Sökning: "Jessica Chani Cahuana"

Hittade 2 avhandlingar innehållade orden Jessica Chani Cahuana.

  1. 1. Digital Compensation Techniques for Power Amplifiers in Radio Transmitters

    Detta är en avhandling från Chalmers University of Technology

    Författare :Jessica Chani Cahuana; Chalmers tekniska högskola.; Chalmers University of Technology.; [2017]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Volterra series; nonlinear system; digital predistortion; power amplifier; linearization; iterative learning control;

    Sammanfattning : Power amplifiers (PAs) are vital components in radio transmitters because they are responsible to amplify the low power communication signals to power levels suitable for transmission. Important requirements of PAs are high efficiency and linearity. Unfortunately, there is a tradeoff between efficiency and linearity. LÄS MER

  2. 2. Digital Predistortion for the Linearization of Power Amplifiers

    Detta är en avhandling från Chalmers University of Technology

    Författare :Jessica Chani Cahuana; Chalmers tekniska högskola.; Chalmers University of Technology.; [2015]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; behavioral model; digital predistortion; power amplifier; nonlinear; efficiency; Volterra series; Doherty power amplifier;

    Sammanfattning : High efficiency and linearity are indispensable requirements of power amplifiers. Unfortunately they are difficult to obtain simultaneously, since high efficiency PAs are nonlinear and linear PAs may have low efficiency. LÄS MER