# An Intrusion Detection Method Based on Machine Learning and State Observer for Train-Ground Communication Systems

> Research article (IEEE Transactions on Intelligent Transportation Systems, 2021) · cited 57× · AI/ML

**Wikidata**: [openalex:W3131991398](https://www.wikidata.org/wiki/openalex:W3131991398)  
**Source**: https://4ort.xyz/entity/an-intrusion-detection-method-based-on-machine-learning-and-state-observer-for-train-ground-communication-systems