Open access
Oct 2026
A time-frequency method based on novel oddsymmetric window functions for mechanical equipment fault diagnosis
Under time-varying operating conditions, signals generated by mechanical equipment usually exhibit strong non-stationarity, frequency-modulation and amplitude-modulation (FM-AM), and contamination by background noise. These characteristics pose three main challenges for time-frequency analysis (TFA): the instantaneou...
Zhi-Feng Hu, Hao Zhang, Bing-Yan Chen et al.
· Measurement science and tech... · 0 citations