Audio based aircraft detection

An aerial vehicle, like a drone, uses several microphones to listen for other aircraft nearby. It filters out its own engine noise from the sounds it hears, then determines how far away other aircraft are and what type they are. This system specifically uses a mix of directional and non-directional microphones that listen to different, asymmetric areas. Based on this information, the drone can then take evasive action.

Why it matters: Real-time machine learning for audio processing and noise cancellation has advanced significantly since 2020. On-board drone processing power also improved, making complex audio analysis more feasible.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: SpecializedMulti-microphone array, audio processing software, flight control

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