# Multi-Floor Indoor Pedestrian Dead Reckoning with a Backtracking Particle Filter and Viterbi-Based Floor Number Detection

> Research article (Sensors, 2021) · cited 23× · AI/ML

**Wikidata**: [openalex:W3179988943](https://www.wikidata.org/wiki/openalex:W3179988943)  
**Source**: https://4ort.xyz/entity/multi-floor-indoor-pedestrian-dead-reckoning-with-a-backtracking-particle-filter-and-viterbi-based-floor-number-detectio