functionfromFile

Generate a DiscreteZerosAndPoles data record by reading the polynomial coefficients or zeros and poles from a file

Information

Syntax

dzp = DiscreteZerosAndPoles.Import.fromFile(fileName)

Description

Reads and loads a discrete zeros-and-poles transfer function from a mat-file fileName. The file must contain the sample time Ts and either the set of variables n1, n2, d1, d2, and k with the associated first and second order polynomials or the variables p, z, and k with the poles and zeros, written in two column arrays with real and imaginary in the first and second column respectively. The variable k is the real gain in both cases.

Example

algorithm
  dzp:=Modelica_LinearSystems2.DiscreteZerosAndPoles.Import.fromFile(DataDir + "/dzp.mat");
//  zp = (q^2 + 2*q + 3)/(q + 2)/(q^2 + 2*q + 2)

Inputs

TypeNameDefaultDescription
StringfileNameDataDir + "dzp.mat"Name of the discrete zeros and poles data file

Outputs

TypeNameDefaultDescription
DiscreteZerosAndPolesdzp