# GNSS PPP-RTK tightly coupled with low-cost visual-inertial odometry aiming at urban canyons

> Research article (Journal of Geodesy, 2023) · cited 28× · AI/ML

**Wikidata**: [openalex:W4382699427](https://www.wikidata.org/wiki/openalex:W4382699427)  
**Source**: https://4ort.xyz/entity/gnss-ppp-rtk-tightly-coupled-with-low-cost-visual-inertial-odometry-aiming-at-urban-canyons