[A, B, C, D] = ord2(wn, z)
[num, den] = ord2(wn, z)
| Parameter | Description |
|---|---|
| wn | natural frequency |
| z | damping factor |
| Parameter | Description |
|---|---|
| A | State matrix: Nx-by-Nx matrix. |
| B | Input-to-state matrix: Nx-by-Nu matrix. |
| C | State-to-output matrix: Ny-by-Nx matrix. |
| D | Feedthrough matrix: Ny-by-Nu matrix. |
| num | polynomial coefficients: a row vector or as a cell array of row vectors. |
| den | polynomial coefficients: a row vector or as a cell array of row vectors. |
ord2 offers a convenient way to obtain either the state-space representation or the transfer function of a second-order system based on its natural frequency and damping factor.
wn = 5;
z = 0.7;
[A, B, C, D] = ord2(wn, z);
sys1 = ss(A, B, C, D)
[num, den] = ord2(wn, z);
sys2 = tf(num, den)| Version | Description |
|---|---|
| 1.0.0 | initial version |