Minneapolis, MN—Dr. Todd Humphreys delivered a seminar at the Roadway Safety Insititute at University of Minnesota, where he talked about Low-Cost Centimeter-Accurate Mobile Positioning with attention to application in Vehicular Networks. GNSS, along with other sensors, will be a part of the Connected (Semi-) Autonomous Vehicles of the future, and accurate location and timing via GNSS is an important aspect of roadway safety.

The primary barrier to performing centimeter-accurate carrier-phase-differential GNSS (CDGNSS) positioning on smartphones and other consumer devices is their low-cost, low-quality GNSS antennas that have poor multipath suppression. The time correlation of multipath errors and their magnitude significantly increases the initialization period of GNSS receivers using low-cost antennas.

This presentation focused on techniques for reducing the initialization time for centimeter-accurate positioning on mobile devices. It further examined technical and market prerequisites for improved safety for semi-autonomous and autonomous vehicles, globally registered augmented and virtual reality, and crowd-sourced three-dimensional mapping.

Watch the full length presentation at Roadway Safety Institute webpage.