In this paper,the law of earthquake ground motion is analyzed comprehensively by taking account of duration,frequency characteristic and peak index of energy distribution.
本文从强震持时、频谱特性和能量分布峰态系数等三个方面对地震地面运动规律进行综合分析,提出了一种较为客观的地震地面运动分类方法。
Independent component analysis is one of important methods of blind signal separation, so a kurtosis maximization/minimization-based blind signal separation method is considered in this paper, and the mixture of signals is limited to be instant(non-convolutive).
就一种基于信号峰态(kurtosis)极值化的盲信号分离方法进行了探讨。
Since it is not easy to collect abnormal samples in bearing fault detection and there exists an overfitting of conventional classifications due to the abnormal data imbalanced,a novel one-class detection model based on AR model with self-correlation kurtosis characteristic is presented.
针对轴承故障检测系统中异常样本数据不易收集以及异常样本数据分布不均导致传统分类算法出现过适应现象等现实应用问题,提出了一种基于自回归(AR)模型自相关系数峰态特征的一类故障检测方法。
