IET Radar, Sonar & Navigation | Palamà R, Fioranelli F, Ritchie M, Inggs M, Lewis S, et al. | This article presents the results of a series of measurements of multistatic radar signatures of small ...
Measurements and discrimination of drones and birds with a multiâ€frequency multistatic radar system
Abstract
This article presents the results of a series of measurements of multistatic radar signatures of small UAVs at L†and Xâ€bands. The system employed was the multistatic multiband radar system, NeXtRAD, consisting of one monostatic transmitterâ€receiver and two bistatic receivers. NeXtRAD is capable of recording simultaneous bistatic and monostatic data with baselines and twoâ€way bistatic range of the order of a few kilometres. The paper presents an empirical analysis with rangeâ€time plots and microâ€Doppler signatures of UAVs and birds of opportunity recorded at several hundred metres of distance. A quantitative analysis of the overall signalâ€toâ€noise ratio is presented along with a comparison between the power of the signal scattered from the drone body and blades. A simple study with empirically obtained features and four supervisedâ€learning classifiers for binary drone versus nonâ€drone separation is also presented. The results are encouraging with classification accuracy consistently above 90% using very simple features and classification algorithms.
Publication Type: | Journal article |
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Publication Sub Type: | Article |
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Authors: | Palamà R, Fioranelli F, Ritchie M, Inggs M, Lewis S, Griffiths H |
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Publisher: | Institution of Engineering and Technology (IET)Â |
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Publication date: | 09/04/2021 |
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Pagination: | 1-12 |
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Journal: | IET Radar, Sonar & Navigation |
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Status: | Published Online |
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Print ISSN: | 1751-8784 |
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DOI: | |
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