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http://dx.doi.org/10.5916/jkosme.2015.39.9.947

Extraction and analysis of doppler frequency of wind turbines and effect on radar signals  

Jung, Joo-Ho (Department of Electrical Engineering, Pohang University of Science and Technology)
Kang, Ki-Bong (Department of Electronic Engineering, Pukyong National University)
Kim, Min (Department of Electronic Engineering, Pukyong National University)
Kim, Jeung-Yuen (Korea Offshore Wind Power)
Park, Sang-Hong (Department of Electronic Engineering, Pukyong National University)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.39, no.9, 2015 , pp. 947-952 More about this Journal
Abstract
To supplement energy needs and take advantage of renewable energy sources, many wind farms are currently being built in mountainous areas under the supervision of the Korean government. However, operation of these wind farms can cause serious threats to national security due to Doppler modulation from the wind turbines causing interference with military radar operating in the vicinity. Therefore it is necessary to develop methods to analyze the Doppler frequency during the operation of wind turbines and the effect on radar signals. Based on modeling of the mountainous region, blockage analysis, turbine motion and the radar signals, this paper proposes a signal processing method to extract and analyze the Doppler frequency. Simulation results showed the change of Doppler frequency over time caused by the geometry of the mountainous area and the wind turbine.
Keywords
Wind farm; Wind turbine; Doppler modulation; Chirp; Blockage analysis;
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