# An accurate train positioning method using tightly-coupled GPS + BDS PPP/IMU strategy

> Research article (GPS Solutions, 2022) · cited 11× · AI/ML

**Wikidata**: [openalex:W4226167091](https://www.wikidata.org/wiki/openalex:W4226167091)  
**Source**: https://4ort.xyz/entity/an-accurate-train-positioning-method-using-tightly-coupled-gps-bds-ppp-imu-strategy