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Experimental Analysis of Small Drone Polarimetry

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작성자 최고관리자 작성일18-04-06 10:57 조회321회 댓글0건

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Byung Kwan Kim, Hyun-Seong Kang, Seong-Ook Park, “Experimental Analysis of Small Drone Polarimetry Based on Micro-Doppler Signature”, IEEE Geoscience and Remote Sensing Letters, Vol.14, Iss.10, Oct. 2017

 

Abstract

We present a polarimetric analysis of small drones from different aspect angles. Polarimetric analysis can provide more information of a target, since the returned radar signal is affected by different wave polarization. The analysis is performed with micro-Doppler signature (MDS) to investigate micromotions of the drone detected by the radar. We measured operating small drones in an anechoic chamber from two aspect angles, 0° and 90°. An outdoor experiment was carried out with metal clutters for verification in real environment. The indoor analysis result shows that copolarized antenna receives signals better than cross polarized when the aspect angle is 0°, and vice versa. We also verified that cross-polarized antenna receives MDS from the drone better than copolarized antenna, from outdoors when an aspect angle is almost 90°. By utilizing the polarimetric characteristic of the drone at this frequency band, it is preferable to use a polarimetric radar for drone detection.

Index Terms—Drones, micro-Doppler signature (MDS), polarimetric radar, radar detection, radar signal analysis, unmanned aerial vehicle.

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