Title :
Advanced multi-beam spectrometer for the Green Bank Telescope
Author :
Roshi, D. Anish ; Bloss, Marty ; Brandt, Patrick ; Bussa, Srikanth ; Chen, Hong ; Demorest, Paul ; Desvignes, Gregory ; Filiba, Terry ; Fisher, Richard J. ; Ford, John ; Frayer, David ; Garwood, Robert ; Gowda, Suraj ; Jones, Glenn ; Mallard, Billy ; Mast
Author_Institution :
Nat. Radio Astron. Obs. (NRAO), Green Bank, WV, USA
Abstract :
A new spectrometer for the Green Bank Telescope (GBT) is being built jointly by the NRAO and the CASPER, University of California, Berkeley. The spectrometer uses 8 bit ADCs and will be capable of processing up to 1.25 GHz bandwidth from 8 dual polarized beams. This mode will be used to process data from focal plane arrays. The spectrometer supports observing mode with 8 tunable digital sub-bands within the 1.25 GHz bandwidth. The spectrometer can also be configured to process a bandwidth of up to 10 GHz with 64 tunable sub-bands from a dual polarized beam. The vastly enhanced backend capabilities will support several new science projects with the GBT.
Keywords :
focal planes; radiotelescopes; spectrometers; ADC; Green Bank Telescope; NRAO; advanced multi-beam spectrometer; focal plane arrays; frequency 1.25 GHz; frequency 10 GHz; polarized beams; Bandwidth; Calibration; Educational institutions; Observatories; Pipelines; Radio astronomy; Switches;
Conference_Titel :
General Assembly and Scientific Symposium, 2011 XXXth URSI
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-5117-3
DOI :
10.1109/URSIGASS.2011.6051280
