Stability tests of N-dimensional discrete time systems using polynomial arrays

Author(s):  
X. Hu
Author(s):  
Andre F. Caldeira ◽  
Daniel Coutinho ◽  
Carlos E. de Souza ◽  
Valter J. S. Leite

Complexity ◽  
2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Rafał Stanisławski ◽  
Marek Rydel ◽  
Krzysztof J. Latawiec

This paper provides new results on a stable discretization of commensurate fractional-order continuous-time LTI systems using the Al-Alaoui and Tustin discretization methods. New, graphical, and analytical stability/instability conditions are given for discrete-time systems obtained by means of the Al-Alaoui discretization scheme. On this basis, an analytically driven stability condition for discrete-time systems using the Tustin-based approach is presented. Finally, the stability of discrete-time systems obtained by finite-length approximation of the Al-Alaoui and Tustin operators are discussed. Simulation experiments confirm the effectiveness of the introduced stability tests.


1986 ◽  
Author(s):  
Robert P. Van Til ◽  
William E. Schmitendorf

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