Millimeter-wave micro-Doppler measurements of small UAVs
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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.
Rahman , S & Robertson , D A 2017 , Millimeter-wave micro-Doppler measurements of small UAVs . in K I Ranney & A Doerry (eds) , Radar Sensor Technology XXI . , 101880T , Proceedings of SPIE , vol. 10188 , SPIE , Radar Sensor Technology XXI 2017 , Anaheim , United States , 10/04/17 . DOI: 10.1117/12.2261942conference
Radar Sensor Technology XXI
© 2017, SPIE. This work has been made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at https://doi.org/10.1117/12.2261942
The authors acknowledge the funding received from the Science and Technology Facilities Council which has supported this work under grant ST/N006569/1.
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