改进希尔伯特-黄变换含噪振动信号时频分析

孙苗, 杨钧凯, 吴立

Time-Frequency Analysis of Noisy Vibration Signal Based on Improved Hilbert-Huang Transform

SUN Miao, YANG Junkai, WU Li

图9 IMF4时频能量特征图

Fig.9 Time-frequency energy characteristic of IMF4