Browse > Article
http://dx.doi.org/10.6109/jkiice.2015.19.9.1999

A Study on Improvement of Doppler Frequency Estimation Method in a Weather Radar  

Lee, Jonggil (Department of Information and Telecommunication Engineering, Incheon National University)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.19, no.9, 2015 , pp. 1999-2005 More about this Journal
Abstract
A wind velocity is measured in a weather radar as well as the strength of return echoes from rain clouds. These wind velocities are obtained through estimation of Doppler frequencies in return signals. This kind of Doppler frequency estimation method is called as a correlation method. It is widely used in most weather radars because of less computation time. However, it may cause serious errors if a spectrum is not symmetric. Therefore, in this paper, it is shown that the improved method using 3rd order phase estimation model yields the more accurate estimation of the average Doppler frequency using various simulated weather data.
Keywords
Doppler spectrum; Wind velocity measurement; Doppler frequency estimation; Correlation function;
Citations & Related Records
연도 인용수 순위
  • Reference
1 K. H. Lai et al,, “Super-fast scanning technique for phased array weather radar applications,” Radar, Sonar and Navigation, IEE Proceedings, vol. 151, no. 5, pp. 271-279, 2004.   DOI
2 K. S. Miller and M. C. Rochwarger, “A covariance approach to spectral moment estimation,” IEEE Trans. Information Theory, vol. IT-18, pp. 558-596, 1972.
3 R. F. Woodman, “Spectral moment estimation in MST radars,” Radio Science, vol. 20, pp. 1185-1195, 1985.   DOI
4 L. H. Janssen and G. A. Van der Spek, “The shape of Doppler spectra from precipitation,” IEEE Trans. Aerosp. Electron. Syst., vol. 21, pp. 208-219, 1985.   DOI
5 I. A. Lunt et al., " Soil moisture content estimation using ground penetrating radar reflection data," Journal of Hydrology, pp. 254-269, 2005.   DOI
6 K. A. Lukin et al., "Ka-band bistatic ground-based noise waveform SAR for short-range applications," IET Radar, Sonar Navigation, vol. 2, no. 4, pp. 233-243, 2008.   DOI
7 A. Tessmann et al., “Compact single-chip W-band FMCW radar modules for commercial applications,” IEEE Trans. Microwave Theory and Techniques, vol. 50, no. 12, pp. 2995-3001, 2002.   DOI
8 M. Yeary et al., “A brief overview of weather radar technologies and instrumentation,” IEEE Instrumentation and Measurement Magazine, vol. 17, no. 5, pp. 10-15, 2014.   DOI
9 F. S. Marzano et al., “Volcanic ash cloud retrieval by ground-based microwave weather radar,” IEEE Trans. Geoscience and Remote Sensing, vol. 44, no. 11, pp. 3235-3246, 2006.   DOI