Avoiding obstacles while intercepting a moving target: A miniature fly's solution

Sam Fabian, Mary E Sumner, Trevor J Wardill & Paloma T Gonzalez Bellido
The miniature robber fly Holcocephala fusca intercepts its targets using a system whose behaviour is approximated by the proportional navigation guidance law. During predatory trials, we challenged Holcocephala's interception performance by placing a large object in its potential flight path. In response, Holcocephala deviated from the path predicted by pure-proportional navigation, but in many cases still eventually contacted the target. We show that such flight deviations can be explained as the output of two competing...
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