Wednesday, 23 January 2008
New science for the WSR-88D: preparing staggered PRT for implementation on the SIGMET RVP8
Exhibit Hall B (Ernest N. Morial Convention Center)
The WSR-88D Radar Operations Center (ROC) is responsible for implementing new signal processing algorithms planned for deployment in the Open Radar Data Acquisition (ORDA) System which is built upon the SIGMET Radar Video Processor (RVP8) and Radar Antenna and Control Processor (RCP8). The overarching goal of the first two new science algorithms is to improve data quality by reducing range folding and velocity aliasing. After the successful deployment of the Sachidananda/Zrnic Phase Coding algorithm (SZ-2) which mitigates range folding, the ROC began the process to implement the Staggered Pulse Repetition Time (SPRT) algorithm developed at the National Severe Storms Laboratory (NSSL) to mitigate velocity aliasing. The initial SPRT efforts were two-fold. First, the ROC compared the NSSL SPRT algorithm to the already existing SIGMET RVP8 staggered PRT Major Mode, Dual-PRT Type-2 (DPT2). Second, the ROC analyzed the ground clutter filtering method for SPRT developed by NSSL scientists. This paper will present the results of the comparison between SIGMET DPT2 and NSSL SPRT algorithms and present the analysis of the NSSL ground clutter filtering method for SPRT. It will also provide the current status of the SPRT implementation on the WSR-88D.
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