Statistical averaging method for wind profiler doppler spectra

Details Statistical averaging method for wind profiler doppler spectra Statistical averaging method for wind profiler doppler spectra

1995-05-17

1996-10-22

Sotomayor, John B.

Communications: directive radio wave systems and devices (e.g.,

With particular circuit

Spectrum analysis

342 26, 342196, G01S 741, G01S 1395

Patent

active

055681514

ABSTRACT:
This method for Doppler spectral processing more readily identifies the profiler radar return signals from the atmosphere in the presence of contamination, e.g., from bird echoes, ground clutter, and radio frequency interference. Profiler radars measure winds in the atmosphere by using backscatter (i) from refractive index fluctuations in clear air due to turbulence or (ii) from precipitation such as rain or snow. These radars also receive contaminating radar returns from ground clutter (e.g., from vehicles, power lines, and trees) and from fliers (e.g., aircraft, insects, and birds). In general, the radar return signals from the atmosphere have statistical and physical properties different from those properties for the contaminating radar returns. This new method uses these differences to eliminate or reduce contamination in radar Doppler spectra for estimation of atmospheric winds.

REFERENCES:
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patent: 5122805 (1992-06-01), Peterman et al.
patent: 5173704 (1992-12-01), Buehler et al.
patent: 5247303 (1993-09-01), Cornelius et al.
patent: 5294155 (1995-02-01), Rubin et al.
patent: 5469168 (1995-11-01), Anderson

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