Sökning: "Adaptive Loop Filter"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden Adaptive Loop Filter.

  1. 1. A Digital Phase-Locked Loop for Frequency Synthesis using an Adaptive Pulse Shrinking TDC

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Viktor Lewin; [2023]
    Nyckelord :Phase-locked loop; PLL; DPLL; Frequency Synthesis; TDC; PFD; Technology and Engineering;

    Sammanfattning : This thesis investigates a new type of Phase-Locked Loop (PLL) architecture which combines a phase/frequency detector (PFD) and a digital loop filter. The quantization is done by a time-to-digital converter which continuously shrinks the pulse coming from the PFD and registers how far it propagates. LÄS MER

  3. 2. Stabilization of Manually Controlled Sight-Systems for Tracking Tasks

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Steffany Reyna Marquez; [2019]
    Nyckelord :;

    Sammanfattning : In this thesis, we analyze the influence of an operator during manual control tasks in order toimprove her tracking ability. The operator sends control commands to a sight system so that shecan, among other things, track a target. LÄS MER

  4. 3. Investigating the Adaptive Loop Filter in Next Generation Video Coding

    Master-uppsats, KTH/Skolan för elektro- och systemteknik (EES)

    Författare :Alfonso De La Rocha Gomes-Arevalillo; [2017]
    Nyckelord :Joint Exploration Model; JEM; Adaptive Loop Filter; variance-based adaptive quantization; video compression; video coding standards;

    Sammanfattning : Current trends on video technologies and services are demanding higher bit rates, highervideo resolutions and better video qualities. This issue results in the need of a new generationof video coding techniques to increase the quality and compression rates of previous standards. LÄS MER

  5. 4. Estimation and Compensation of Load-Dependent Position Error in a Hybrid Stepper Motor

    Master-uppsats, Linköpings universitet/Reglerteknik

    Författare :Anton Ronquist; Birger Winroth; [2016]
    Nyckelord :Adaptive Notch Filter; Back-EMF; Electric Motor Position Control; Error Modelling; Field-Oriented Control; Hybrid Stepper Motor; Kalman Filter; Load Angle; Magnetic Rotary Position Sensor; Sensorless Control; Sliding Window Discrete Fourier Transform; Stall Detection and Prediction.;

    Sammanfattning : Hybrid stepper motors are a common type of electric motor used throughout industry thanks to its low-cost, high torque at low speed and open loop positioning capabilities. However, a closed loop control is often required for industrial applications with high precision requirements. LÄS MER

  7. 5. Modeling, Estimation and Attitude Control of an Octorotor Using PID and L1 Adaptive Control Techniques

    Master-uppsats, Linköpings universitet/Reglerteknik; Linköpings universitet/Tekniska högskolan

    Författare :Kristoffer Bergman; Jonatan Ekström; [2014]
    Nyckelord :Multirotor; Octorotor; VTOL; UAV; Modeling; Estimation; Attitude control; PID; L1 adaptive control;

    Sammanfattning : A multirotor is a type of aerial vehicle that has attracted a lot of attention in recent years. Multirotors have found applications in a variety of different fields and they are used by scientists and researchers, commercial UAV companies and radio control enthusiasts alike. LÄS MER