Spectral momens estimation of airborne weather radar based on Capon

Abstract

Abstract:

Airborne weather radar is a key equipment to detect the turbulence existing in flight path and is very important for aviation safety. The operation of airborne weather radar is mainly based on the estimation of first three spectral momens of radar echoes,including power,mean frequency and spectrum width. A covariance matrix model of the radar echoes is deduced from its Gaussian shape spectrum. And then the Capon method,which is used in line spectrum estimation,is employed to estimate the spectral momens. Finally,Monte Carlo simulations demonstrate the proposed method has a good performance even under low SNR.

Key words: airborne weather radar, weather target detection, spectral momens estimation, parametric method

CLC Number:

LU Xiao-guang. Spectral momens estimation of airborne weather radar based on Capon[J]. .

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