# A Novel Linear Spectrum Frequency Feature Extraction Technique for Warship Radio Noise Based on Complete Ensemble Empirical Mode Decomposition with Adaptive Noise, Duffing Chaotic Oscillator, and Weighted-Permutation Entropy

> Research article (Entropy, 2019) · cited 45× · AI/ML

**Wikidata**: [openalex:W2945706449](https://www.wikidata.org/wiki/openalex:W2945706449)  
**Source**: https://4ort.xyz/entity/a-novel-linear-spectrum-frequency-feature-extraction-technique-for-warship-radio-noise-based-on-complete-ensemble-empiri