Search for dissertations about: "Coherent control"

Showing result 1 - 5 of 96 swedish dissertations containing the words Coherent control.

  2. 1. On performance limitations of large-scale networks with distributed feedback control

    Author : Emma Tegling; Henrik Sandberg; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Networked control systems; microgrids; platooning; vehicular formation; multi-agent systems; H2 norms; fundamental limitations; consensus; Distributed control; large-scale networks; oscillator networks; power networks; power system dynamics; system performance; spatially invariant systems; Electrical Engineering; Elektro- och systemteknik;

    Abstract : We address the question of performance of large-scale networks with distributed feedback control. We consider networked dynamical systems with single and double integrator dynamics, subject to distributed disturbances. We focus on two types of problems. First, we consider problems modeled over regular lattice structures. READ MORE

  4. 2. Learning Sequential Decision Rules in Control Design: Regret-Optimal and Risk-Coherent Methods

    Author : Matias I. Müller; Cristian R. Rojas; Håkan Hjalmarsson; Tom Oomen; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Engineering sciences deal with the problem of optimal design in the face of uncertainty. In particular, control engineering is concerned about designing policies/laws/algorithms that sequentially take decisions given unreliable data. This thesis addresses two particular instances of optimal sequential decision making for two different problems. READ MORE

  5. 3. Coherent structures and control in wall-bounded turbulent flows

    Author : Marco Atzori; Philipp Schlatter; Ricardo Vinuesa; Oscar Flores; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Turbulent boundary layers; numerical simulations; coherent structures; predetermined flow control.; Turbulenta gränsskikt; numeriska simuleringar; koherenta strukturer; förutbestämd flödeskontroll; Teknisk mekanik; Engineering Mechanics;

    Abstract : This thesis is concerned with two distinct topics related to the study of wall-bounded turbulence: the connection between instantaneous three-dimensional coherent structures and mean-flow properties, and the development and analysis of pre-determined control techniques for adverse-pressure-gradient boundary layers.We examined regions with intense velocity fluctuations in various flowcases. READ MORE

  6. 4. Regret and Risk Optimal Design in Control

    Author : Matias Müller; Cristian R. Rojas; Anders Rantzer; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Engineering sciences deal with the problem of optimal design in the face of uncertainty. In particular, control engineering is concerned about designing policies/laws/algorithms that sequentially take decisions given unreliable data.This thesis addresses two particular instances of optimal sequential decision making for two different problems. READ MORE

  7. 5. Experimental Studies of Quantum Dynamics and Coherent Control in Homonuclear Alkali Diatomic Molecules

    Author : Bo Zhang; KTH; []
    Keywords : ultrafast laser spectroscopy; pump-probe technique; predissociation; wavepacket; spin-orbit interaction; coherent control; dephasing;

    Abstract : The main theme covered in this thesis is experimentalstudies of quantum dynamics and coherent control in homonuclearalkali diatomic molecules by ultrafast laser spectroscopy iththe implementation of pump-probe techniques.A series of experiments have been performed on the Rb2molecules in a molecular beam as well as in a thermal oven. READ MORE