Global semiconductor leader STMicroelectronics has launched the world’s first multi-frequency satellite-navigation receiver chipset suitable for safety-critical automotive applications and high accuracy positioning at the decimeter and centimetre-level for Precise Point Positioning (PPP) and Real Time Kinematic (RTK) applications.
Traditional in-car navigation systems help drivers reach their destinations using receivers and commercial satellite services that allow positioning accurate to within a few meters. With increasing use of autonomous systems such as lane-departure warning (LDW), adaptive cruise control (ACC), valet parking, and auto-pilot, greater accuracy is needed to ensure safety and reliability, in combination with proximity sensors such as cameras, radar, lidar, and others, to monitor the driving environment automatically. ST’s automotive-quality Teseo APP (Automotive Precise Positioning) receiver provides high-quality raw GNSS data for PPP and RTK algorithm, which allows accurate positioning and rapid convergence time worldwide. It tracks satellites of all GNSS (Global Navigation Satellite System) constellations simultaneously on at least two of the frequencies used by each system (instead of one in other products), the company said.
“High-accuracy satellite positioning makes autonomous driving safer, smoother, and more reliable. Our newest Teseo APP GNSS chip combines extreme accuracy and precision with industry-unique integrity assurance for use in safety-critical applications,” said Antonio Radaelli, Director, Infotainment Business Unit, STMicroelectronics.
In addition to its high accuracy, the receiver monitors the integrity of the satellite data to alert the system if accuracy is degraded for any reason. Teseo APP also integrates a secure microcontroller for secure system boot and data-output authentication to keep sensitive data safe from attack.
ST is now supplying product samples to lead customers who are developing autonomous-driving systems expected to appear first in high-end vehicles launched in 2020-2021.