dssdata

Syntax

[A, B, C, D, E, Ts] = dssdata(SYSLTI)

Inputs

SYSLTI

The descriptor state-space model.

Outputs

A

The state matrix (n x n), where n is the number of states.

B

The input matrix (n x p), where p is the number of inputs.

C

The output matrix (q x n), where q is the number of outputs.

D

The direct transmission matrix (q x p).

E

The descriptor matrix (n by n).

Ts

Sampling time (in seconds)

Examples

A=[0 1;-2 -3];
B=[0;1];
C=[1 0];
D = 0;
E = [1 0; 0 1];
sys1 = dss(A, B, C, D, E)
[Aout, Bout, Cout, Dout, Eout] = dssdata(sys1)

Aout = [Matrix] 2 x 2
 0   1
-2  -3
Bout = [Matrix] 2 x 1
0
1
Cout = [Matrix] 1 x 2
1  0
Dout = 0
Eout = [Matrix] 2 x 2
1  0
0  1

tf_sys=tf([1],[1 5 6]);
sys1=ss(tf_sys);
sys2=dss(sys1.a,sys1.b,sys1.c,sys1.d,sys1.e);
[Aout, Bout, Cout, Dout, Eout] = dssdata(sys2)

Aout = [Matrix] 2 x 2
-5  -3
 2   0
Bout = [Matrix] 2 x 1
0.50000
0.00000
Cout = [Matrix] 1 x 2
0  1
Dout = 0
Eout = [Matrix] 2 x 2
1  0
0  1

Comments

[A, B, C, D, E] = dssdata(SYS) extracts the values of the A, B, C, D, and E matrices from the descriptor state-space model SYS.