Published April 21, 2019
| Published + Accepted Version
Journal Article
Open
The C-Band All-Sky Survey (C-BASS): digital backend for the northern survey
Abstract
The C-Band All-Sky Survey (C-BASS) is an all-sky full-polarization survey at a frequency of 5 GHz, designed to provide data complementary to the all-sky surveys of WMAP and Planck and future CMB B-mode polarization imaging surveys. We describe the design and performance of the digital backend used for the northern part of the survey. In particular, we describe the features that efficiently implement the demodulation and filtering required to suppress contaminating signals in the time-ordered data, and the capability for real-time correction of detector non-linearity and receiver balance.
Additional Information
© 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model) Accepted 2019 January 27. Received 2019 January 22; in original form 2018 November 12. We thank Martin Shepherd, David Hawkins, Russ Keeney, and Erik Leitch for advice and assistance with the design and construction of the backend. The work at the California Institute of Technology and Owens Valley Radio Observatory was supported by National Science Foundation (NSF) awards AST-0607857, AST-1010024, AST-1212217, and AST-1616227, and by NASA award NNX15AF06G. The work at Oxford was supported by funding from STFC, the Royal Society and the University of Oxford. CD acknowledges support from an ERC Grant no. 307209. OGK acknowledges the support of a Dorothy Hodgkin Award in funding his studies while a student at Oxford, and the support of a W.M. Keck Institute for Space Studies Postdoctoral Fellowship at Caltech. This work formed part of MAS's PhD thesis (Stevenson 2013).Attached Files
Published - stz313.pdf
Accepted Version - 1811.06124.pdf
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1811.06124.pdf
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Additional details
- Eprint ID
- 93390
- Resolver ID
- CaltechAUTHORS:20190301-092706950
- AST-0607857
- NSF
- AST-1010024
- NSF
- AST-1212217
- NSF
- AST-1616227
- NSF
- NNX15AF06G
- NASA
- Science and Technology Facilities Council (STFC)
- Royal Society
- University of Oxford
- 307209
- European Research Council (ERC)
- Keck Institute for Space Studies (KISS)
- Created
-
2019-03-01Created from EPrint's datestamp field
- Updated
-
2021-11-16Created from EPrint's last_modified field
- Caltech groups
- Keck Institute for Space Studies