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Jie Yu

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Proceedings Article | 5 November 2020 Paper

Radar micro-Doppler signatures of small UAVs

Jie Yu, Yulan Liu, Haohao Hou

Proceedings Volume 11567, 115671K (2020) https://doi.org/10.1117/12.2579406

KEYWORDS: Unmanned aerial vehicles, Radar, Polarization, Doppler effect, Target detection, Fourier transforms, Feature extraction

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In recent years, the number of small unmanned aerial vehicles (UAVs) present in the airspace around us has increased dramatically. Unmanned aerial systems were traditionally associated with military use, however, the increase in drone activity is far from exclusively being generated by increased military use. The increase in micro-UAVs has made it a tough challenge for the detection of UAVs. The demand for measurement and analyze of radar characteristics of UAVs is increasing significantly. This paper focuses on the Radar Micro-Doppler signatures of small UAVs, and experiments were conducted to support the analysis. In this paper, the characteristic of rotor blades were shown, and the doppler signatures of a real micro-drone were measured by a pulse radar system, and the short time Fourier transform was used to analyze the micro-doppler signatures from the data collected.

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