采用小波相邻系数降噪，然后用改进的局域均值分解对滚动轴承进行特征提取，得到特征向量-Using adjacent wavelet coefficients of noise reduction, and then use the improved local mean decomposition characteristics of rolling bearing are extracted, get the feature vector

广义S变换；故障诊断；滚动轴承；时频分辨率-Generalized S Transform fault diagnosis Rolling time-frequency resolution