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![Single-rotor helicopter-style drone used for surveillance [37]. | Download Scientific Diagram](https://www.researchgate.net/profile/Mostafa-Hassanalian/publication/368535797/figure/fig4/AS:11431281120395463@1676484659347/Single-rotor-helicopter-style-drone-used-for-surveillance-37_Q320.jpg "Single-rotor helicopter-style drone used for surveillance [37]. | Download Scientific Diagram")
Single-rotor helicopter-style drone used for surveillance [37]. | Download Scientific Diagram
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