【摘要】 选取2009年11月21日密山市知一镇地震发生当天密山地电场数据,采用小波包阈值去噪算法,对地电场数据进行去噪研究,还原地震发生后地电场数据变化信息,并结合去噪效果及误差分析结果,选出适合密山地电场数据去噪的最优小波函数。更多还原

【Abstract】 This paper, based on the data of the earthquake that took place in the Zhiyi town of Mishan on 21 November, 2009 and was collected by the Mishan Seismic Station geoelectric field(hereinafter referred to as Mishan geoelectric field), makes de-noising research of geoelectric field data by using wavelet packet threshold de-noising algorithm, and restores the change information in geoelectric field data after the earthquake. In addition, it screens out the optimal wavelet functions which are appropriate for the Mishan geoelectric field data de-noising according to the de-noising effect and the error analysis results.更多还原