The SSEF filter and the CMD algorithm on the X-band dual-polarization Doppler weather radar

Identification and mitigation of ground clutter are crucial problems in radar meteorology because the ground-clutters contaminate radar echoes and mask weather echoes. In this paper, two algorithms, Spectral Stationary Echo Filter (SSEF) and the clutter mitigation decision (CMD), are introduced to address the contamination of ground clutter on radar products, and performances of them are tested with raw data of an X-band radar in Foshan Nanhai radar site. Moreover, the CMD algorithm is adopted to prevent the zero velocity weather echoes from being filtered by the SSEF filter. Results show the good performance of the approach.