# An Indoor and Outdoor Seamless Positioning System for Low-Cost UGV Using PPP/INS/UWB Tightly Coupled Integration

> Research article (IEEE Sensors Journal, 2023) · cited 21× · AI/ML

**Wikidata**: [openalex:W4386473161](https://www.wikidata.org/wiki/openalex:W4386473161)  
**Source**: https://4ort.xyz/entity/an-indoor-and-outdoor-seamless-positioning-system-for-low-cost-ugv-using-ppp-ins-uwb-tightly-coupled-integration