Sökning: "State-Space models"

Visar resultat 1 - 5 av 50 uppsatser innehållade orden State-Space models.

  1. 1. Estimating Ambient Temperature using Internal Sensors and Thermal Modelling in Mobile Phones

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Institutionen för reglerteknik

    Författare :Isak Evaldsson; Henrik Paulcén; [2023]
    Nyckelord :Technology and Engineering;

    Sammanfattning : This thesis studies the possibility of estimating the ambient temperature around a mobile phone using its internal temperature sensors. The thesis aims to develop and evaluate ambient temperature models that use internal temperature sensors within the device and, from a manufacturer’s perspective, investigate if the models for ambient temperature can be enhanced by tailoring them to the internals of specific devices. LÄS MER

  3. 2. Formula Student Car Stability

    Kandidat-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Oliver Belfiore; [2023]
    Nyckelord :Racing; Car; Vehicle; dynamics; vehicle dynamics; Technology and Engineering;

    Sammanfattning : This thesis investigates the impact of varying passive components on the stability of a Formula Student race car. The study was conducted using a 7-post model and a lateral model, both of which were derived using Lagrangian methods and state-space modelling techniques. These models were then validated and adjusted using logged data. LÄS MER

  4. 3. Detecting Faults in Telecom Software Using Diffusion Models : A proof of concept study for the application of diffusion models on Telecom data

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

    Författare :Mohamad Nabeel; [2023]
    Nyckelord :Diffusion models; Anomaly Detection; Telecommunication; Time Series; Diffusionsmodeller; Anomalitetsdetektering; Telekommunikation; Tidsserier;

    Sammanfattning : This thesis focuses on software fault detection in the telecom industry, which is crucial for companies like Ericsson to ensure stable and reliable software. Given the importance of software performance to companies that rely on it, automatically detecting faulty behavior in test or operational environments is challenging. LÄS MER

  5. 4. Dynamic Modeling of Heat Power System : Modeling of a Heat Power System Using Physical and Data-driven Methods and Investigation of a Moving Boundary Method

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

    Författare :Albin Gustafsson; [2023]
    Nyckelord :System identification; Dynamic modeling; Organic Rankine cycle; Moving boundary; Thermodynamics.; System identifikation; Dynamisk modellering; Organisk Rankinecykel; Rörliga randvillkor; Termodynamik.;

    Sammanfattning : Our society is becoming more and more electrified every day. However, a significant portion of the world’s electricity generation relies on the combustion of fossil fuels to produce heat, which is subsequently harnessed to generate electricity. One way of generating electricity from heat is by utilizing a Rankine cycle. LÄS MER

  7. 5. What happened to R-star? : Estimating the natural rate of interest in Sweden in unconventional times

    Master-uppsats, Umeå universitet/Nationalekonomi

    Författare :Magnus Dahlberg; [2023]
    Nyckelord :;

    Sammanfattning : This study estimates the natural rate of interest in Sweden using two different models. One state-space model introduced by Holston et al. (2017b) and one vector autoregression model with time-varying parameters (TVP-VAR). The TVP-VAR model is then used to produce a forecast of the real interest rate 5 years out, for every point in time. LÄS MER