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Ann. Geophys., 19, 825-836, 2001
www.ann-geophys.net/19/825/2001/
© European Geosciences Union 2001
Wavelet based methods for improved wind profiler signal processing
V. Lehmann1 and G. Teschke2
1Deutscher Wetterdienst, Meteorologisches Observatorium Lindenberg, D-15864 Lindenberg, Germany
2Zentrum für Technomathematik, Universität Bremen, D-28334 Bremen, Germany
Abstract. In this paper, we apply
wavelet thresholding for removing automatically ground and intermittent clutter
(airplane echoes) from wind profiler radar data. Using the concept of discrete
multi-resolution analysis and non-parametric estimation theory, we develop
wavelet domain thresholding rules, which allow us to identify the coefficients
relevant for clutter and to suppress them in order to obtain filtered
reconstructions.
Key words. Meteorology and
atmospheric dynamics (instruments and techniques) – Radio science (remote
sensing; signal processing)
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