# Order-frequency Holo-Hilbert spectral analysis for machinery fault diagnosis under time-varying operating conditions

> Research article (ISA Transactions, 2024) · cited 37× · AI/ML

**Wikidata**: [openalex:W4390700239](https://www.wikidata.org/wiki/openalex:W4390700239)  
**Source**: https://4ort.xyz/entity/order-frequency-holo-hilbert-spectral-analysis-for-machinery-fault-diagnosis-under-time-varying-operating-conditions