Extraction and analysis of doppler frequency of wind turbines and effect on radar signals Jung, Joo-Ho; Kang, Ki-Bong; Kim, Min; Kim, Jeung-Yuen; Park, Sang-Hong;
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.
J. H. Jung, U. Lee, S. H. Kim, and S. H. Park, "Micro-Doppler analysis of Korean offshore wind turbine on the L-band radar", Progress in Electromagnetics Research, vol. 143, pp. 87-104, 2013.
S. H. Suk, RCS Prediction of Complex Targets, Ph. D. Dissertation, Department of Electrical Engineering, Pohang University of Science and Technology, Korea, 2001.
J. H. Jung, K. T. Kim, S. H. Kim, and S. H. Park, "Micro-Doppler extraction and analysis of the ballistic missile using RDA based on the real flight scenario", Progress in Electromagnetics Research M, vol. 37, pp. 83-93, 2014.
H. Gao, L. Xie, S. Wen, and Y. Kuang, "Micro-Doppler signature extraction from ballistic target with micro-motions", IEEE Transactions on Aerospace and Electronic Systems, vol. 46, no. 4, pp. 1969-1982, 2010.
B. Mahafza, MATLAB Simulations for Radar Systems Design Using MATLAB, Champman & Hall/CRC Press LLC, 2000.
M. Soumekh, Synthetic Aperture Radar Signal Processing with MATLAB Algorithms, John Wiley & Sons, Inc., 1999.
S. Qian, Introduction to Time-frequency and Wavelet Transforms, Prentice Hall, 2002.
H. K. Park, A Study on the Comparison Between EMI/EMC Analysis Methods of Vessels in the UHF Region, M.S. Thesis, Department of Electrical Engineering, Pohang University of Science and Technology, Korea, 2008.