Publications associated with C-Band All Sky Survey

The C-Band All-Sky Survey (C-BASS): digital backend for the northern survey

Monthly Notices of the Royal Astronomical Society Oxford University Press 484 (2019) 5377-5388

MA Stevenson, TJ Pearson, M Jones, CJ Copley, C Dickinson, JJ John, OG King, SJC Muchovej, A Taylor

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.

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