Australian Firm Tests Gravity Navigation to Counter GPS Denial at Sea

Australian quantum tech firm Q-CTRL is moving closer to GPS-free navigation by turning to gravity.

In a recent field trial with the Royal Australian Navy, the company’s “software-ruggedized” quantum sensors operated aboard the MV Sycamore for 144 hours, navigating the ocean by detecting shifts in Earth’s gravity.

Instead of relying on satellite signals, the sensors compared these gravitational changes against known gravity maps, allowing a computer to determine position and navigate areas without the need for a GPS. 

Read the full story on NextGen Defense: Australian Firm Tests Gravity Navigation to Counter GPS Denial at Sea