Title
Linear time-invariant feedback operator for mobile robot trajectory tracking
Abstract
In this paper we propose a linear time-invariant (LTI) state feedback operator for nonholonomic mobile robots to track a pre-defined trajectory on a 2D planar region. Designing an on-line smooth state feedback control law is still among the major challenges for solving the trajectory tracking problem of nonholonomic systems including differential drive mobile robots. To address this problem, numerous nonlinear feedback control laws have been proposed to date. Most of these feedback control laws yield online solutions to the trajectory tracking problem with satisfactory tracking errors asymptotically. In most cases, they suffer from an overwhelming degree of computational complexity even to track a 2D trajectory using a simple unicycle-like nonholonomic system. The proposed control law offers an advantage of being smooth and LTI state-feedback in addition to its capability to address problems of partially observed systems. The shortcoming of the proposed control law is that the LTI feedback operator is computed off-line before the robot applies its control signal into the left and right wheels through their actuators. The theoretical results are supported by computer simulations followed by experiments with an e-puck mobile robot.
Year
DOI
Venue
2015
10.1109/I2MTC.2015.7151362
Instrumentation and Measurement Technology Conference
Keywords
Field
DocType
actuators,computational complexity,control system synthesis,linear systems,mobile robots,nonlinear control systems,observers,state feedback,trajectory control,wheels,LTI state feedback operator,actuator,computational complexity,e-puck mobile robot,linear time-invariant state feedback operator,nonholonomic mobile robot,nonlinear feedback control,partially observed system,state feedback control law design,trajectory tracking,wheel
LTI system theory,Robot control,Linear system,Control theory,Feedback linearization,Robot kinematics,Control engineering,Engineering,Nonholonomic system,Trajectory,Mobile robot
Conference
Citations 
PageRank 
References 
0
0.34
10
Authors
4
Name
Order
Citations
PageRank
Md. Suruz Miah1668.89
Wail Gueaieb227232.84
Farkas, P.A.300.34
Salah al-Sharhan410613.21