New multirate sampled-data control law structure and synthesis algorithm

1992 ◽  
Vol 15 (5) ◽  
pp. 1183-1191 ◽  
Author(s):  
Martin C. Berg ◽  
Gregory S. Mason ◽  
Gen-Sheng Yang
Keyword(s):  
Control Law ◽  
Sampled Data ◽  
Synthesis Algorithm ◽  
Data Control ◽  
Sampled Data Control

Sampled-data Control of a Class of Nonlinear Flat Systems With Application to Unicycle Trajectory Tracking

2005 ◽  
Vol 128 (3) ◽  
pp. 722-728 ◽  
Author(s):  
N. Léchevin ◽  
C. A. Rabbath
Keyword(s):  
Trajectory Tracking ◽  
Control Method ◽  
Digital Design ◽  
Control Law ◽  
Sampled Data ◽  
Control Laws ◽  
Control Approach ◽  
Flat Systems ◽  
Data Control ◽  
Sampled Data Control

In this paper we propose a flatness-based nonlinear sampled-data control approach for the trajectory tracking of nonlinear differentially flat systems that can be expressed in cascade form. The nonlinear sampled-data control method relies on the flatness property for the generation of appropriate trajectories, with the design of one-step predictive control laws, and on controller discretization by means of an averaging-like method. In the paper we demonstrate that the causality problem that might arise in the implementation is avoided by using an estimator based on numerical integration techniques of sufficiently high order. Stability-like properties are proved. Numerical simulations show that the proposed sampled-data control law offers the best closed-loop performance when compared with nonlinear direct digital design for the trajectory tracking of a rotorcraft-like UAV modeled as the unicycle. The synthesis of the nonlinear sampled-data control law takes advantage of the feedback linearizability property of the unicycle model. Furthermore, the proposed nonlinear sampled-data control does not rely on approximated discretization techniques and is computed from exponentially convergent steering trajectories that result from the stabilization of the linearized unicycle model.

scholarly journals Towards a Simple Sampled-Data Control Law for Stably Invertible Linear Systems

2020 ◽  
Vol 53 (2) ◽  
pp. 4582-4587
Author(s):  
Claudia Sánchez ◽  
Graham C. Goodwin ◽  
Juan I. Yuz ◽  
María Serón ◽  
Diego Carrasco
Keyword(s):  
Linear Systems ◽  
Control Law ◽  
Sampled Data ◽  
Data Control ◽  
Sampled Data Control

Exponential stability of impulsive systems with random delays under sampled-data control

2017 ◽  
Vol 11 (16) ◽  
pp. 2834-2847 ◽  
Author(s):  
Kuppusamy Subramanian ◽  
Palanisamy Muthukumar ◽  
Quanxin Zhu
Keyword(s):  
Exponential Stability ◽  
Sampled Data ◽  
Impulsive Systems ◽  
Random Delays ◽  
Data Control ◽  
Sampled Data Control
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