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Definition of "estimation" |
in adaptive control, a key role is played by on-line determination of process parameters. A recursive parameter estimator is present in many adaptive control schema such as self-tuning regulator (explicitly) or model-reference adaptive controller (implicitly). Usually, parameters estimation is viewed in the broader context of system identification formed by selection of model structure, experiment design, parameters estimation, and validation. In adaptive control, the parameters vary continuously, and it is necessary to estimate them recursively. A basic technique used for parameters estimation is the Least Squares Method. This method is particularly useful if the model has the property of being linear in the parameters. |
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