Tipo de modelo y otras transformaciones

Convierta el tipo de modelo para el diseño de control, reduzca el orden de un modelo

System Identification Toolbox™ permite crear diferentes tipos de modelos de sistemas dinámicos. También puede realizar distintas transformaciones en los modelos identificados, como fusionar y concatenar dos o más modelos.

Funciones

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Tipos de modelos

`idfrd`	Frequency response data or model
`idpoly`	Polynomial model with identifiable parameters
`idtf`	Transfer function model with identifiable parameters
`idss`	State-space model with identifiable parameters

Transformaciones de modelos

`compreal`	Compute companion state-space realization (Desde R2023b)
`modalreal`	Compute modal state-space realization (Desde R2023b)
`noisecnv`	Transform identified linear model with noise channels to model with measured channels only
`translatecov`	Translate parameter covariance across model transformation operations
`merge`	Merge estimated models
`append`	Agrupar modelos añadiendo sus entradas y salidas
`noise2meas`	Noise component of linear identified model
`absorbDelay`	Replace time delays by poles at z = 0 or phase shift
`chgTimeUnit`	Change time units of dynamic system
`chgFreqUnit`	Change frequency units of frequency-response data model
`fdel`	Delete specified data from frequency response data (FRD) models
`stack`	Crear un arreglo de modelos apilando modelos o arreglos de modelos a lo largo de las dimensiones del arreglo
`ss2ss`	State coordinate transformation for state-space model

Temas

Using Identified Models for Control Design Applications
Using System Identification Toolbox models with Control System Toolbox™ software.
Subreferencing Models
Creating models with subsets of inputs and outputs from multivariable models at the command line.
Realizaciones en espacio de estados
Un modelo en espacio de estados se puede expresar en un número infinito de realizaciones. Las formas comunes, en ocasiones denominadas formas canónicas, incluyen formas modales, compañeras, observables y controlables.
Concatenating Models
Horizontal and vertical concatenation of model objects at the command line.
Merging Models
How to merge models to obtain a single model with parameters that are statistically weighed means of the parameters of the individual models.
Treating Noise Channels as Measured Inputs
Convert noise channels to measured channels and include the variance of the innovations.
Transforming Between Linear Model Representations
Converting between state-space, polynomial, and frequency-response representations.
Reducing Model Order Using Pole-Zero Plots
You can use pole-zero plots of linear identified models to evaluate whether it might be useful to reduce model order.
Create and Plot Identified Models Using Control System Toolbox Software
Identify models and use the Linear System Analyzer to plot the models.