Publications (7)
Commensal, Multi-user Observations with an Ethernet-based Jansky Very Large Array
Jack Hickish, Tony Beasley, Geoff Bower +12
Over the last decade, the continuing decline in the cost of digital computing technology has brought about a dramatic transformation in how digital instrumentation for radio astron…
A Scalable Correlator Architecture Based on Modular FPGA Hardware, Reuseable Gateware, and Data Packetization
Aaron Parsons, Donald Backer, Henry Chen +9
A new generation of radio telescopes is achieving unprecedented levels of sensitivity and resolution, as well as increased agility and field-of-view, by employing high-performance…
A Decade of Developing Radio-Astronomy Instrumentation using CASPER Open-Source Technology
Jack Hickish, Zuhra Abdurashidova, Zaki Ali +33
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 n…
Opening the 21cm EoR Window: Measurements of Foreground Isolation with PAPER
Jonathan C. Pober, Aaron R. Parsons, James E. Aguirre +13
We present new observations with the Precision Array for Probing the Epoch of Reionization (PAPER) with the aim of measuring the properties of foreground emission for 21cm Epoch of…
New Limits on Polarized Power Spectra at 126 and 164 MHz: Relevance to Epoch of Reionization Measurements
David Moore, James E. Aguirre, Saul Kohn +15
Polarized foreground emission is a potential contaminant of attempts to measure the fluctuation power spectrum of highly redshifted 21 cm HI emission from the epoch of reionization…
Digital Instrumentation for the Radio Astronomy Community
Aaron Parsons, Dan Werthimer, Donald Backer +21
Time-to-science is an important figure of merit for digital instrumentation serving the astronomical community. A digital signal processing (DSP) community is forming that uses sha…
Imaging on PAPER: Centaurus A at 148 MHz
Irina I. Stefan, Chris L. Carilli, David A. Green +15
We present observations taken with the Precision Array for Probing the Epoch of Reionization (PAPER) of the Centaurus A field in the frequency range 114 to 188 MHz. The resulting i…