Typical positioning accuracy provided by stand-alone GNSS is 3-10 meters, which is suitable for automotive applications such as navigation and emergency calling. With the advent of high-precision GNSS capable of mitigating the impact of errors, positioning accuracy of less than a decimeter is possible and becomes suitable for more advanced applications such as C-V2X and autonomous driving. Naturally, to be applicable to these security-critical applications, other preconditions must also be met, such as data availability and integrity.

This poster shows different types of error sources and explains how high-precision GNSS calculates and transmits error correction data to vehicles, enabling new automotive GNSS applications.