基于正则化理论的时频分析方法及应用

张金强

A regularization theory-based method for time-frequency analysis and its applications

ZHANG Jin-Qiang

图8 连续小波变换和最小支撑约束稀疏谱得到不同频率的能谱剖面 a—连续小波变换10 Hz能谱剖面;b—RMSTFS 10 Hz能谱剖面;c—连续小波变换20 Hz能谱剖面;d—RMSTFS 20 Hz能谱剖面;e—连续小波变换60 Hz能谱剖面;f—RMSTFS 60 Hz能谱剖面

Fig.8 Sections of different frequency spectrum obtained by CWT and RMSTFS a—section of 10 Hz spectral spectrum of CWT;b—section of 10 Hz spectral spectrum of RMSTFS;c—section of 20 Hz spectral spectrum of CWT;d—section of 20 Hz spectral spectrum of RMSTFS;e—section of 60 Hz spectral spectrum of CWT;f—section of 60 Hz spectral spectrum of RMSTFS