A study has outlined the critical needs and essential technologies for a low Earth orbit (LEO) constellation to augment satellite navigation systems, significantly improving the Positioning, Navigation and Timing (PNT) services. This research specifically targets the diverse demands of different users for LEO augmented Global Navigation Satellite Systems (GNSS), the possible contribution of LEOs to PNT performances, and the key technologies referring to the LEO-based navigation augmentation system.
Advancing satellite-based PNT service: Low Earth orbit satellite constellations augment the GNSS
