https://techcrunch.com/2021/04/27/exyn-technologies-achieves-highest-level-of-aerial-autonomy/

Exyn Technologies announced Tuesday that it has achieved what it considers the highest level of aerial autonomy reached within the industry. The key to the achievement is that Exyn drones are immune to GPS signal loss, meaning all spatial and mapping computations are done onboard, the company said.

Under Exyn’s definitions of autonomy, which are based on a similar standard applied to automotive, the company’s drones have achieved Level 4A autonomy. This means the drones are able to explore a designated 3D area without a remote operator in the backseat, according to Exyn.