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Staggered-PRT Sequences for Doppler Weather Radars. Part II: Ground Clutter Mitigation on the NEXRAD Network Using the CLEAN-AP Filter

Staggered-PRT Sequences for Doppler Weather Radars. Part II: Ground Clutter Mitigation on the... AbstractThe staggered–pulse repetition time (SPRT) technique has been shown to be effective at mitigating range and velocity ambiguities; however, mitigation of ground clutter contamination for SPRT sequences has proven to be more challenging. Using the properties of the autocorrelation spectral density, the Clutter Environment Analysis using Adaptive Processing (CLEAN-AP) filter is extended to SPRT sequences for its implementation on the U.S. Next Generation Weather Radar (NEXRAD) network. The performance of the CLEAN-AP filter for SPRT sequences is characterized and illustrated with simulations and real data. The study shows that the proposed ground clutter filter meets NEXRAD operational performance requirements for ground clutter mitigation. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Atmospheric and Oceanic Technology American Meteorological Society

Staggered-PRT Sequences for Doppler Weather Radars. Part II: Ground Clutter Mitigation on the NEXRAD Network Using the CLEAN-AP Filter

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Publisher
American Meteorological Society
Copyright
Copyright © American Meteorological Society
ISSN
1520-0426
eISSN
1520-0426
DOI
10.1175/JTECH-D-16-0072.1
Publisher site
See Article on Publisher Site

Abstract

AbstractThe staggered–pulse repetition time (SPRT) technique has been shown to be effective at mitigating range and velocity ambiguities; however, mitigation of ground clutter contamination for SPRT sequences has proven to be more challenging. Using the properties of the autocorrelation spectral density, the Clutter Environment Analysis using Adaptive Processing (CLEAN-AP) filter is extended to SPRT sequences for its implementation on the U.S. Next Generation Weather Radar (NEXRAD) network. The performance of the CLEAN-AP filter for SPRT sequences is characterized and illustrated with simulations and real data. The study shows that the proposed ground clutter filter meets NEXRAD operational performance requirements for ground clutter mitigation.

Journal

Journal of Atmospheric and Oceanic Technology – American Meteorological Society

Published: Mar 1, 2017

References

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    Banjanin, Z. B.; Zrnić, D. S.
  • Two-dimensional dealiasing of Doppler velocities
    Jing, Z.; Wiener, G.
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    Moisseev, D. N.; Nguyen, C. M.; Chandrasekar, V.
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    Nguyen, C. M.; Chandrasekar, V.
  • Clutter filtering and spectral moment estimation for Doppler weather radars using staggered pulse repetition time (PRT)
    Sachidananda, M.; Zrnić, D. S.
  • Ground clutter mitigation for weather radars using the autocorrelation spectral density
    Torres, S.; Warde, D.
  • Staggered-PRT sequences for Doppler weather radars. Part I: Spectral analysis using the autocorrelation spectral density
    Torres, S.; Warde, D.
  • Design, implementation, and demonstration of a staggered PRT algorithm for the WSR-88D
    Torres, S.; Dubel, Y.; Zrnić, D. S.
  • The autocorrelation spectral density for Doppler-weather-radar signal analysis
    Warde, D.; Torres, S.
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    Zrnić, D.; Mahapatra, P.