Experiences with the design and construction of wideband spectral line and pulsar instrumentation with CASPER hardware and software: The Digital Backend System

Author

Ford, J. ; Bloss, Marty ; Brandt, Jim ; Creager, Ramon ; Demorest, Paul ; Jones, Glenn ; Jintao Luo ; McCullough, Randy ; Prestage, Richard ; Ransom, Scott ; Ray, Jason ; Watts, Galen ; Whitehead, Mark

Author_Institution

Nat. Radio Astron. Obs., Green Bank, WV, USA

fYear

2014

fDate

8-11 Jan. 2014

Firstpage

1

Lastpage

1

Abstract

NRAO recently designed and built a universal backend system for the Shanghai Astronomical Observatory´s (SHAO) 65 meter radio telescope which was constructed near the city of Shanghai, China. The machine, called the Digital Backend System (DIBAS), was created from the design of the VErsatile GBT Astronomical Spectrometer (VEGAS) by adding nine incoherent pulsar search modes and eight coherent dedispersion timing modes to complement the 29 VEGAS spectral line modes. Together these modes cover all of the anticipated science requirements for the 65 meter except for VLBI.

Keywords

astronomical spectra; astronomical techniques; pulsars; radiotelescopes; CASPER hardware; CASPER software; NRAO; Shanghai Astronomical Observatory; VEGAS spectral line modes; VLBI; Versatile GBT astronomical spectrometer; digital backend system; pulsar instrumentation; radio telescope; wideband spectral line; Bandwidth; Field programmable gate arrays; Hardware; Instruments; Observatories; Radio astronomy; Software;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Science Meeting (USNC-URSI NRSM), 2014 United States National Committee of URSI National

Conference_Location

Boulder, CO

Print_ISBN

978-1-4799-3119-4

Type

conf

DOI

10.1109/USNC-URSI-NRSM.2014.6928112

Filename

6928112