# Cyclic Harmonic Ratio Defined in Squared Envelope Spectrum and Log-Envelope Spectrum for Gearbox Fault Diagnosis

> Research article (IEEE Transactions on Instrumentation and Measurement, 2020) · cited 37× · AI/ML

**Wikidata**: [openalex:W3038197494](https://www.wikidata.org/wiki/openalex:W3038197494)  
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