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Detecting and Mitigating Wind Turbine Clutter for Airspace Radar Systems

It is well recognized that a wind turbine has a large radar cross-section (RCS) and, due to the movement of the blades, the wind turbine will generate a Doppler frequency shift. This scattering behavior may cause severe interferences on existing radar systems including static ground-based radars and...

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Autor principal: Wang, Wen-Qin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3872239/
https://www.ncbi.nlm.nih.gov/pubmed/24385880
http://dx.doi.org/10.1155/2013/385182
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author Wang, Wen-Qin
author_facet Wang, Wen-Qin
author_sort Wang, Wen-Qin
collection PubMed
description It is well recognized that a wind turbine has a large radar cross-section (RCS) and, due to the movement of the blades, the wind turbine will generate a Doppler frequency shift. This scattering behavior may cause severe interferences on existing radar systems including static ground-based radars and spaceborne or airborne radars. To resolve this problem, efficient techniques or algorithms should be developed to mitigate the effects of wind farms on radars. Herein, one transponder-based mitigation technique is presented. The transponder is not a new concept, which has been proposed for calibrating high-resolution imaging radars. It modulates the radar signal in a manner that the retransmitted signals can be separated from the scene echoes. As wind farms often occupy only a small area, mitigation processing in the whole radar operation will be redundant and cost inefficient. Hence, this paper uses a transponder to determine whether the radar is impacted by the wind farms. If so, the effects of wind farms are then mitigated with subsequent Kalman filtering or plot target extraction algorithms. Taking airborne synthetic aperture radar (SAR) and pulse Doppler radar as the examples, this paper provides the corresponding system configuration and processing algorithms. The effectiveness of the mitigation technique is validated by numerical simulation results.
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spelling pubmed-38722392014-01-02 Detecting and Mitigating Wind Turbine Clutter for Airspace Radar Systems Wang, Wen-Qin ScientificWorldJournal Research Article It is well recognized that a wind turbine has a large radar cross-section (RCS) and, due to the movement of the blades, the wind turbine will generate a Doppler frequency shift. This scattering behavior may cause severe interferences on existing radar systems including static ground-based radars and spaceborne or airborne radars. To resolve this problem, efficient techniques or algorithms should be developed to mitigate the effects of wind farms on radars. Herein, one transponder-based mitigation technique is presented. The transponder is not a new concept, which has been proposed for calibrating high-resolution imaging radars. It modulates the radar signal in a manner that the retransmitted signals can be separated from the scene echoes. As wind farms often occupy only a small area, mitigation processing in the whole radar operation will be redundant and cost inefficient. Hence, this paper uses a transponder to determine whether the radar is impacted by the wind farms. If so, the effects of wind farms are then mitigated with subsequent Kalman filtering or plot target extraction algorithms. Taking airborne synthetic aperture radar (SAR) and pulse Doppler radar as the examples, this paper provides the corresponding system configuration and processing algorithms. The effectiveness of the mitigation technique is validated by numerical simulation results. Hindawi Publishing Corporation 2013-12-05 /pmc/articles/PMC3872239/ /pubmed/24385880 http://dx.doi.org/10.1155/2013/385182 Text en Copyright © 2013 Wen-Qin Wang. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Wang, Wen-Qin
Detecting and Mitigating Wind Turbine Clutter for Airspace Radar Systems
title Detecting and Mitigating Wind Turbine Clutter for Airspace Radar Systems
title_full Detecting and Mitigating Wind Turbine Clutter for Airspace Radar Systems
title_fullStr Detecting and Mitigating Wind Turbine Clutter for Airspace Radar Systems
title_full_unstemmed Detecting and Mitigating Wind Turbine Clutter for Airspace Radar Systems
title_short Detecting and Mitigating Wind Turbine Clutter for Airspace Radar Systems
title_sort detecting and mitigating wind turbine clutter for airspace radar systems
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3872239/
https://www.ncbi.nlm.nih.gov/pubmed/24385880
http://dx.doi.org/10.1155/2013/385182
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