根据煤岩声发射监测特性以及声发射信号推断声发射源的技术,提出一种利用近场MUSIC算法快速识别煤岩声发射信号的方法。在煤矿AE信号监测中,利用该算法对声发射信号的空间位置进行估计,将该算法估计的结果与巷道形状及工作面相适配,可以基本定位声发射源的位置。仿真实验结果证明了该算法的有效性。
Based on the technology of using acoustic emission(AE) signal to extrapolate the AE source,an approach to fast recognize the coal mine AE signal is presented by using near-field MUSIC algorithm.This approach can be used to estimate the position of the AE signal source by comparison of the estimation result with roadway shape and working face of the coal mine.The simulation results show that the proposed approach is effective in estimating the position of the AE signal source.