Normalized Lattice Recursive Least Squares Filter (NLRLS)
The normalized form of the LRLS has fewer recursions and variables. It can be calculated by applying a normalization to the internal variables of the algorithm which will keep their magnitude bounded by one. This is generally not used in real-time applications because of the number of division and square-root operations which comes with a high computational load.
Read more about this topic: Recursive Least Squares Filter
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