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Paper: The COBRA/CARMA Correlator Data Processing System
Volume: 295, Astronomical Data Analysis Software and Systems XII
Page: 265
Authors: Scott, S. L.; Hobbs, R.; Beard, A.; Daniel, P.; Mehringer, D.; Plante, R.; Kraybill, J. C.; Wright, M.; Leitch, E.; Amarnath, N. S.; Pound, M. W.; Rauch, K. P.; Teuben, P. J.
Abstract: The Caltech Owens Valley Broadband Reprogrammable Array (COBRA) digital correlator is an FPGA based spectrometer with 16 MHz resolution and 4 GHz total bandwidth that will be commissioned on the Caltech Millimeter-wave Array in November, 2002. The Combined Array for Research in Millimeter-Wave Astronomy (CARMA) will join the Caltech array with the BIMA array on a new high elevation site in 2005. The COBRA hardware and computing architecture described here will be the basis for the two CARMA correlators. The COBRA architecture uses nine computers to provide the hardware interface and initial processing. Data is transported using CORBA to a tenth machine that implements the data processing pipeline as multiple processes passing data through shared memory.
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