MATLAB Examples

Estimate the unknown parameters of a continuous-time model.

Access the estimation report.

Estimate model parameters using linear and nonlinear grey-box modeling.

Represent the structure of the following continuous-time model:

Estimate parameters in user-defined model structures. Such structures are specified by IDGREY (linear state-space) or IDNLGREY (nonlinear state-space) models. We shall investigate

Estimate a transfer function from frequency response data. You use Simulink® Control Design™ to collect frequency response data from a Simulink model and the tfest command to estimate a

Illustrates how models simulated in Simulink® can be identified using System Identification Toolbox™. The example describes how to deal with continuous-time systems and delays, as well

Develop and analyze simple models from a real laboratory process data. We start with a small description of the process, learn how to import the data to the toolbox and preprocess/condition

Manage data and model objects available in the System Identification Toolbox™. System identification is about building models from data. A data set is characterized by several pieces of

Obtain linear approximations of a complex, nonlinear system by means of linear model identification. The approach is based on selection of an input signal that excites the system. A linear

The benefits of regularization for identification of linear and nonlinear models.

Estimate models using frequency domain data. The estimation and validation of models using frequency domain data work the same way as they do with time domain data. This provides a great

Estimate a transfer function from measured signal data.

Build simple process models using System Identification Toolbox™. Techniques for creating these models and estimating their parameters using experimental data is described. This

Perform and troubleshoot the identification of a SISO system using frequency-response data (FRD). The techniques explained here can also be applied to MIMO models and frequency-domain

Estimate ARMAX and OE-form models using the state-space estimation approach.

Several identification methods available in System Identification Toolbox™. We begin by simulating experimental data and use several estimation techniques to estimate models from the

Estimate the unknown parameters of a discrete-time model.

Identify a transfer function containing a specified number of poles for given data.

Estimate a process model with fixed parameters.

Estimate a transfer function model with unknown transport delays and apply an upper bound on the unknown transport delays.

Identify a transfer function to fit a given frequency response data (FRD) containing additional phase roll off induced by input delay.

Estimate transfer function models with I/O delays.

Deal with data with several input and output channels (MIMO data). Common operations, such as viewing the MIMO data, estimating and comparing models, and viewing the corresponding model

Estimate the parameters of a first-order process model:

Estimate a model that is parameterized by poles, zeros, and gains. The example requires Control System Toolbox™ software.

Compare multiple estimated models using the estimation report.

Linear model identification of a glass tube manufacturing process. The experiments and the data are discussed in:

Estimate a transfer function model when the structure of the expected model is known and apply constraints to the numerator and denominator coefficients.

Analyze an estimation and configure another estimation using the estimation report.

Computation of bending modes of a flexible wing aircraft. The vibration response of the wing is collected at multiple points along its span. The data is used to identify a dynamic model of the

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