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Iddata Source

Import time-domain data stored in iddata object in MATLAB workspace

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  • Iddata Source block

Libraries:
System Identification Toolbox

Description

The Iddata Source block imports the input-output time-domain data stored in an iddata object in the MATLAB® workspace. You can use this block to import data for simulating a model in Simulink®.

Examples

Simulate Nonlinear ARX Model in Simulink

Simulate Nonlinear ARX Model in Simulink

Compare the simulated output of a Nonlinear ARX Model block to the measured output of a system. You improve the agreement between the measured and simulated responses by estimating initial state values.

Open Script

Ports

Output

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Input data stored in iddata object, returned as a scalar for single-input data and a vector of length Nu for multichannel data with Nu inputs. If z is the iddata object, the output at this port at simulation time t is z.InputData at time t. If t is greater than z.SamplingInstants(end), the maximum time in z, the input data is returned as 0 for each input channel.

Data Types: double

Output data stored in iddata object, returned as a scalar for single-output data and as a vector of length Ny for multichannel data with Ny outputs. If z is the iddata object, the output at this port at simulation time t is z.OutputData at time t. If t is greater than z.SamplingInstants(end), the maximum time in z, the output data is returned as 0 for each output channel.

Data Types: double

Parameters

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Time-domain data that is to be imported, specified as an iddata object that you have created in the MATLAB workspace. The iddata object must contain only one experiment. For a multiple-experiment iddata object z, to specify an iddata object for experiment number kexp, specify IDDATA object as getexp(z,kexp).

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

Version History

Introduced in R2008a

See Also

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