Nonlinear phenomena in beamforming

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


    In this paper we present a summary of nonlinear system level problems in beamforming. The paper summarizes first the nonideal phenomena in power amplifiers, mixers, and oscillators. In digital predistortion inversion of the nonlinearity is needed. Not all linear and nonlinear systems are invertible or they may have only a preinverse or postinverse. Commutation is needed in indirect learning architectures for predistortion. The spatial and temporal order of compensation of different distortions is discussed. Some numerical results are also included.
    Original languageEnglish
    Title of host publicationProceedings of the XXIXth URSI General Assembly in Chicago
    PublisherInternational Union of Radio Science (URSI)
    Number of pages4
    Publication statusPublished - 2008
    MoE publication typeA4 Article in a conference publication
    EventXXIXth URSI General Assembly 2008 - Chicago, United States
    Duration: 7 Aug 200816 Aug 2008


    ConferenceXXIXth URSI General Assembly 2008
    Country/TerritoryUnited States


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