# Magnetic Field Gradient-Based EKF for Velocity Estimation in Indoor Navigation

> Research article (Sensors, 2020) · cited 24× · AI/ML

**Wikidata**: [openalex:W3092613417](https://www.wikidata.org/wiki/openalex:W3092613417)  
**Source**: https://4ort.xyz/entity/magnetic-field-gradient-based-ekf-for-velocity-estimation-in-indoor-navigation