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Proceedings Paper

Launching GUPPI: the Green Bank Ultimate Pulsar Processing Instrument
Author(s): Ron DuPlain; Scott Ransom; Paul Demorest; Patrick Brandt; John Ford; Amy L. Shelton
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Paper Abstract

The National Radio Astronomy Observatory (NRAO) is launching the Green Bank Ultimate Pulsar Processing Instrument (GUPPI), a prototype flexible digital signal processor designed for pulsar observations with the Robert C. Byrd Green Bank Telescope (GBT). GUPPI uses field programmable gate array (FPGA) hardware and design tools developed by the Center for Astronomy Signal Processing and Electronics Research (CASPER) at the University of California, Berkeley. The NRAO has been concurrently developing GUPPI software and hardware using minimal software resources. The software handles instrument monitor and control, data acquisition, and hardware interfacing. GUPPI is currently an expert-only spectrometer, but supports future integration with the full GBT production system. The NRAO was able to take advantage of the unique flexibility of the CASPER FPGA hardware platform, develop hardware and software in parallel, and build a suite of software tools for monitoring, controlling, and acquiring data with a new instrument over a short timeline of just a few months. The NRAO interacts regularly with CASPER and its users, and GUPPI stands as an example of what reconfigurable computing and open-source development can do for radio astronomy. GUPPI is modular for portability, and the NRAO provides the results of development as an open-source resource.

Paper Details

Date Published: 15 July 2008
PDF: 10 pages
Proc. SPIE 7019, Advanced Software and Control for Astronomy II, 70191D (15 July 2008); doi: 10.1117/12.790003
Show Author Affiliations
Ron DuPlain, National Radio Astronomy Observatory (United States)
Scott Ransom, National Radio Astronomy Observatory (United States)
Paul Demorest, National Radio Astronomy Observatory (United States)
Patrick Brandt, National Radio Astronomy Observatory (United States)
John Ford, National Radio Astronomy Observatory (United States)
Amy L. Shelton, National Radio Astronomy Observatory (United States)


Published in SPIE Proceedings Vol. 7019:
Advanced Software and Control for Astronomy II
Alan Bridger; Nicole M. Radziwill, Editor(s)

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