eVTOL GNSS Navigation: Requirements for Urban Air Mobility
An eVTOL GNSS navigation system must deliver four things at once: centimetre RTK position, proven integrity (RAIM+/FDE), immunity to urban RF interference (AIM+), and a fix fast enough for the flight-control loop. Weight is the constraint that makes it hard. You choose between a 14 g integrated receiver, a 60 g 100 Hz board, or…