Parameter Estimation

Estimate model parameters and initial states from data, calibrate models

Estimate parameters and states of a Simulink^® model using measured data in the Parameter Estimator, or at the command line. You can estimate and validate multiple model parameters at the same time, using multi-experiment data, and can specify bounds for the parameters. The software formulates parameter estimation as an optimization problem. The optimization problem solutions are the estimated parameter values.

You can generate MATLAB^® code from the app, and accelerate parameter estimation using parallel computing and Simulink fast restart.

Parameter Estimation Basics

Featured Examples

Muscle Reflex Parameter Estimation

Estimate parameters of a muscle reflex model.

Open Script

DC Servo Motor Parameter Estimation

Estimate the parameters of a multi-domain DC servo motor model constructed using various physical modeling products.

Open Script

Engine Speed Model Parameter Estimation

Estimate the coefficients of a nonlinear (quadratic) function to approximate the dynamic behavior of a system component.

Open Script

Clutch Friction Coefficient Estimation

Use Simulink® Design Optimization™ to estimate parameters of a clutch model created using Simscape™ Driveline™ library blocks.

Open Script

Inverted Pendulum Parameter Estimation

Estimate multiple parameters of a model by iterated estimations.

Open Script

Simplified Alternator Parameter Estimation

Use parameter bounds to improve estimation performance. This is illustrated by estimating the power rating, P, of a synchronous machine.

Open Script

Estimate Vehicle Drag Coefficients by Coast-Down Testing

Estimate the drag coefficients of a vehicle using coast-down velocity data.

Since R2023b
Open Live Script

Estimate Model Parameters Using Time-Independent Data (Code)

Estimate model parameters when the experiment data describes a time-independent X-Y relationship.

Since R2023b
Open Live Script

Parameter Estimation with Constraints

Estimate model parameters at the command line and impose constraints on the parameter values.

Since R2023b
Open Live Script

Parameter Estimation with Simscape Models

In this example, you estimate the parameters for a Simscape™ model consisisting of a mass, spring, and damper, such that the model output matches the measured data, using the Parameter Estimator app. The model does not have any Simulink® signals. The example shows Simulink Design Optimization™ directly interacting with Simscape. For example, you can specify the position of the mass by clicking on the corresponding Simscape block.

Open Live Script

Perform Grouped Estimation of Model Parameters for Single-Particle Battery Model

Estimate the parameters of a single-particle model with electrolyte dynamics (SPMe) of a Li-ion battery. You estimate the model parameters to match the voltage output of the battery model to a measured voltage response.

Open Live Script

Parameter Estimation

Parameter Estimation Basics

Categories

Featured Examples