煤矿安全2012，Vol.43Issue(2)：140-143,4.
基于微震时间序列的冲击地压混沌特性分析
Chaos Characteristic Analysis of Microseism Time Series of Rock Burst
摘要
Abstract
Because it is a nonlinear dynamic process,chaos characteristic of rock burst is analyzed systematically and thoroughly on microseism time series to laying a foundation for chaotic prediction.chaos characteristic appearance of rock burst is introduced in this paper.In MATLABR2009b environment,taking the time series of microseism accumulative total energy as an example,aperiodicity is confirmed with power spectrum method;the time series is distinguished from the noise signal by the principal components analysis;chaos characteristic of the system is determined by its maximum lyapunov exponent which is greater than zero;correlation dimension calculated describes its chaotic degree.关键词
冲击地压/混沌/微震/Lyapunov指数/关联维数Key words
rock burst/chaos/microseism/lyapunov exponent/correlation dimension分类
矿业与冶金引用本文复制引用
陶慧,马小平,乔美英..基于微震时间序列的冲击地压混沌特性分析[J].煤矿安全,2012,43(2):140-143,4.基金项目
国家自然科学基金资助项目 （）
江苏省自然科学基金资助项目 （）
