idfrd

S3 class constructor for storing frequency response data

Provides functions for constructing mathematical models of dynamical systems from measured input-output data.

Suraj Yerramilli

sysid

System Identification in R

Arun Tangirala

idfrd function

<dl><dt>respData</dt>
<dd>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).</dd>
<dt>freq</dt>
<dd>frequency points of the response</dd>
<dt>Ts</dt>
<dd>sampling time of data</dd>
<dt>spec</dt>
<dd>power spectra and cross spectra of the system 
output disturbances (noise). Supply an array of size (Ny,Ny,Nw)</dd>
<dt>covData</dt>
<dd>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]</dd>
<dt>noiseCov</dt>
<dd>power spectra variance. Supply an array of 
size (Ny,Ny,Nw)</dd></dl>

Arguments

S3 class constructor for storing frequency response data — idfrd

<dl>

<dt>respData</dt>
<dd>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).</dd>


<dt>freq</dt>
<dd>frequency points of the response</dd>


<dt>Ts</dt>
<dd>sampling time of data</dd>


<dt>spec</dt>
<dd>power spectra and cross spectra of the system 
output disturbances (noise). Supply an array of size (Ny,Ny,Nw)</dd>


<dt>covData</dt>
<dd>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]</dd>


<dt>noiseCov</dt>
<dd>power spectra variance. Supply an array of 
size (Ny,Ny,Nw)</dd>

</dl>

idfrd: S3 class constructor for storing frequency response data

Description

Usage

Value

Arguments

See Also