Model order reduction of commensurate linear discrete-time fractional-order systems

Balanced Truncation Approximation / Singular Perturbation Approximation for commensurate fractional-order systems. This archive contains the Matlab scripts for calculation of controllability and observability Gramians for commensurate fractional-order systems as well as BTA and SPA reduction methods for fractional-order systems. This is the code developed for the paper: Rydel M., Stanisławski R., Latawiec K.J., Gałek M.: Model order reduction of commensurate linear discrete-time fractional-order systems, IFAC PapersOnLine vol. 51, no. 1, pp. 536-541, DOI: 10.1016/j.ifacol.2018.05.090, In: 5th IFAC Conference on Advances in Control and Optimization of Dynamical Systems, ACODS 2018, Hyderabad, India, February 18 - 22, 2018, pp. 568-57