Results 41 to 50 of about 2,473,230 (342)

Trajectory Tracking Control for Wheeled Mobile Robots with Unknown Slip Rates Based on Improved Rapid Variable Exponential Reaching Law and Sliding Mode Observer

Machines
Aiming at the trajectory tracking control problem of wheeled mobile robots under unknown slip ratio conditions, this paper designs a trajectory tracking controller based on an improved rapid variable power reaching law and a sliding mode observer. First,
Zexu Li, Jun Guo, Taiyuan Wang, Xiufang Xiong, Yong Feng, Xingshu Li   +5 more
doaj   +1 more source

Optimal design and trajectory tracking experiment of a novel 3-DOF parallel antenna mechanism

AIP Advances, 2022
The tracking range and pointing performance of the antenna are important indices to measure the antenna system. First, the 3 degree of freedom parallel mechanism is proposed for the supporting mechanism of the antenna.
Guoxing Zhang, Xinlu Xia, Yulei Hou, Jinwei Guo, Jianliang He, Chong Li   +5 more
doaj   +1 more source

Design of Joint Controller for Welding Robot and Parameter Optimization

Chemical Engineering Transactions, 2017
Joint control is the basis for welding robot to complete task space trajectory tracking, and the precision of joint control is directly related to the motion performance and precision of the robot. For the coherent and non- linear dynamic characteristics
Chengxiang Li
doaj   +1 more source

A New Trajectory Tracking Control Method for Fully Electrically Driven Quadruped Robot

Machines, 2022
To improve the accuracy of tracking the trunk center-of-mass (CoM) trajectory and foot-end trajectory in a fully electrically driven quadruped robot, an efficient and practical new trajectory tracking control method is designed.
Yulong You, Zhong Yang, Teng’an Zou, Yaoyu Sui, Changliang Xu, Chi Zhang, Hao Xu, Zhao Zhang, Jiaming Han   +8 more
doaj   +1 more source

The Prediction of Badminton Flight Trajectory Based on an Intelligent Compensator

IEEE Access, 2023
A real-time visual servo badminton trajectory tracking system (VSBTTS) is proposed in this study. VSBTTS is composed of two parts: the image unit and the tracking operation unit. The primary function of the image unit is to segment the moving shuttlecock
Chih-Hui Chiu, Jung-Lli Su, Chieh-Min Lin   +2 more
doaj   +1 more source

Trajectory Fusion for Multiple Camera Tracking [PDF]

, 2007
In this paper we present a robust and efficient method to overcome the negative effects of occlusion in the tracking process of multiple agents. The proposed approach is based on the matching of multiple trajectories from multiple views using spatial and temporal information.
Amato, Ariel, Al, Murad, Mozerov, Mikhail, Gonzàlez, Jordi   +3 more
openaire   +3 more sources

Communication-aware trajectory tracking

2008 IEEE International Conference on Robotics and Automation, 2008
This paper investigates the scenario of a robot making a tradeoff between tracking a time-varying reference trajectory and stopping to communicate at points where the radio signal strength is high. Under the assumption that the signal is subject to multipath fading, we formulate this as a hybrid optimal control problem with penalties on tracking error,
Lindhé, Magnus, Johansson, Karl Henrik
openaire   +3 more sources

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

Molecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung, David Bickel, Lena C. M. Krause, Daria Ezeriņa, Christian Ickes, Julian Wojtachnia, Christine S. Gibhardt, Magdalena Shumanska, Khadija Wahni, Andrea Paluschkiwitz, Julia Malo Pueyo, Ekaterina Baranova, Wim Vranken, Hedwig Stanisz, Ioana Stejerean‐Todoran, Michael P. Schön, Joris Messens, Ivan Bogeski   +17 more
wiley   +1 more source

Lateral Trajectory Tracking of Self-Driving Vehicles Based on Sliding Mode and Fractional-Order Proportional-Integral-Derivative Control

Actuators, 2023
The tracking accuracy and vehicle stability of self-driving trajectory tracking are particularly important. Due to the influence of high-frequency oscillation near the sliding mode surface and the modeling error of the single-point preview model itself ...
Xiqing Zhang, Jin Li, Zhiguang Ma, Dianmin Chen, Xiaoxu Zhou   +4 more
doaj   +1 more source

Model-based dynamic feedback control of a planar soft robot: trajectory tracking and interaction with the environment

Int. J. Robotics Res., 2020
Leveraging the elastic bodies of soft robots promises to enable the execution of dynamic motions as well as compliant and safe interaction with an unstructured environment.
Cosimo Della Santina, Robert K. Katzschmann, A. Bicchi, D. Rus   +3 more
semanticscholar   +1 more source