Open access
Oct 2026
Improving Smartphone Pedestrian Positioning in Urban Canyons Through PDR-Constrained GNSS Shadow Matching
Smartphone global navigation satellite system (GNSS) positioning in building-obstructed environments is degraded by non-line-of-sight reception and multipath. Visibility-based shadow matching (SM) exploits three-dimensional building models to constrain cross-street position but has limited along-street observability. T...
Ni-Jia Qian, Xiang-Geng Han, Guo-Bin Chang et al.
· Applied Sciences · 0 citations