On the analysis of clear air radar echoes severely contaminated by clutter

Details On the analysis of clear air radar echoes severely contaminated by clutter On the analysis of clear air radar echoes severely contaminated by clutter

Nov 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993asee.nasa.....i&link_type=abstract

In Alabama Univ., The 1993 NASA/ASEE Summer Faculty Fellowship Program 6 p (SEE N94-24405 06-80)

Computer Science

Clutter, Knowledge Based Systems, Radar Echoes, Signal Analysis, Spectrum Analysis, Atmospheric Turbulence, Lee Waves, Momentum Transfer, Mountains, Observatories, Wind Velocity

Scientific paper

Many radar systems work in environments where clutter return overwhelm the atmospheric echoes. Sometimes by as much as 50 dB. At the Arecibo Observatory (AO), for example, clutter levels are conspicuously high. This situation greatly reduces its usefulness for lower atmospheric studies. It is not possible in general, to observe height profiles of the vertical component of the wind velocity. This parameter is important to understand planetary scale circulation, mountain and lee waves, turbulence, troprospheric and stratorspheric interactions and vertical transport of horizontal momentum. The topics discussed include the following: clutter propagation characteristics, knowledge-based spectral analysis system, and signal analysis system.

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