METHOD AND APPARATUS FOR PROVIDING AN ERROR CHARACTERIZATION ESTIMATE OF AN IMPULSE RESPONSE DERIVED USING LEAST SQUARES

摘要

A filter adaptation unit suitable for producing a set of filter coefficients is provided including an error characterization unit for characterizing the error in a filter's impulse response. The error characterization unit generates a set of error characterization data elements associated to a newly generated set of filter coefficents. A selection unit then makes a selection between one of the newly generated set of filter coefficients and an existing set of filter coefficients at least in part on the basis of their respective sets of error characterization data elements. The selected set of filter coefficients is then released in a format suitable for use by an adaptive filter.