Millimeter-wave radar micro-Doppler feature extraction of consumer drones and birds for target discrimination

Samiur Rahman; Duncan A. Robertson

doi:10.1117/12.2518846

3 May 2019 Millimeter-wave radar micro-Doppler feature extraction of consumer drones and birds for target discrimination

Samiur Rahman, Duncan A. Robertson

Author Affiliations +

Proceedings Volume 11003, Radar Sensor Technology XXIII; 110030S (2019) https://doi.org/10.1117/12.2518846
Event: SPIE Defense + Commercial Sensing, 2019, Baltimore, MD, United States

Abstract

This paper discusses the various millimeter-wave radar micro-Doppler features of consumer drones and birds which can be fed to a classifier for target discrimination. The proposed feature extraction methods have been developed by considering the micro-Doppler signature characteristics of in-flight targets obtained with a frequency modulated continuous wave (FMCW) radar. Three different drones (DJI Phantom 3 Standard, DJI Inspire 1 and DJI S900) and four birds of different sizes (Northern Hawk Owl, Harris Hawk, Indian Eagle Owl and Tawny Eagle) have been used for the feature extraction and classification. The data for all the targets was obtained with a fixed beam W-band (94 GHz) FMCW radar. The extracted features have been fed to two different classifiers for training (linear discriminant and support vector machine (SVM)). It is shown that the classifiers using these features can clearly distinguish between a drone and a bird with 100% prediction accuracy and are able to differentiate between various sizes of drones with more than 90% accuracy. The results demonstrate that the proposed algorithm is a very suitable candidate as an automatic target recognition technique for a practical FMCW radar based drone detection system.

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Samiur Rahman and Duncan A. Robertson "Millimeter-wave radar micro-Doppler feature extraction of consumer drones and birds for target discrimination ", Proc. SPIE 11003, Radar Sensor Technology XXIII, 110030S (3 May 2019); https://doi.org/10.1117/12.2518846

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