PFRD - Parameter-varying frequency response data model
Contents
Syntax
S = pfrd(Data,Domain)
Description
S = pfrd(Data,Domain) creates a parameter-varying frequency response data model defined on an N-dimensional rectangular grid. Domain is an rgrid object that specifies the N independent variables and the rectangular grid domain. Data is an N-dimensional frequency response data (frd) array. Data(:,:,i1,...,iN) is the frequency response data evaluated at the point Domain(i1,....,iN).
Example
% Create a 1-by-1 frequency response model defined on a 1-dimensional grid IVData = linspace(2,20,10); Domain = rgrid('a',IVData); omeg = logspace(-1,2,30); for i=1:length(IVData) sys = ss(-IVData(i),IVData(i),1,0); Data(1,1,i) = frd(sys,omeg); end S = pfrd(Data,Domain)
PFRD with 1 Outputs, 1 Inputs, Continuous System, 30 Frequency points. The PFRD consists of the following blocks: a: Gridded real, 10 points in [2,20], rate bounds [-Inf,Inf].
Overlay Bode plots at each independent variable
bode(S);
