# Multiple ultrasonic aiding system for car navigation in GNSS denied environment

> Research article (2018 IEEE/ION Position, Location and Navigation Symposium (PLANS), 2018) · cited 10× · AI/ML

**Wikidata**: [openalex:W2807213851](https://www.wikidata.org/wiki/openalex:W2807213851)  
**Source**: https://4ort.xyz/entity/multiple-ultrasonic-aiding-system-for-car-navigation-in-gnss-denied-environment