摘要
利用希尔伯特-黄变换(HHT)中经验模态分解(EMD)法,对武钢金山店铁矿微震监测信号进行分解,得到满足一定条件的IMF分量,再对其进行希尔伯特变换,得到能量谱图,通过对波形和谱图的分析,实现微震震源的提取及分类。
Making use of EMD decomposition method in Hilbert-Huang transform,this paper decomposes the microseismic signals in Jinshandian Iron Mine of Wuhan Iron and Steel Corporation and obtains IMF components that meet certain conditions,which go through Hilbert conversion and yield energy spectrum.With analysis of the waveform and spectrum,it extracts and classifies microseimic sources in the very mine.
引文
[1]李博,熊晓燕,李东文.基于LabVIEW的HHT的研究与应用[J].机电工程技术,2008,37(10):111-114.
[2]叶元寿,蔡明亮.非爆破施工震动安全判据引用探讨[J].工业安全与环保,2006,32(10):46-47.
[3]钟佑明.希尔伯特-黄变换局瞬信号分析理论的研究[D].重庆:重庆大学,2001.
[4]张义平,李夕兵,赵国彦.基于HHT方法的爆破地震信号分析[J].工程爆破,2005,11(1):1-7.
[5]郭淑卿.EMD分解区域的数据研究[J].信号处理,2010,26(2):277-285.