— Function File: zp2sys (zer, pol, k, tsam, inname, outname)

Create system data structure from zero-pole data.

Inputs

zer

Vector of system zeros.

pol

Vector of system poles.

k

Scalar leading coefficient.

tsam

Sampling period; default: 0 (continuous system).

inname

outname

Input/output signal names (lists of strings).

Output

sys

System data structure.

Example

          octave:1> sys=zp2sys([1 -1],[-2 -2 0],1);
          octave:2> sysout(sys)
          Input(s)
                  1: u_1
          Output(s):
                  1: y_1
          zero-pole form:
          1 (s - 1) (s + 1)
          -----------------
          s (s + 2) (s + 2)
     

— Function File: [zer, pol, k, tsam, inname, outname] = sys2zp (sys)

Extract zero/pole/leading coefficient information from a system data structure.

See zp for parameter descriptions.

Example

          octave:1> sys=ss([1 -2; -1.1,-2.1],[0;1],[1 1]);
          octave:2> [zer,pol,k] = sys2zp(sys)
          zer = 3.0000
          pol =
            -2.6953
             1.5953
          k = 1