An alpha beta filter (also called alpha-beta filter, f-g filter or g-h filter ) is a simplified form of observer for estimation, data smoothing and control applications. It is closely related to Kalman filters and to linear state observers used in control theory. Its principal advantage is that it does not require a detailed system model.
Read more about Alpha Beta Filter: Filter Equations, Sample Program, Relationship To General State Observers, Relationship To Kalman Filters, Choice of Parameters, The Alpha Beta Gamma Extension
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