Sökning: "time-delay estimation"

Visar resultat 1 - 5 av 14 uppsatser innehållade orden time-delay estimation.

  1. 1. Estimation of respiratory frequency from Heart Rate Variability

    Master-uppsats, Lunds universitet/Matematisk statistik

    Författare :Daniel Ågärd; [2023]
    Nyckelord :time-frequency analysis; multitaper spectrogram; Optimization; signal processing; heart rate variability; Mathematics and Statistics;

    Sammanfattning : In this master's thesis the ability to estimate the respiratory frequency from heart rate variability measurement is analyzed. The goal was to implement a solution that is easily transferable to real time. LÄS MER

  3. 2. Extraction of Loudspeaker- and room impulse responses under overlapping conditions

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Signaler och system

    Författare :Felix Gustafsson; [2022]
    Nyckelord :Signal processing; Optimization; Acoustics; Dereverberation; Sparse deconvolution; Multipath propagation;

    Sammanfattning : A loudspeaker is often considered to be a Linear Time Invariant (LTI) system, which can be completely categorized by its impulse response. What sets loudspeakers apart from other LTI-systems is the acoustical aspect including echoes, which makes it a lot harder to take accurate noise free measurements compared to other LTI-systems such as a simple RC circuit. LÄS MER

  4. 3. Time Synchronization of TDOA Sensors Using a Local Reference Signal

    Master-uppsats, Linköpings universitet/Kommunikationssystem

    Författare :Alfred Hult; [2020]
    Nyckelord :TDOA; synchronization; sensor network; correlation; time-delay estimation; estimation; UAV; GPS; timing signal;

    Sammanfattning : Synchronization of distributed time difference of arrival (TDOA) sensor networks can be performed using reference signals from GPS satellites. This method provides high accuracy, but is vulnerable to jamming, and is not reliable enough to be used in military applications. LÄS MER

  5. 4. Evaluation of models for process time delay estimation in a pulp bleaching plant

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Marcus Dahlbäck; [2020]
    Nyckelord :;

    Sammanfattning : The chemical processes used to manufacture pulp are always in development to cope with increasing environmental demands and competition. With a deeper understanding of the processes, the pulping industry can become both more profitable and effective at keeping an even and good quality of pulp, while reducing emissions. LÄS MER

  7. 5. AN ADAPTIVE CONTROL SYSTEM BASED ON PID, I2PD AND RLS, A SIMULATED DESIGN FOR UAVS

    Master-uppsats, Mälardalens högskola/Akademin för innovation, design och teknik

    Författare :Johan Gärtner; Philip Johansson; [2017]
    Nyckelord :RLS; PID Controller; UAV; quadrotor; adaptive control; I2PD; simulation;

    Sammanfattning : During this master thesis an adaptive control system for angular velocity was developed. The approach focuses on radio controlled quadrotors and thereby targets a computational efficient solution. The adaptation is divided into two steps. LÄS MER