83rd Annual

Monday, 10 February 2003: 9:30 AM
NEXRAD Product Improvement—Status of WSR-88D Open Radar Data Acquisition (ORDA) Program
Gregory S. Cate, NOAA/NWS, Norman, OK; and R. W. Hall and M. L. Terry
Poster PDF (402.2 kB)
The National Weather Service Office of Science and Technology (OS&T) will present an overview and status of the NEXRAD Product Improvement (NPI) Program Open Radar Data Acquisition (ORDA) project. RSIS is the contractor responsible for development, production and deployment of the Open RDA. Based on experience gained from the National Severe Storms Laboratory's ORDA proof-of-concept design and analysis conducted by RSIS, the NWS Radar Operations Center, and NWS OS&T, RSIS selected the Sigmet Digital Receiver/Signal Processor (RVP8) and the Antenna/Radar Controller (RCP08) to replace functionally equivalent components of the current legacy RDA. Sigmet uses PCI-based hardware running a Linux operating system. The Sigmet design affords implementation of signal processing enhancements by way of application programming interfaces, allowing integration of developer software via a well-defined interface to the Sigmet software. The human-computer-interface (HCI) will be implemented using Java-based applications, expediting both the local and remote HCI solutions. During late June-early July 2002 the project team integrated Sigmet RVP7/RCP02 units (precursors to the RVP08 and RCP08) into NEXRAD test bed facilities to demonstrate transmitter control and implementation of the receiver and DAU interfaces. The NWS Office of Science and Technology Program Management and project engineering staff are collocated with the RSIS project team in Norman, Oklahoma, which facilitates expeditious and informed program direction. Production deployment is targeted to begin Summer 2004.

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