Author:
Chennamangalam Jayanth,Scott Simon,Jones Glenn,Chen Hong,Ford John,Kepley Amanda,Lorimer D. R.,Nie Jun,Prestage Richard,Roshi D. Anish,Wagner Mark,Werthimer Dan
Abstract
AbstractThe graphics processing unit has become an integral part of astronomical instrumentation, enabling high-performance online data reduction and accelerated online signal processing. In this paper, we describe a wide-band reconfigurable spectrometer built using an off-the-shelf graphics processing unit card. This spectrometer, when configured as a polyphase filter bank, supports a dual-polarisation bandwidth of up to 1.1 GHz (or a single-polarisation bandwidth of up to 2.2 GHz) on the latest generation of graphics processing units. On the other hand, when configured as a direct fast Fourier transform, the spectrometer supports a dual-polarisation bandwidth of up to 1.4 GHz (or a single-polarisation bandwidth of up to 2.8 GHz).
Publisher
Cambridge University Press (CUP)
Subject
Space and Planetary Science,Astronomy and Astrophysics
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