Select

**Estimate**>**State Space Models**.The State Space Models dialog box opens.

**Tip**For more information on the options in the dialog box, click**Help**.Specify a model name by clicking adjacent to

**Model name**. The name of the model must be unique in the Model Board.Select the

**Specify value**option (if not already selected) and specify the model order in the edit field. Model order refers to the number of states in the state-space model.**Tip**When you do not know the model order, search for and select an order. For more information, see Estimate Model With Selected Order in the App.Select the

**Continuous-time**or**Discrete-time**option to specify the type of model to estimate.You cannot estimate a discrete-time model if the working data is continuous-time frequency-domain data.

Expand the

**Model Structure Configuration**section to select the model structure, such as canonical form, whether to estimate the disturbance component (*K*matrix) and specification of feedthrough and input delays.For more information about the type of state-space parameterization, see Supported State-Space Parameterizations.

Expand the

**Estimation Options**section to select the estimation method and configure the cost function.Select one of the following

**Estimation Method**from the drop-down list and configure the options. For more information about these methods, see State-Space Model Estimation Methods.Click

**Estimate**to estimate the model. A new model gets added to the System Identification app.

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