A GPU-Based Wide-Band Radio Spectrometer

Chennamangalam, Jayanth; Scott, Stanley; Jones, Glenn; Chen, Hong; Ford, John; Kepley, Amanda A.; Lorimer, D. R.; Nie, Jun; Prestage, Richard; Roshi, D. Anish; Wagner, Mark; Werthimer, Dan

doi:10.1017/pasa.2014.43

Cited by 21 publications

(14 citation statements)

References 9 publications

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“…CASPER hardware included the once popular Reconfigurable Open Architecture Computing Hardware (ROACH) series of standalone FPGA processing boards. CASPER powered spectrometers include the Allen Telescope Array Fly's Eye radio transient search, 155 the Green Bank Ultimate Pulsar Processing Instrument, 156 the workhorse back-end system for the GBT, 157 the versatile GBT astronomical spectrometer (VEGAS), and many others. CASPER-based correlators and beamformers have been used for the Precision Array for Probing the Epoch of Reionization (PAPER), 158 Hydrogen Epoch of Reionization Array (HERA), 159 Large Aperture Experiment to Detect the Dark Ages (LEDA), 160 and the Focal L-band Array for the GBT (FLAG) 161 discussed below, as well as the Smithsonian Astrophysical Observatory's submillimeter array (SMA) Wideband Astronomical ROACH2 Machine (SWARM), 162 the Breakthrough Listen, 163 and other projects to search for extratrerrestrial life.…”

Section: Radio Wave Digital Signal Processingmentioning

confidence: 99%

Enabling discoveries: a review of 30 years of advanced technologies and instrumentation at the National Science Foundation

Kurczynski

Milojević

2020

J. Astron. Telesc. Instrum. Syst.

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Over its more than 30-year history, the Advanced Technologies and Instrumentation (ATI) program has provided grants to support technology development and instrumentation for ground-based astronomy. Through a combination of automated literature assessment and indepth literature review, we present a survey of ATI-funded research and its impact on astronomy and society. Award acknowledgment and literature citation statistics for ATI are comparable to a comparison astronomy grant program that does not support technology development. Citation statistics for both NSF-funded programs exceed those of the general astronomical literature. Numerous examples demonstrate the significant, long-term impact of ATI-supported research in astronomy. As part of this impact, ATI grants have provided many early career researchers the opportunity to gain critical professional experience. However, technology development unfolds over a time period that is longer than an individual grant. A longitudinal perspective shows that investments in technology and instrumentation have led to extraordinary scientific progress. © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Section: Radio Wave Digital Signal Processingmentioning

confidence: 99%

Enabling discoveries: a review of 30 years of advanced technologies and instrumentation at the National Science Foundation

Kurczynski

Milojević

2020

J. Astron. Telesc. Instrum. Syst.

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“…Green Bank's current facility instrument -the VEGAS spectrometer (Chennamangalam et al, 2014) -was built with reused GUPPI software, reused CASPER gateware libraries, and custom gateware blocks that were subsequently added to the CASPER libraries for others to use. Calibration algorithms for the VEGAS high-speed ADCs, a key component of the system, were gleaned from other CASPER users (Patel et al, 2014).…”

Section: Design Re-usementioning

confidence: 99%

A Decade of Developing Radio-Astronomy Instrumentation using CASPER Open-Source Technology

Hickish

Abdurashidova

Ali

et al. 2016

J. Astron. Instrum.

Self Cite

133

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Received (to be inserted by publisher); Revised (to be inserted by publisher); Accepted (to be inserted by publisher);The Collaboration for Astronomy Signal Processing and Electronics Research (CASPER) has been working for a decade to reduce the time and cost of designing, building and deploying new digital radio-astronomy instruments.Today, CASPER open-source technology powers over 45 scientific instruments worldwide, and is used by scientists and engineers at dozens of academic institutions. In this paper we catalog the current offerings of the CASPER collaboration, and instruments past and present built by CASPER users and developers. We describe the ongoing state of software development, as CASPER looks to support a broader range of programming environments and hardware and ensure compatibility with the latest vendor tools.

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“…Packetized DSP systems are becoming increasingly common within radio astronomy, see for example the Precision Array for Probing the Epoch of Reionization (PAPER) correlator (Parsons et al, 2010), the Large-Aperture Experiment for detecting the Dark Ages (LEDA) correlator (Kocz et al, 2015), and VEGAS, the Versatile Greenbank Astronomical Spectrometer (Roshi et al, 2011;Chennamangalam et al, 2014). The inclusion of a switch greatly increases the flexibility of the system as data can be dynamically routed between nodes.…”

Section: Hipsr Packetized Architecturementioning

confidence: 99%

HIPSR: A Digital Signal Processor for the Parkes 21-cm Multibeam Receiver

Price

Bailes

Carretti

et al. 2016

J. Astron. Instrum.

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HIPSR (HI-Pulsar) is a digital signal processing system for the Parkes 21-cm Multibeam Receiver that provides larger instantaneous bandwidth, increased dynamic range, and more signal processing power than the previous systems in use at Parkes. The additional computational capacity enables finer spectral resolution in wideband HI observations and real-time detection of Fast Radio Bursts during pulsar surveys. HIPSR uses a heterogeneous architecture, consisting of FPGA-based signal processing boards connected via high-speed Ethernet to high performance compute nodes. Low-level signal processing is conducted on the FPGA-based boards, and more complex signal processing routines are conducted on the GPU-based compute nodes. The development of HIPSR was driven by two main science goals: to provide large bandwidth, high-resolution spectra suitable for 21-cm stacking and intensity mapping experiments; and to upgrade the Berkeley-Parkes-Swinburne Recorder (BPSR), the signal processing system used for the High Time Resolution Universe (HTRU) Survey and the Survey for Pulsars and Extragalactic Radio Bursts (SUPERB).

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A GPU-Based Wide-Band Radio Spectrometer

Cited by 21 publications

References 9 publications

Enabling discoveries: a review of 30 years of advanced technologies and instrumentation at the National Science Foundation

Enabling discoveries: a review of 30 years of advanced technologies and instrumentation at the National Science Foundation

A Decade of Developing Radio-Astronomy Instrumentation using CASPER Open-Source Technology

HIPSR: A Digital Signal Processor for the Parkes 21-cm Multibeam Receiver

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