Reference receiver enabled digital cancellation of nonlinear out-of-band blocker distortion in wideband receivers

Jaakko Marttila, Markus Allen, Marko Kosunen, Kari Stadius, Jussi Ryynänen, Mikko Valkama

    Tutkimustuotos: KonferenssiartikkeliScientificvertaisarvioitu

    Abstrakti

    This paper proposes digital cancellation of nonlinear distortion originating from out-of-band blocking carriers and induced by the analog front-end nonlinearities in direct-conversion receivers (RXs). The cancellation is enabled by employing an additional reference RX for capturing these blockers. In addition, cancellation of mirror-frequency interference is targeted. The feed-forward cancellation of nonlinear distortion is blindly adaptive without any a priori information of the received signal or the nonlinearity characteristics of the RX. The performance of this approach is demonstrated with laboratory RF measurements using state-of-the-art base-station hardware. With the distortion cancellation, blocker tolerance of the RX is improved by 7-8 dB.
    AlkuperäiskieliEnglanti
    OtsikkoProceedings of IEEE Global Conference on Signal and Information Processing
    JulkaisupaikkaWashington, DC
    KustantajaIEEE
    Sivut684-688
    ISBN (elektroninen)978-1-5090-4544-0
    DOI - pysyväislinkit
    TilaJulkaistu - 7 jouluk. 2016
    OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
    TapahtumaIEEE GLOBAL CONFERENCE ON SIGNAL AND INFORMATION PROCESSING -
    Kesto: 1 tammik. 1900 → …

    Conference

    ConferenceIEEE GLOBAL CONFERENCE ON SIGNAL AND INFORMATION PROCESSING
    Ajanjakso1/01/00 → …

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