Digital full-band linearization of wideband direct-conversion receiver for radar and communications applications

Markus Allen, Jaakko Marttila, Mikko Valkama, Simran Singh, Michael Epp, Wolfgang Schlecker

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

    11 Citations (Scopus)
    112 Downloads (Pure)

    Abstract

    This paper proposes a fully digital post-processing solution for cancelling nonlinear distortion and mirror-frequency interference in wideband direct-conversion receivers (DCRs). Favorable cost, integrability, and power efficiency have made DCRs a popular choice in communication systems. It is also an emerging trend in radar systems since digital post-processing enables sufficient performance. The proposed method cancels the most essential distortion adaptively during normal receiver operation without any prior information. Improved cancellation performance compared to the state-of-the-art is achieved considering inband and neighboring band distortion induced by the strong received signals. This is verified and demonstrated with extensive simulations and true RF hardware measurements.

    Original languageEnglish
    Title of host publication2015 49th Asilomar Conference on Signals, Systems and Computers
    Pages1361-1368
    Number of pages8
    DOIs
    Publication statusPublished - 26 Feb 2016
    Publication typeA4 Article in a conference publication
    EventAsilomar Conference on Signals, Systems and Computers -
    Duration: 1 Jan 1900 → …

    Publication series

    Name
    ISSN (Electronic)1058-6393

    Conference

    ConferenceAsilomar Conference on Signals, Systems and Computers
    Period1/01/00 → …

    Keywords

    • Direct-conversion receiver
    • interference cancellation
    • nonlinear distortion
    • nonlinearity modeling
    • radar

    Publication forum classification

    • Publication forum level 1

    ASJC Scopus subject areas

    • Computer Networks and Communications
    • Signal Processing

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