# Instantaneous frequency estimation for wheelset bearings weak fault signals using second-order synchrosqueezing S-transform with optimally weighted sliding window

> Research article (ISA Transactions, 2021) · cited 28× · AI/ML

**Wikidata**: [openalex:W3119290932](https://www.wikidata.org/wiki/openalex:W3119290932)  
**Source**: https://4ort.xyz/entity/instantaneous-frequency-estimation-for-wheelset-bearings-weak-fault-signals-using-second-order-synchrosqueezing-s-transf