This function convert a Continuos Descriptor system into a Discrete Descriptor system in restricted system Equivalence form
[E1t,Ad, B1t,B2t]=c2dd (E,A,B,Te)
Continuos matrices of descriptor system. E singular
Discrete equivalent matrices
Sample Time
Given a Descriptor system in the form dxEdt=Ax+Bu y =Cx+Du The equivalent discrete descriptor system is (See Karampetakis, (2003) and *.pdf in /.../DeCaToKi/doc path) x1((k+1)T) = Adx1(kT)+B1tu(kT) E1tx2((k+1)T)= x2(kT)+B2tu(kT) E1t is a Nilpotent Matrix and the equivalent discrete system is in r.s.e standar form.
[1] Karampetakis, N. P, (2003). On the discretization of singular systems. IMA Journal of Mathematical Control and Information. Vol. 21, pp. 223-242
[2] Koumboulis, F. N. and Mertzios,(1999), B. G. on Kalman Controlability and Observability Criteria for Singular Systems Circuits Systems and Signals, 18, 269-290
[1] Lewis, F. L. (1985). Fundamental, reachability, and observability matrices for discrete descriptor systems. IEE Transactions on Automatic Control 30(5), 502–505.