# Regional Refined Long-Term Predictions Method of Usable Frequency for HF Communication Based on Machine Learning Over Asia

> Research article (IEEE Transactions on Antennas and Propagation, 2021) · cited 46× · AI/ML

**Wikidata**: [openalex:W3199287286](https://www.wikidata.org/wiki/openalex:W3199287286)  
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