# Double Feature Extraction Method of Ship-Radiated Noise Signal Based on Slope Entropy and Permutation Entropy

> Research article (Entropy, 2021) · cited 69× · AI/ML

**Wikidata**: [openalex:W4200429553](https://www.wikidata.org/wiki/openalex:W4200429553)  
**Source**: https://4ort.xyz/entity/double-feature-extraction-method-of-ship-radiated-noise-signal-based-on-slope-entropy-and-permutation-entropy