MEAS). Based on this method,more than 200 surface wave records of the earthquakes occurring in the East China Sea are used for determining group velocity of Rayleigh wave,comparing it with the results of multiple-filtering method,satisfactory results has been obtained.更多还原