Specifications

2 Building Models
2-32
dry_data_detrended = detrend(dry_data);
Estimate a linear plant model.
You can use System Identification Toolbox software to estimate a linear plant model in
one of the following forms:
• State-space model
• Transfer function model
• Polynomial model
• Process model
• Grey-box model
For this example, estimate a third-order, linear state-space plant model using the
detrended data.
plant = ssest(dry_data_detrended,3);
To view the estimated parameters and estimation details, at the MATLAB command
prompt, type plant.
See Also
detrend | iddata | ssest
Related Examples
• “Identify Linear Models Using System Identification App”
• “Design Controller for Identified Plant” on page 2-33
• “Design Controller Using Identified Model with Noise Channel” on page 2-35
More About
• “Handling Offsets and Trends in Data”
• “Working with Impulse-Response Models” on page 2-37