期刊
JOURNAL OF THE ROYAL SOCIETY INTERFACE
卷 9, 期 77, 页码 3260-3267出版社
ROYAL SOC
DOI: 10.1098/rsif.2012.0527
关键词
Drosophila melanogaster; insect flight; behaviour; flight control; aerodynamics
资金
- Swiss National Science Foundation [CR23I2_125419/1]
- Volkswagen Foundation [I/80984-986]
- Human Frontier Science Program [RGP25/2006]
- Swiss National Science Foundation (SNF) [CR23I2_125419] Funding Source: Swiss National Science Foundation (SNF)
Fruitflies regulate flight speed by adjusting their body angle. To understand how low-level posture control serves an overall linear visual speed control strategy, we visually induced free-flight acceleration responses in a wind tunnel and measured the body kinematics using high-speed videography. Subsequently, we reverse engineered the transfer function mapping body pitch angle onto flight speed. A linear model is able to reproduce the behavioural data with good accuracy. Our results show that linearity in speed control is realized already at the level of body posture-mediated speed control and is therefore embodied at the level of the complex aerodynamic mechanisms of body and wings. Together with previous results, this study reveals the existence of a linear hierarchical control strategy, which can provide relevant control principles for biomimetic implementations, such as autonomous flying micro air vehicles.
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