Sökning: "LQG"

Visar resultat 1 - 5 av 29 uppsatser innehållade ordet LQG.

  1. 1. Validation of the attitude control of KNATTE with flexible appendages

    Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Författare :Christoffer Johansson; [2022]
    Nyckelord :KNATTE; flexible appendages; control; SMC; LQG; PWM; PWPF;

    Sammanfattning : The effect of flexible panels on a spacecraft during attitude movement may induce problems if not correctly accounted for in the control system for the spacecraft. The aim of this thesis is to find and evaluate, control algorithms that could be suitable for the Kinesthetic Node and Autonomous Table-Top Emulator (KNATTE) with two flexible mock-up solar panels during an attitude movement of 20 degrees. LÄS MER

  3. 2. Modelling and testing of a solar panel structure for KNATTE (Kinesthetic Node and Autonomous Table-Top Emulator)

    Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Författare :Elena Fernández Bravo; [2021]
    Nyckelord :Frictionless platform; Linear Quadratic Gaussian; Flexible appendages; Finite Element Method;

    Sammanfattning : One of the challenges that satellites face is the interaction between control movement and vibration of flexible appendages such as solar arrays and antennas that can negatively affect the performance of the spacecraft. The aim of this thesis is to develop a numerical model of a solar panel structure for KNATTE, a frictionless platform developed by the Onboard Space Systems group at Luleå University of Technology, and develop a control law that reduces the flexible vibration of the solar arrays when attitude control manoeuvres are performed. LÄS MER

  4. 3. Comparing Control Strategies fora Satcom on the Move Antenna

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Joakim Hellberg; Axel Sundkvist; [2020]
    Nyckelord :Mechatronics; Control; Satcom on-the-Move; SOTM; H2; Optimal Control; Linear QuadraticGaussian LQG ; LQR; Spiral Search; Estimator; Mekatronik; Reglerteknik; Satcomon-the-Move; SOTM; H2; OptimalReglering; LQG; LQR; Spiralsökning; Tillståndsskattare;

    Sammanfattning : Satellite communication is a widely known method for communicating with remote or disaster-strickenplaces. Sometimes, thecommunication can be a matter of life and death,and it is thus vital that it works well. LÄS MER

  5. 4. Multi-Hypothesis Motion Planning under Uncertainty Using Local Optimization

    Master-uppsats, Linköpings universitet/Reglerteknik

    Författare :Anja Hellander; [2020]
    Nyckelord :Motion planning; Path planning; Local optimization; RRT*; Homotopy; LQG; Belief space planning; Optimal control;

    Sammanfattning : Motion planning is defined as the problem of computing a feasible trajectory for an agent to follow. It is a well-studied problem with applications in fields such as robotics, control theory and artificial intelligence. LÄS MER

  7. 5. Konstruktion och reglering av inverterad pendel

    Kandidat-uppsats, Uppsala universitet/Fasta tillståndets elektronik

    Författare :Robin Hellmers; Viktor Boström; [2018]
    Nyckelord :estimator; state; control; technology; linear; feedback; estimation; inverted; pendulum; electronics; stepper; motor; reglerteknik; inverterad; pendel; reglering; elektronik; arduino; stegmotor; pid; lqg; linjär; kalman; kalmanfilter; lqr; tillståndsbeskrivning; tillstånd; återkoppling; mikrokontroller; mikrokontrollerkort; motor;

    Sammanfattning : Syftet med projektet är att konstruera en inverterad pendel som sedan med hjälp av reglertekniska metoder ska stabiliseras. De linjära regulatorer som prövats är Proportionell, Integrerande och Deriverande (PID) -regulatorn och Linnear Quadratic Gaussian (LQG) -regulatorn som båda är populära och beprövade i industrin. LÄS MER