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14 爆破地震波监测信号时间-频率-能量三维图 |
Fig.14 Time-frequency-energy three-dimensional diagram of blasting seismic wave monitoring signal |