Search for dissertations about: "high frequency modelling"

Showing result 1 - 5 of 156 swedish dissertations containing the words high frequency modelling.

  1. 1. Time series modelling of high frequency stock transaction data

    Author : Shahiduzzaman Quoreshi; Kurt Brännäs; Per Johansson; Umeå universitet; []
    Keywords : Economics; Count data; Intra-day; High frequency; Time series; Estimation; Long memory; Finance; Nationalekonomi; Econometrics; ekonometri;

    Abstract : .... READ MORE

  2. 2. Modelling of cavity partial discharges at variable applied frequency

    Author : Cecilia Forssén; Roland Eriksson; Hans Edin; Peter H.F. Morshuis; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; partial discharges; measurements; modelling; variable frequency; cavities; disc-shaped; polycarbonate; Electric power engineering; Elkraftteknik;

    Abstract : The presence of partial discharges (PD) in high voltage components is generally a sign of defects and degradation in the electrical insulation. To diagnose the condition of high voltage insulation, PD measurements is commonly used. READ MORE

  3. 3. Field Programmable Gate Arrays and Reconfigurable Computing in Automatic Control

    Author : Carl Wilhelmsson; Förbränningsmotorer; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; systems analysis; FPGA; Field Programmable Gate Array; programming; Compendex: Field programmable gate arrays FPGA ; programming environments; computer science; programmable controllers; observers; adaptive control; modelling; closed loop systems; logic CAD; control systems; reconfigurable architectures; field programmable gate arrays; Computer Programming; telecommunication control; Control system applications; Real time control; Computer control systems; Control systems; Engine Control; Heat release analysis; Cylinder pressure; power-train control; Vehicle control; High speed; Rapid Prototyping; Combustion control; Automotive control; Control application; High frequency; Computer control; Feedback Control; Closed loop systems; Control; Reconfigurable computing; Reconfigurable hardware; VLSI; Closed loop control; programmable logic arrays; Automatic Control; System on Chip SoC ;

    Abstract : New combustion engine principles increase the demands on feedback combustion control, at the same time economical considerations currently enforce the usage of low-end control hardware limiting implementation possibilities. Significant development is simultaneously and continuously carried out within the field of Field Programmable Gate Arrays (FPGAs). READ MORE

  4. 4. Modelling of Terahertz Planar Schottky Diodes

    Author : Aik-Yean Tang; Chalmers University of Technology; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; S-parameter extraction; Electro-thermal; Schottky diodes; Skin effect; Electromagnetic; Frequency multipliers; High-power frequency multiplier; Current crowding; Proximity effect; Submillimetre wave generation and detection; Geometric modelling; Gallium Arsenide;

    Abstract : This thesis deals with the modelling of THz planar Schottky diodes, focusing on analyses of the geometry- dependent parasitics and the diode chip thermal management. Moving towards higher operating frequencies, the electromagnetic couplings pose significant limitations on the diode performance. READ MORE

  5. 5. III-V Nanowire MOSFET High-Frequency Technology Platform

    Author : Stefan Andric; Nanoelektronik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MOSFET; III-V; nanowire NW ; Technology library; Process Monitor Structures; Radio Frequency; millimeter wave mmWave ; Compact Modelling; Circuit Design; Matching Networks; Low Noise Amplifier;

    Abstract : This thesis addresses the main challenges in using III-V nanowireMOSFETs for high-frequency applications by building a III-Vvertical nanowire MOSFET technology library. The initial devicelayout is designed, based on the assessment of the current III-V verticalnanowire MOSFET with state-of-the-art performance. READ MORE