Real-Time Spectral Moments Estimation and Ground Clutter Suppression for Precipitation Radar with High Resolution

Eiichi YOSHIKAWA  Tomoaki MEGA  Takeshi MORIMOTO  Tomoo USHIO  Zen KAWASAKI 

Publication
IEICE TRANSACTIONS on Communications  Vol.E92-B  No.2  pp.578-584
Publication Date: 2009/02/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Sensing
Keyword: 
broad band radar,  weather radar,  Doppler spectrum moments,  parameter estimation, 

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Summary: 
The purpose of this study is the real-time estimation of Doppler spectral moments for precipitation in the presence of ground clutter overlap. The proposed method is a frequency domain approach that uses a Gaussian model both to remove clutter spectrum and to estimate weather spectrum. The main advantage of this method is that it does not use processes like several fitting procedures and enables to estimate profiles of precipitation in a short processing time. Therefore this method is efficient for real-time radar observation with high range and time resolution. The performance of this method is evaluated based on simulation data and the observation data acquired by the Ku-band broad band radar (BBR) [1].