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Learning from the Hoverfly improves drone detection
27/07/2022
The hoverfly’s visual system is well adapted to locating targets in low light environments. The insect works constantly to pick out useful visual information from a lot of confusing noise, and as a result, their photoreceptor systems have become extremely effective at taking complex, cluttered and noisy feeds of information, and boosting the signal-to-noise ratio to make useful bits ‘jump out’.
By developing an algorithm based on the hoverfly’s visual system, the research team have managed to successfully reverse engineer it and apply it to audio. This has enabled them to detect drones’ acoustic signatures from almost four kilometres away.
The team claim that their trials using the bio-inspired signal processing techniques show up to a 49 per cent better detection rate than existing methods. Furthermore, they stress the importance of long distance drone detection for both commercial and military use cases. To quote one of the lead researchers: “The impact of UAVs in modern warfare is also becoming evident during the war in Ukraine, so keeping on top of their location is actually in the national interest. Our research aims to extend the detection range considerably as the use of drones increases in the civilian and military space.”
By developing an algorithm based on the hoverfly’s visual system, the research team have managed to successfully reverse engineer it and apply it to audio. This has enabled them to detect drones’ acoustic signatures from almost four kilometres away.
The team claim that their trials using the bio-inspired signal processing techniques show up to a 49 per cent better detection rate than existing methods. Furthermore, they stress the importance of long distance drone detection for both commercial and military use cases. To quote one of the lead researchers: “The impact of UAVs in modern warfare is also becoming evident during the war in Ukraine, so keeping on top of their location is actually in the national interest. Our research aims to extend the detection range considerably as the use of drones increases in the civilian and military space.”
Estimated time to maturity: 2 to 5 years
Source: University of South Australia