As a kind of renewable and clean energy, wind energy is widespread concerned by countries around the world. However, it is shown that wind farms have a serious impact on air traffic surveillance radar and weather observation radar. Based on the radar scattering characteristics and micro-motion features of wind turbine, the effect of wind farms on air traffic surveillance radar and weather radar is analyzed systematically from the respects of the influence evaluation and clutter mitigation respectively. This paper gives a comprehensive overview of the influence evaluation methods and clutter mitigation technologies. The key technologies and the problems to be solved are proposed, and the development trend and prospects are also addressed.
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