16 September 2019

IPNL at ION GNSS+ 2019

IPNL presented research at the ION GNSS+ 2019 conference, held from September 16 to 20, 2019, in Miami, Florida. ION GNSS+ is the world’s largest technical meeting and showcase of GNSS technology, systems, and applications, organized annually by the Institute of Navigation. The conference draws satellite navigation researchers and industry professionals from across the globe and serves as a premier venue for disseminating advances in positioning, navigation, and timing.

The IPNL team presented multiple contributions reflecting the lab’s core research strengths. Key topics included GNSS non-line-of-sight (NLOS) detection and correction using 3D LiDAR and building height data, vector tracking loop-based approaches for NLOS mitigation, and intelligent GPS signal classification using machine learning techniques at correlator, RINEX, and NMEA levels. These presentations demonstrated the lab’s sustained efforts to improve GNSS positioning accuracy in dense urban environments where multipath interference and signal blockage are prevalent.

Additional research presented at the conference addressed tightly coupled GNSS/INS integration via factor graph optimization aided by fish-eye camera imagery, as well as the rectification of GNSS-based collaborative positioning using 3D building models. These works highlighted IPNL’s interdisciplinary approach of combining satellite navigation with computer vision, inertial sensing, and urban 3D mapping databases to achieve robust positioning solutions for intelligent vehicles and autonomous systems.