Publisher : The Korean Institute of Information and Commucation Engineering
DOI : 10.6109/jkiice.2015.19.9.1999
Title & Authors
A Study on Improvement of Doppler Frequency Estimation Method in a Weather Radar Lee, Jonggil;
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.
Doppler spectrum;Wind velocity measurement;Doppler frequency estimation;Correlation function;
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