Conversion continue/discrète

Discrétisation des modèles, conversion temporelle discrète/continue, rééchantillonnage

Control System Toolbox™ contient des commandes permettant le rééchantillonnage de modèles de systèmes dynamiques ou leur conversion entre les domaines en temps continu et en temps discret.

Tâches du Live Editor

Conversion de la fréquence du modèle

Convertir des modèles à temps continu en modèles à temps discret et inversement, et rééchantillonner les modèles dans Live Editor

Fonctions

`c2d`	Conversion de modèle du temps continu au temps discret
`d2c`	Convert model from discrete to continuous time
`d2d`	Resample discrete-time model
`upsample`	Upsample discrete-time models
`c2dOptions`	Specify discretization method for continuous-time to discrete-time conversions
`d2cOptions`	Create option set for discrete- to continuous-time conversions
`d2dOptions`	Create option set for discrete-time resampling

Rubriques

Discretizing and Resampling Models
This example shows how to use the commands for continuous/discrete, discrete/continuous, and discrete/discrete conversions.
Discretize a Compensator
This example shows how to convert a compensator from continuous to discrete time using several discretization methods, to identify a method that yields a good match in the frequency domain.
Discretizing a Notch Filter
This example shows the comparison of several techniques for discretizing a notch filter.
Improve Accuracy of Discretized System with Time Delay
This example shows how to improve the frequency-domain accuracy of a system with a time delay that is a fractional multiple of the sample time.
Convert Discrete-Time System to Continuous Time
This example shows how to convert a discrete-time system to continuous time using d2c, and compare the results using two different interpolation methods.
Continuous-Discrete Conversion Methods
Choose discretization and interpolation methods for converting between continuous and discrete models.
Upsample Discrete-Time System
This example shows how to upsample a system using both the d2d and upsample commands and compare the results of both to the original system.
Choosing a Resampling Command
Use resampling commands to change the sample time of a discrete-time system.