Output details

Real-time monitoring of weather radar antenna pointing using digital terrain elevation and a Bayes clutter classifier

This paper presents a novel technique to monitor continuously the azimuthal pointing accuracy of an operational weather radar antenna. The technique consists of cross-correlating between modelled and measured echoes from ground clutter in real-time at low elevation angles under precipitation and non-precipitation conditions. The azimuthal angle lag with the maximum cross-correlation indicates the adjustment needed in antenna pointing. The modelled ground clutter echoes were obtained using a high-resolution digital elevation model (DEM) whereas the measured ground clutter echoes were obtained in real-time using a Bayes classifier that identifies the clutter echoes in the presence of precipitation. IF 1.32.