>To be truly redundant you have to use different technologies, such as camera and lidar. This isn't necessarily true. From a reliability engineering perspectiv

>To be truly redundant you have to use different technologies, such as camera and lidar. This isn't necessarily true. From a reliability engineering perspective it depends on the modes of failure and the probability of each mode. If the probability of an AOA failure is low enough, you can reach your designed risk level by having two identical and redundant components. It all comes down the level of acceptable risk.