Sökning: "Toppfaktor"

Hittade 3 uppsatser innehållade ordet Toppfaktor.

  1. 1. Relating Process Data to Product Quality in Transmission Manufacturing

    Master-uppsats, KTH/Industriell produktion

    Författare :Claudia Tensi; [2021]
    Nyckelord :;

    Sammanfattning : Research has shown that vibration produced by a machine tool provides useful information for the maintenance of its structural parts. Thus, the vibration signal should also give information about tool wear and, consequently, surface roughness of the machined workpieces. LÄS MER

  3. 2. Crest Factor Reduction using High Level Synthesis

    Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :Hassan Mahmood; [2017]
    Nyckelord :Peak to average power ratio; Crest factor; Peak cancellation crest factor reduction; High level synthesis; Design space exploration; Object oriented programming; SystemC; Skillnad mellan maximal effekt och medeleffekt; Toppfaktor; Algoritmen peak cancellation; Högnivåsyntes; SystemC; Undersökningen av designalternativ; Objektorienterad programmering;

    Sammanfattning : Modern wireless mobile communication technology has made noticeable improvements from the technologies in the past but is still plagued by poor power efficiency of power amplifiers found in today’s base stations. One of the factors that affect the power efficiency adversely comes from modern modulation techniques like orthogonal frequency division multiplexing which result in signals with high peak to average power ratio, also known as the crest factor. LÄS MER

  4. 3. An efficient Hardware implementation of the Peak Cancellation Crest Factor Reduction Algorithm

    Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :Matteo Bernini; [2016]
    Nyckelord :CFR; PC-CFR; PAPR Reduction; OFDM; CFR; PC-CFR; PAPR Reduction; OFDM;

    Sammanfattning : An important component of the cost of a radio base station comes from to the Power Amplifier driving the array of antennas. The cost can be split in Capital and Operational expenditure, due to the high design and realization costs and low energy efficiency of the Power Amplifier respectively. LÄS MER