DOI: 10.3724/SP.J.1146.2012.01541

Journal of Electronics & Information Technology (电子与信息学报) 2013/35:12 PP.2863-2867

Study of Simulating Anomalous Ground Echoes for Doppler Weather Radar

Ground and sea echoes with anomalous propagation are serious issues affecting Doppler radar data quality. Based on the weather radar equation and the propagation model for tropospheric duct, a method of calculating the ground and sea echoes of weather radar is presented. With refractivity profiles and digital elevation data as input, the method can calculate the distribution of the path loss. Then the reflectivity fields can be obtained considering the parameters of the radar and the scatting coefficient of the earth surface. The ground and sea echoes are simulated in standard and atmospheric duct environments for Doppler weather radar located at the coast of Bohai, which indicate the effectiveness of the method in simulating the anomalous echoes.

Key words:Doppler weather radar,Atmospheric duct,Path loss,Parabolic equation

ReleaseDate:2014-07-21 17:04:28