In this paper, a novel adaptive orthogonality-constrained robust dictionary learning (AOCRDL) method for bearing fault diagnosis is developed to address this issue. Firstly, an α-divergence based ...

In this letter, we derive the delay-Doppler (DD) domain input-output relationship in block vector form based on the Reduce Cyclic Prefix-OTFS (RCP-OTFS) systems, and prove that the block channel ...