# Order spectrum analysis enhanced by surrogate test and Vold-Kalman filtering for rotating machinery fault diagnosis under time-varying speed conditions

> Research article (Mechanical Systems and Signal Processing, 2021) · cited 51× · AI/ML

**Wikidata**: [openalex:W3118339410](https://www.wikidata.org/wiki/openalex:W3118339410)  
**Source**: https://4ort.xyz/entity/order-spectrum-analysis-enhanced-by-surrogate-test-and-vold-kalman-filtering-for-rotating-machinery-fault-diagnosis-unde