The linearity response of the Planck-LFI flight model receivers

A. Mennella, F. Villa, L. Terenzi, F. Cuttaia, P. Battaglia, M. Bersanelli, R.C. Butler, O. D`Arcangelo, E. Artal, R. Davis, M. Frailis, C. Franceschet, S. Galeotta, A. Gregorio, N. Hughes, P. Jukkala, D. Kettle, V-H. Kilpiä, M. Laaninen, P.M. LapollaR. Leonardi, P. Leutenegger, S. Lowe, N. Mandolesi, M. Maris, P. Meinhold, L. Mendes, M. Miccolis, G. Morgante, N. Roddis, M. Sandri, R. Silvestri, L. Stringhetti, M. Tomasi, Jussi Tuovinen, L. Valenziano, A. Zacchei, Jussi Varis, A. Wilkinson, A. Zacchei

    Research output: Contribution to journalArticleScientificpeer-review

    13 Citations (Scopus)


    In this paper we discuss the linearity response of the Planck-LFI receivers, with particular reference to signal compression measured on the 30 and 44 GHz channels. In the article we discuss the various sources of compression and present a model that accurately describes data measured during tests performed with individual radiomeric chains. After discussing test results we present the best parameter set representing the receiver response and discuss the impact of non linearity on in-flight calibration, which is shown to be negligible.
    Original languageEnglish
    Article numberT12011
    JournalJournal of Instrumentation
    Publication statusPublished - 2009
    MoE publication typeA1 Journal article-refereed


    • Systematic effects
    • Space instrumentation
    • Microwave radiometers
    • Instruments for CMB observations


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