Sökning: "Parameter identification"

Visar resultat 21 - 25 av 181 avhandlingar innehållade orden Parameter identification.

  1. 21. The Dirac Equation: Numerical and Asymptotic Analysis

    Författare :Hasan Almanasreh; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Dirac operator; eigenvalue problem; finite element method; spurious eigenvalues; Petrov-Galerkin; cubic Hermite basis functions; stability parameter; meshfree method; $hp$-cloud; intrinsic enrichment; G-convergence; $ Gamma$-convergence; scattering theory; identification; wave operator; stationary approach; Dirac operator;

    Sammanfattning : The thesis consists of three parts, although each part belongs to a specific subject area in mathematics, they are considered as subfields of the perturbation theory. The main objective of the presented work is the study of the Dirac operator; the first part concerns the treatment of the spurious eigenvalues in the computation of the discrete spectrum. LÄS MER

  3. 22. Estimation Problems in Array Signal Processing, System Identification, and Radar Imagery

    Författare :Richard Abrahamsson; Peter Stoica; A. Lee Swindlehurst; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Parameter Estimation; Array Signal Processing; STAP; SAR; Ground Penetrating Radar; System Identification; Bilinear Models; Covariance Matrix Estimation; Signal processing; Signalbehandling; Signalbehandling; Signal Processing;

    Sammanfattning : This thesis is concerned with parameter estimation, signal processing, and applications. In the first part, imaging using radar is considered. More specifically, two methods are presented for estimation and removal of ground-surface reflections in ground penetrating radar which otherwise hinder reliable detection of shallowly buried landmines. LÄS MER

  4. 23. Parameter estimation and model based control design of drive train systems

    Författare :Mats Tallfors; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Signalbehandling; control; drive train; estimation; identification; mechanical; Signalbehandling; Signal processing; Signalbehandling;

    Sammanfattning : The main control task in many speed-controlled drives is to eliminate or reduce the load speed error caused by the load torque disturbance and reduce oscillations as quickly as possible. This thesis addresses different aspects of identification and control of such resonant elastic systems. LÄS MER

  5. 24. Condition Monitoring and Fault Diagnosis of Fluid Power Systems : Approaches with Neural Networks and Parameter Identification

    Författare :Teresia Ramdén; Richard T. Burton; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This thesis deals with condition monitoring and fault diagnosis of fluid power pumps and systems. Neural networks and parameter identification techniques have been important in the work. Vibration measurements have also been of importance.There is a need to find deterioration in fluid power systems (as in any system) at an early stage. LÄS MER

  7. 25. Modeling and identification of biological systems with emphasis on osmoregulation in yeast

    Författare :Peter Gennemark; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; osmotic stress; Saccharomyces cerevisiae; model identification; parameter estimation; model selection; ordinary differential equations;

    Sammanfattning : This thesis deals with two topics in the area of systems biology. Thefirst topic, model identification, concerns the problem ofautomatically identifying a mathematical model of a biochemical systemfrom experimental data. LÄS MER