Science Daily  March 15, 2022 Insect vision systems have been mapped for some time now to improve camera-based detections. Researchers in Australia shown that it is possible pick up clear and crisp acoustic signatures of drones, including very small and quiet ones, using an algorithm based on the hoverfly’s visual system. They converted acoustic signals into spectrograms and used the neural pathway of the hoverfly brain to improve and suppress unrelated signals and noise, increasing the detection range for the sounds they wanted to detect. They looked for narrowband and/or broadband to pick up drone acoustics at short to medium […]