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Preprint Oct 2026

GLIO2: A GPU-Parallelized Tightly-Coupled LiDAR-Inertial-GNSS System for Robust and Real-Time Global Localization and Mapping

Globally consistent, real-time state estimation in large-scale, perceptually degraded environments is essential for autonomous vehicles and aerial robots, and requires fusing LiDAR, inertial, and GNSS measurements. Existing fusion methods, however, share a scan-to-map front-end with two failure modes. First, each scan...

Qi Zhang, Xi-Kun Liu, Qi Qin et al. · 0 citations
Review 2026

Double-Difference Iridium/GNSS Hybrid Positioning: Signal Processing and Experimental Evaluation

Global navigation satellite systems (GNSSs) suffer from signal blockage and multipath effects in dense urban environments, leading to degraded positioning performance. Low Earth orbit (LEO) satellites provide stronger received signals and larger Doppler variations, making them promising complementary navigation sources...

Qi Zhang, Bing Xu · 0 citations

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