# An early fault diagnosis method of common-rail injector based on improved CYCBD and hierarchical fluctuation dispersion entropy

> Research article (Digital Signal Processing, 2021) · cited 32× · AI/ML

**Wikidata**: [openalex:W3148636265](https://www.wikidata.org/wiki/openalex:W3148636265)  
**Source**: https://4ort.xyz/entity/an-early-fault-diagnosis-method-of-common-rail-injector-based-on-improved-cycbd-and-hierarchical-fluctuation-dispersion-