Sökning: "WLS estimator"

Hittade 4 uppsatser innehållade orden WLS estimator.

  1. 1. A Study Of Using Communication Signals As Sonar Pulses In Underwater Sensor Systems

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

    Författare :Erica Svensson; [2022]
    Nyckelord :Sonar; Communication signal; Beamforming; Underwater sensor system; WLS estimator; Detection algorithm; Position estimation;

    Sammanfattning : Underwater communication within underwater sensor network is crucial for surveillance of coast and ocean areas. The aim of this report was to examine whether it is realistic to use the communication signal which is sent from one node to another as a sonar pulse, and in such case at what distances. LÄS MER

  3. 2. Mispricing of Climate Risk

    Magister-uppsats, Lunds universitet/Företagsekonomiska institutionen

    Författare :Lovisa Dahlquist; Lena Maria Tschanhenz; [2022]
    Nyckelord :Bloomberg GHG estimates; Risk premium for climate risk; ESG reporting; Sustainable investing; Stock market equilibrium; Business and Economics;

    Sammanfattning : Purpose: Study the relationship between stock returns and GHG emissions regarding a risk premium related to greenness. This by using GHG emissions estimated by Bloomberg rather than companies self-reported estimates. Methodology: The study conducts a time-invariant model by cross-sectional OLS regression to estimate the risk premium for greenness. LÄS MER

  4. 3. Centralized Versus Distributed State Estimation for Hybrid AC/DC Grid

    Master-uppsats, KTH/Industriell ekologi

    Författare :Viktor Briggner; Pontus Grahn; Linus Johansson; [2016]
    Nyckelord :;

    Sammanfattning : State estimation enables for values throughout a power transmission grid to be known with a higher level of certainty. New technologies for bulk power transmission and power grid measuring enables for new possibilities in the energy sector and it is required that state estimation algorithms are developed to adapt to these new technologies. LÄS MER

  5. 4. A Matlab Toolbox for fMRI Data Analysis: Detection, Estimation and Brain Connectivity

    Master-uppsats, Datorseende

    Författare :Kiran Kumar Budde; [2012]
    Nyckelord :fMRI; functional Magnetic Resonance Imaging; Detection of activated regions; Estimation of hemodynamic response; Brain connectivity; Bayesian estimator; RBF; NARX; Granger causality.;

    Sammanfattning : Functional Magnetic Resonance Imaging (fMRI) is one of the best techniques for neuroimaging and has revolutionized the way to understand the brain functions. It measures the changes in the blood oxygen level-dependent (BOLD) signal which is related to the neuronal activity. LÄS MER