Sökning: "Sigma-Delta"

Visar resultat 1 - 5 av 32 uppsatser innehållade ordet Sigma-Delta.

  1. 1. Simulering av tidskontinuerliga inkrementella sigma-delta A/D-omvandlare : Med hjälp av MATLAB/Simulink

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för fysik och elektroteknik (IFE)

    Författare :Adrian Christiansen; [2022]
    Nyckelord :Sigma-delta; A D-omvandlare; Simulink;

    Sammanfattning : Detta arbete inleds med en översiktlig teoretiskt bakgrund om analog till digital-omvandlare(A/D-omvandlare). Vartefter arbetet beskriver två kända metoder för att transformera återkopplingsloopar konstruerade i den tidsdiskreta z-domänen till den tidskontinuerliga Laplace-domänen. LÄS MER

  3. 2. 16 GS/s Continuous-Time ΣΔ Modulator in a 22 nm SOI Process : a Simulation and Feasibility Study

    Master-uppsats, Linköpings universitet/Tekniska fakulteten; Linköpings universitet/Elektroniska Kretsar och System

    Författare :Eric Öberg; Gustav Kindeskog; [2018]
    Nyckelord :sigma delta modulator;

    Sammanfattning : With a reference specification model in terms of 8 GS/s Sigma Delta Modulator in a 28 nm CMOS process consuming 890 mW, the purpose with this thesis is to construct a similar and simpler model but with higher specification demands. In a 22 nm SOI process with an input signal bandwidth of 500 MHz sampled at 16 GS/s with a power consumption below 2 W, the objective is to design a Continuous-Time Sigma Delta Modulator with verified simulated functionality on a transistor level basis. LÄS MER

  4. 3. Design and Implementation of Sigma-Delta Converter : in Oversampling frequency

    Master-uppsats, Linnéuniversitetet/Institutionen för fysik och elektroteknik (IFE)

    Författare :Yaobin Pan; Xizhuo Li; [2016]
    Nyckelord :Sigma-Delta converters; Oversampling; Analog-Digital converters;

    Sammanfattning : Nowadays, Sigma-Delta analog-to-digital converters have been widely used in the technology of analog-to-digital conversion. It depends on the merits that the approach of Sigma-Delta has. The signal converted by oversampling is precise and well-suited in signal processing systems. LÄS MER

  5. 4. Distortion Cancellation in Time Interleaved ADCs

    Master-uppsats, Linköpings universitet/Elektroniska Kretsar och System

    Författare :Naga Thejus Sambasivan Mruthyunjaya; [2015]
    Nyckelord :Time-Interleaved ADC; Post correction; Blind calibration; Harmonics cancellation; Mismatch analysis; Linearisation;

    Sammanfattning : Time-Interleaved Analog to Digital Converters (TI ADC) consist of several individual sub-converters operating at a lower sampling rate, working in parallel, and in a circular loop. Thereby, they are increasing the sampling rate without compromising on the resolution during conversion, at high sampling rates. LÄS MER

  7. 5. Interferometer Design for Attosecond Experiments

    Kandidat-uppsats, Lunds universitet/Fysiska institutionen

    Författare :Simon Ek; [2015]
    Nyckelord :FRED; attophysics; atomic physics; stability; simulations; MATLAB; interferometer design; interferometers; error propagation; Physics and Astronomy;

    Sammanfattning : Resolving fast events, such as electron dynamics, requires short light pulses. To this date the shortest available light pulses are created using High-order Harmonic Generation (HHG) and have a duration of a few hundred attoseconds (1 as = $10^{-18}$ s). LÄS MER