22nd International Conference on Interactive Information Processing Systems for Meteorology, Oceanography, and Hydrology


Application and issues of SZ phase coding for NEXRAD

J. C. Hubbert, NCAR, Boulder, CO; and G. Meymaris, S. Ellis, and M. Dixon

Mitigation of range-velocity ambiguities is an on going concern of weathers radars. SZ phase coding of the transmitted pulses is a now well know technique for resolving range overlaid echoes without lengthening the pulse repetition time which would decrease the unambiguous velocity. SZ phase coding has been approved for installment on the NEXRAD network and should be deployed in the near future. This paper reports some of the results and issues of using SZ phase coding and also makes suggestion for improvements in the SZ algorithm. One topic investigated is the effects of the time series window type and length. Longer windows mean better SZ performance statistics and better clutter filter performance. Also, the integration of SZ with other technologies such as super resolution data data is discussed. Experimental data gathered with NCAR's S-Pol is used to demonstrate suggested signal processing techniques.

extended abstract  Extended Abstract (960K)

wrf recording  Recorded presentation

Session 9, Radar IIPS and Applications Part I
Wednesday, 1 February 2006, 8:30 AM-11:30 AM, A411

Previous paper  Next paper

Browse or search entire meeting

AMS Home Page