Trimble’s RTX helps General Motors’ Super Cruise maintain lane position

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General Motors’ Super Cruise hands-free highway driving system, available on the 2018 Cadillac CT6, makes use of Trimble’s Real-Time eXtended (RTX) GNSS/GPS correction technology to help maintain lane position.

Trimble’s RTX technology provides real-time, multi-constellation GNSS positioning capable of achieving better than 1.5in accuracy. Trimble says standard GPS signals can drift up to 25ft, which could cause incorrect lane identification.

RTX is designed to improve lane-level positioning performance for semi-autonomous and autonomous vehicles, when used in conjunction with high-definition maps, cameras, radar and inertial sensors.

RTX technology uses signals captured by more than 100 Trimble GNSS reference stations around the globe. RTX corrects the signals for atmospheric conditions, satellite orbit and time synchronization errors and then sends those signals to GM vehicles with Super Cruise via OnStar 4G LTE cellular.

The Trimble network is supported by redundant servers that are monitored 24/7 by a team of network engineers and IT specialists to ensure optimal signal performance and reliability.

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As editor of four magazines at UKi Media & Events James brings over a decade of writing about, and obsessing over, technology and cars to Automotive Interiors World, Stadia, Winter Sports Technology International and Auditoria. Responsible for commissioning, writing and editing each issue he’s covered the best (and worst) from around the industry on a continual search to feature the latest innovation or talking point on the next cover.

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