New positioning framework cuts satnav convergence time to seconds

By Tracy CozzensPublished June 22, 2026

Schematic of the A-GBPS-augmented GNSS positioning system: GNSS satellites (black) and A-GBPS base stations (gold) broadcast positioning signals; the CBM station (gray) receives these signals and forwards carrier-phase observations to the user (blue). The base stations operate without time synchronization. (Credit: Satellite Navigation)

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Asynchronous GBPS can improves both convergence speed and positioning reliability

Precise point positioning (PPP), a high-accuracy GNSS technique, offers the advantage of centimeter-level positioning without relying on local reference stations. However, PPP often requires many minutes to achieve full precision, making it less suitable for dynamic environments.