Sökning: "rendezvous"

Visar resultat 1 - 5 av 12 avhandlingar innehållade ordet rendezvous.

1. 1. Autonomous and Cooperative Landings Using Model Predictive Control

   Författare :Linnea Persson; Bo Wahlberg; Tor Arne Johansen; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cooperative control; autonomous landings; rendezvous; UAV; drone; USV; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : Cooperation is increasingly being applied in the control of interconnected multi-agent systems, and it introduces many benefits. In particular, cooperation can improve the efficiency of many types of missions, and adds flexibility and robustness against external disturbances or unknown obstacles. LÄS MER

3. 2. Risk factors for and Strategies to Prevent Complications of Endoscopic Retrograde Cholangiopancreatography

   Författare :Eva-Lena Syrén; Staffan Eriksson; Lars Enochsson; Arne Eklund; Bengt Isaksson; Gabriel Sandblom; Riadh Sadik; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ERCP; rendezvous ERCP; post-ERCP pancreatitis; choledocholithiasis; cardiovascular complications; case-volume;

   Sammanfattning : Aim: The overall aim of this thesis was to study risk factors for and strategies to prevent complications of Endoscopic Retrograde Cholangiopancreatography (ERCP). Methods: Prospectively registered data from the Swedish National Quality Register for Gallstone Surgery and ERCP (GallRiks) 2006-2018 were retrospectively retrieved and reviewed. LÄS MER

4. 3. Model Predictive Control for Cooperative Rendezvous of Autonomous Unmanned Vehicles

   Författare :Linnea Persson; Bo Wahlberg; Jonathan How; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Autonomous systems; Model Predictive Control; MPC; Autonomous landing; UAV; Unmanned Aerial Vehicle; Moving target; Quadcopter; Implementation; Variable Horizon MPC; Adaptive Horizon MPC; Autonom landning; Modell-prediktiv reglerteknik; quadcopter; autonoma system; MPC; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : This thesis investigates cooperative maneuvers for aerial vehicles autonomously landing on moving platforms. The objective has been to develop methods for safely performing such landings on real systems subject to a variety of disturbances, as well as physical and computational constraints. LÄS MER

5. 4. Trajectory Tracking and Prediction-Based Coordination of Underactuated Unmanned Vehicles

   Författare :Dzenan Lapandic; Bo Wahlberg; Antonio Pedro Aguiar; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : In this thesis, we study trajectory tracking and prediction-based control of underactuated unmanned aerial and surface vehicles.  In the first part of the thesis, we examine the trajectory tracking using prescribed performance control (PPC) assuming that the model parameters are unknown. LÄS MER

7. 5. On control under communicaiton constraints in autonomous multi-robot systems

   Författare :Alberto Speranzon; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Signal processing; Signalbehandling;

   Sammanfattning : Multi-robot systems have important applications, such as space explorations, underwater missions, and surveillance operations. In most of these cases robots need to exchange data through communication. Limitations in the communication system however impose constraints on the design of coordination strategies. LÄS MER