There is a conflict in radar parameter design that a rapid update rate and fast beam scanning will result in a short dwell time and poor Doppler resolution. We compared two drone radar detection systems, including Radar-α, with a rapid update rate of 1 Hz and a dwell time of 2.7 ms, and Radar-β, which has moderate numbers of 1/6 Hz and 20 ms, respectively. The detection results of quadrotor drones, DJI Phantom 4, indicate that Radar-β can detect the drone at a longer range of 11.8 km with a detection probability of 86%, much larger than that of 3.6 km and 12% using Radar-α. Furthermore, Radar-β also extracts better micro-Doppler signals (i.e., Jet Engine Modulation, JEM) produced by rotating blades of drones than Radar-α, which benefits the radar classification of radar signals of drones. Therefore, a radar with a moderate radar dwell time and Doppler resolution is a better radar solution for a counter-unmanned aircraft system (C-UAS), with high efficiency in detecting and classifying radar echoes from drones.
Comparison of Two Typical Drone Detection Radar Systems with Different Radar Dwell Time
Lect. Notes Electrical Eng.
International Conference on Autonomous Unmanned Systems ; 2022 ; Xi'an, China September 23, 2022 - September 25, 2022
Proceedings of 2022 International Conference on Autonomous Unmanned Systems (ICAUS 2022) ; Kapitel : 268 ; 2897-2910
10.03.2023
14 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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