# A New Time–Frequency Feature Extraction Method for Action Detection on Artificial Knee by Fractional Fourier Transform

> Research article (Micromachines, 2019) · cited 11× · AI/ML

**Wikidata**: [openalex:W2946605236](https://www.wikidata.org/wiki/openalex:W2946605236)  
**Source**: https://4ort.xyz/entity/a-new-timefrequency-feature-extraction-method-for-action-detection-on-artificial-knee-by-fractional-fourier-transform