Millimeter-wave micro-Doppler measurements of small UAVs

Samiur Rahman; Duncan A. Robertson

doi:10.1117/12.2261942

Abstract

This paper discusses the micro-Doppler signatures of small UAVs obtained from a millimeter-wave radar system. At first, simulation results are shown to demonstrate the theoretical concept. It is illustrated that whilst the propeller rotation rate of the small UAVs is quite high, millimeter-wave radar systems are capable of capturing the full micro-Doppler spread. Measurements of small UAVs have been performed with both CW and FMCW radars operating at 94 GHz. The CW radar was used for obtaining micro-Doppler signatures of individual propellers. The field test data of a flying small UAV was collected with the FMCW radar and was processed to extract micro-Doppler signatures. The high fidelity results clearly reveal features such as blade flashes and propeller rotation modulation lines which can be used to classify targets. This work confirms that millimeter-wave radar is suitable for the detection and classification of small UAVs at usefully long ranges.

Conference Presentation

Citation Download Citation

Samiur Rahman, Samiur Rahman, Duncan A. Robertson, Duncan A. Robertson, } "Millimeter-wave micro-Doppler measurements of small UAVs", Proc. SPIE 10188, Radar Sensor Technology XXI, 101880T (1 May 2017); doi: 10.1117/12.2261942; https://doi.org/10.1117/12.2261942

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