idfrd: S3 class constructor for storing frequency response data

Description Usage Arguments Value See Also

Description

S3 class constructor for storing frequency response data

Usage

1
idfrd(respData, freq, Ts, spec = NULL, covData = NULL, noiseCov = NULL)

Arguments

respData

frequency response data. For SISO systems, supply a vector of frequency response values. For MIMO systems with Ny outputs and Nu inputs, supply an array of size c(Ny,Nu,Nw).

freq

frequency points of the response

Ts

sampling time of data

spec

power spectra and cross spectra of the system output disturbances (noise). Supply an array of size (Ny,Ny,Nw)

covData

response data covariance matrices. Supply an array of size (Ny,Nu,Nw,2,2). covData[ky,ku,kw,,] is the covariance matrix of respData[ky,ku,kw]

noiseCov

power spectra variance. Supply an array of size (Ny,Ny,Nw)

Value

an idfrd object

See Also

plot.idfrd for generating bode plots, spa and etfe for estimating the frequency response given input/output data


sysid documentation built on May 2, 2019, 4:18 a.m.