Continuous-Discrete Conversion

Model discretization, discrete to continuous time conversion, resampling

Control System Toolbox™ has commands for resampling dynamic system models or converting them between the continuous-time and discrete-time domains.

Live Editor Tasks

Convert models between continuous time and discrete time and resample models in the Live Editor

`c2d`	Convert model from continuous to discrete time
`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

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.