Search for dissertations about: "feedback loops"

Showing result 1 - 5 of 45 swedish dissertations containing the words feedback loops.

  2. 1. Relay Feedback and Multivariable Control

    Author : Karl Henrik Johansson; Institutionen för reglerteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; robotics; Automation; Frequency methods; Process control; Sequential control; Automatic tuning; Control education; Laboratory process; Performance limitations; Decentralized control; Multivariable zero; Multivariable systems; Hybrid control; Nonlinear dynamics; Limit cycles; Oscillations; Relay feedback; Sliding modes; control engineering; Automatiska system; robotteknik; reglerteknik;

    Abstract : This doctoral thesis treats three issues in control engineering related to relay feedback and multivariable control systems. Linear systems with relay feedback is the first topic. Such systems are shown to exhibit several interesting behaviors. READ MORE

  4. 2. On Robot Feedback from Range Sensors : Reliable Control by Active Reduction of Uncertainty and Ambiguities

    Author : Jonas Nygårds; John Hallam; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; robot gripping and docking; LQG-feedback; posture estimation; Gaussian sum; optronic sensing; sheet of light range camera; time-of-flight laser; specular reflection s; multiple scattering; range ghosts ; active reduction of ambiguities; reliability; uncertainty; tolerances;

    Abstract : This thesis is on modelling and experimental tests when non contact sensing isused for feedback control in robotics. The motion of the robot is to be controlled relative to objects in the surrounding workspace during operations like gripping/docking, surface following, shape measuring etc. READ MORE

  5. 3. Two strategies for dealing with uncertainty in social-ecological systems

    Author : Åsa Svenfelt; Göran Finnveden; Karl-Henrik Dreborg; Rebecka Milestad; Philip J. Vergragt; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Futures studies; social-ecological systems; feedback loops; environmental policy; environmental quality objectives; participation; scenarios; Environmental engineering; Miljöteknik;

    Abstract : The scale of environmental problems is increasing. Globalisation and trade haveweakened the links between the ecosystems in which goods are produced and thecommunities in which they are consumed. READ MORE

  6. 4. Conceptual Politics in Practice : How Soft Power Changed the World

    Author : Stephanie Christine Winkler; Mark Rhinard; Linus Hagström; Patrick Thaddeus Jackson; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; academia policy nexus; alliance; China; concepts; critical concept studies; decline; feedback loops; interaction effects; International Relations; Japan; power shift; power; reification; rise; science; security; sharp power; smart power; soft power; travel; United States; internationella relationer; International Relations;

    Abstract : Concepts are a key feature of academic research and international politics. Despite the fact that interpreting, classifying and communicating the world through concepts has far-reaching social and political consequences, their various roles and complex dynamics remain poorly understood in International Relations (IR). READ MORE

  7. 5. Flexible Embedded Control Systems : Design and Implementation

    Author : Johan Eker; Institutionen för reglerteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Automation; Feedback scheduling; Quality of service; Linear quadratic control; Toolbox; Simulation; Rapid prototyping; Programming language; Scheduling; Embedded systems; Real-time system; robotics; control engineering; Automatiska system; robotteknik; reglerteknik;

    Abstract : Embedded control system design is a complex and error prone task, and there is a great need for better development tools. Today most real-time control systems are static systems, designed in an ad-hoc fashion. A more interactive way of working would give shorter development times, reduced costs for testing, and safer, more robust systems. READ MORE