# An anti-noise <i>ϕ</i> -OTDR based distributed acoustic sensing system for high-speed railway intrusion detection

> Research article (Laser Physics, 2020) · cited 31× · AI/ML

**Wikidata**: [openalex:W3039409979](https://www.wikidata.org/wiki/openalex:W3039409979)  
**Source**: https://4ort.xyz/entity/an-anti-noise-i-i-otdr-based-distributed-acoustic-sensing-system-for-high-speed-railway-intrusion-detection