Search for dissertations about: "Torbjörn Wigren"

Showing result 1 - 5 of 6 swedish dissertations containing the words Torbjörn Wigren.

  1. 1. Recursive identification based on the nonlinear Wiener model

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Torbjörn Wigren; [1990]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : .... READ MORE

  2. 2. Nonlinear Approaches to Periodic Signal Modeling

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Emad Abd-Elrady; Torsten Söderström; Torbjörn Wigren; Jonas Sjöberg; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cramer-Rao bounds; frequency estimation; identification; limit cycle; nonlinear systems; periodic signals; Wiener model structure; TECHNOLOGY Information technology Signal processing; TEKNIKVETENSKAP Informationsteknik Signalbehandling; Signal Processing; Signalbehandling;

    Abstract : Periodic signal modeling plays an important role in different fields. The unifying theme of this thesis is using nonlinear techniques to model periodic signals. The suggested techniques utilize the user pre-knowledge about the signal waveform. This gives these techniques an advantage as compared to others that do not consider such priors. READ MORE

  3. 3. Nonlinear Identification and Control with Solar Energy Applications

    University dissertation from Uppsala : Institutionen för informationsteknologi

    Author : Linda Brus; Bengt Carlsson; Torbjörn Wigren; Graham C. Goodwin; [2008]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; feedforward control; model predictive control; nonlinear control; nonlinear systems; recursive identification; solar power; system identification; time delay systems; TECHNOLOGY Information technology Automatic control; TEKNIKVETENSKAP Informationsteknik Reglerteknik; Automatic Control; Reglerteknik;

    Abstract : Nonlinear systems occur in industrial processes, economical systems, biotechnology and in many other areas. The thesis treats methods for system identification and control of such nonlinear systems, and applies the proposed methods to a solar heating/cooling plant. READ MORE

  4. 4. Recursive black-box identification of nonlinear state-space ODE models

    University dissertation from Uppsala University

    Author : Linda Brus; Bengt Carlsson; Torbjörn Wigren; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Elektroteknik med inriktning mot reglerteknik; Electrical Engineering with specialization in Automatic Control;

    Abstract : Nonlinear system identification methods is a topic that has been gaining interest over the last years. One reason is the many application areas in controller design and system development. However, the problem of modeling nonlinear systems is complex and finding a general method that can be used for many different applications is difficult. READ MORE

  5. 5. System identification and control for general anesthesia based on parsimonious Wiener models

    University dissertation from Uppsala University

    Author : Margarida Martins da Silva; Torbjörn Wigren; Alexander Medvedev; [2012]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Elektroteknik med inriktning mot reglerteknik; Electrical Engineering with specialization in Automatic Control;

    Abstract : The effect of anesthetics in the human body is usually described by Wiener models. The high number of patient-dependent parameters in the standard models, the poor excitatory pattern of the input signals (administered anesthetics) and the small amount of available input-output data make application of system identification strategies difficult. READ MORE