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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

Categories

Prepare Data
Plot, analyze, and preprocess data; remove outliers and other data anomalies
Estimate Parameters and States
Specify estimation data, progress plots, and optimization methods; speed up estimation using parallel computing and fast restart
Validate Estimation
Compare measured data with simulated model response, compare residuals

Featured Examples

Muscle Reflex Parameter Estimation

Muscle Reflex Parameter Estimation

Estimate parameters of a muscle reflex model.

DC Servo Motor Parameter Estimation

DC Servo Motor Parameter Estimation

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

Engine Speed Model Parameter Estimation

Engine Speed Model Parameter Estimation

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

Clutch Friction Coefficient Estimation

Clutch Friction Coefficient Estimation

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

Inverted Pendulum Parameter Estimation

Inverted Pendulum Parameter Estimation

Estimate multiple parameters of a model by iterated estimations.

Simplified Alternator Parameter Estimation

Simplified Alternator Parameter Estimation

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

Estimate Vehicle Drag Coefficients by Coast-Down Testing

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 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

Parameter Estimation with Constraints

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

Since R2023b

Open Live Script