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Paper detail

A GPU-Based Wide-Band Radio Spectrometer

The Graphics Processing Unit (GPU) 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 GPU card. This spectrometer, when configured as a polyphase filter bank (PFB), supports a dual-polarization bandwidth of up to 1.1 GHz (or a single-polarization bandwidth of up to 2.2 GHz) on the latest generation of GPUs. On the other hand, when configured as a direct FFT, the spectrometer supports a dual-polarization bandwidth of up to 1.4 GHz (or a single-polarization bandwidth of up to 2.8 GHz).

preprint2014arXivOpen access
Jayanth ChennamangalamSimon ScottGlenn JonesHong ChenJohn FordAmanda KepleyD. R. LorimerJun NieRichard PrestageD. Anish RoshiMark WagnerDan Werthimer
astro-ph.IM
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Jayanth ChennamangalamSimon ScottGlenn JonesHong ChenJohn FordAmanda KepleyD. R. LorimerJun NieRichard PrestageD. Anish RoshiMark WagnerDan Werthimer

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