New approach to H∞ filtering for uncertain discrete-time linear systems in finite frequency domain

2016 ◽  
Author(s):  
D. El Hellani ◽  
A. El Hajjaji ◽  
R. Ceschi
Keyword(s):  
Frequency Domain ◽  
Linear Systems ◽  
Discrete Time ◽  
Finite Frequency ◽  
New Approach ◽  
Time Linear

scholarly journals A new approach to constrained state estimation for discrete-time linear systems with unknown inputs

2017 ◽  
Vol 28 (1) ◽  
pp. 326-341 ◽  
Author(s):  
Jose Fernando Garcia Tirado ◽  
Alejandro Marquez-Ruiz ◽  
Hector Botero Castro ◽  
Fabiola Angulo
Keyword(s):  
State Estimation ◽  
Linear Systems ◽  
Discrete Time ◽  
New Approach ◽  
Unknown Inputs ◽  
Time Linear

scholarly journals A new approach to the realization problem for fractional discrete-time linear systems

2016 ◽  
Vol 64 (1) ◽  
pp. 9-14 ◽  
Author(s):  
T. Kaczorek
Keyword(s):  
Linear Systems ◽  
Discrete Time ◽  
Transfer Matrices ◽  
Realization Problem ◽  
New Approach ◽  
Numerical Examples ◽  
Time Linear

Abstract A new approach to the realization problem for fractional discrete-time linear systems is proposed. A procedure for computation of fractional realizations of given transfer matrices is presented and illustrated by numerical examples.

An Output Feedback Approach to Enlarging the Controllable Region for Systems Subject to Actuator Saturation

2011 ◽  
Vol 71-78 ◽  
pp. 4256-4260
Author(s):  
Hong Bo Zou ◽  
Hui Hui Feng ◽  
Xiao Dong Zhao
Keyword(s):  
Linear Systems ◽  
Discrete Time ◽  
Output Feedback ◽  
Actuator Saturation ◽  
Precise Description ◽  
New Approach ◽  
Input Amplitude ◽  
Simulation Results ◽  
Implementation Method ◽  
Time Linear

The problem of output feedback for the unstable discrete-time linear systems with input amplitude constraints is studied. Based on the precise description of controllable region, the typical implementation method of observer-based output feedback will decrease the system’s controllable region, a new approach is proposed in this paper, which make the system’s controllable domain as big as possible. Finally, two illustrative examples and simulation results are given to demonstrate the effectiveness of the proposed method.

scholarly journals Determination of positive realizations with reduced numbers of delays or without delays for discrete-time linear systems

2012 ◽  
Vol 22 (4) ◽  
pp. 451-465 ◽  
Author(s):  
Tadeusz Kaczorek
Keyword(s):  
Transfer Function ◽  
Linear Systems ◽  
Discrete Time ◽  
Sufficient Conditions ◽  
Diagram Method ◽  
State Variable ◽  
Discrete Time Systems ◽  
Time Systems ◽  
Time Linear

A new modified state variable diagram method is proposed for determination of positive realizations with reduced numbers of delays and without delays of linear discrete-time systems for a given transfer function. Sufficient conditions for the existence of the positive realizations of given proper transfer function are established. It is shown that there exists a positive realization with reduced numbers of delays if there exists a positive realization without delays but with greater dimension. The proposed methods are demonstrated on a numerical example.

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