ALTFN: a novel unsupervised domain adaptation bearing fault diagnosis framework using joint global and local information
This paper proposes an Adaptive Lightweight Time-Frequency Network (ALTFN) to address insufficient fault feature representation and degraded generalization performance under varying working conditions. ALTFN integrates Adaptive Time-Frequency Transformer (ATFT) and Depthwise Separable Convolution (DSC) into a dual-br...