Using the operation by fixed-pointprocessing, cheap and fast processors can be realized, which helps to reduce the production cost. This paper uses a newly defined cost function. It discusses also the convergence of the "polarized-x" method. This method updates the coefficient of the nonrecursive filter based on the product with the reference signal polarity, which is an operation suited to fixed-point processing. A normalized recursive adaptation algorithm is derived from the new cost function, which is usef…
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