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

M. A. Stevenson, T. J. Pearson, Michael E. Jones, C. J. Copley, C. Dickinson, J. J. John, O. G. King, S. J.C. Muchovej, Angela C. Taylor

    Research output: Contribution to journalArticlepeer-review

    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.

    Original languageEnglish
    Pages (from-to)5377-5388
    Number of pages12
    JournalMonthly Notices of the Royal Astronomical Society
    Volume484
    Issue number4
    DOIs
    Publication statusPublished - 21 Apr 2019

    Keywords

    • instrumentation: polarimeters
    • methods: data analysis
    • radio continuum: general

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