Learnable Band-Selective Envelope-Spectrum Residual Fusion for Bearing Fault Diagnosis Under Matched Noise Conditions
Strong noise can obscure the transient and modulation signatures used for bearing fault diagnosis, while envelope-based methods remain sensitive to the frequency band selected before demodulation. This study proposes a learnable band-selective envelope fusion WDCNN (LBEF-WDCNN). A raw-waveform branch extracts temporal...