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Detecting and mitigating wind turbine clutter for airspace radar systems.

Wen-Qin Wang1

  • 1School of Communication & Information Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China.

Thescientificworldjournal
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PubMed
Summary

This study presents a transponder-based method to mitigate wind turbine radar interference. The technique efficiently identifies and reduces wind farm effects on radar systems, ensuring clearer signals.

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Area of Science:

  • Radar Systems Engineering
  • Electromagnetics and Signal Processing
  • Renewable Energy Technology

Background:

  • Wind turbines possess large radar cross-sections (RCS) and blade movement causes Doppler shifts, interfering with ground-based, airborne, and spaceborne radars.
  • Existing radar systems face significant interference from wind farms, necessitating effective mitigation strategies.
  • Current mitigation approaches may be inefficient for the localized impact of wind farms.

Purpose of the Study:

  • To develop and validate an efficient transponder-based technique for mitigating wind farm interference on radar systems.
  • To introduce a method that selectively mitigates radar interference only when wind farms are detected.
  • To adapt and demonstrate the technique for airborne synthetic aperture radar (SAR) and pulse Doppler radar systems.

Main Methods:

  • A transponder system is employed to detect potential radar interference from wind turbines.
  • Interference is mitigated using Kalman filtering or plot target extraction algorithms when detected.
  • System configurations and processing algorithms are detailed for airborne SAR and pulse Doppler radar.

Main Results:

  • The transponder effectively identifies radar impacts from wind farms.
  • Subsequent filtering and extraction algorithms successfully mitigate the identified interference.
  • Numerical simulations validate the effectiveness of the proposed mitigation technique.

Conclusions:

  • The presented transponder-based method offers an efficient solution for mitigating wind farm radar interference.
  • Selective mitigation processing reduces computational redundancy and improves cost-efficiency.
  • The validated technique enhances the performance of airborne and ground-based radar systems in areas with wind farms.