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- Q168388 subject Q10024113.
- Q168388 subject Q7013138.
- Q168388 abstract "An adaptive filter is a system with a linear filter that has a transfer function controlled by variable parameters and a means to adjust those parameters according to an optimization algorithm. Because of the complexity of the optimization algorithms, almost all adaptive filters are digital filters. Adaptive filters are required for some applications because some parameters of the desired processing operation (for instance, the locations of reflective surfaces in a reverberant space) are not known in advance or are changing. The closed loop adaptive filter uses feedback in the form of an error signal to refine its transfer function.Generally speaking, the closed loop adaptive process involves the use of a cost function, which is a criterion for optimum performance of the filter, to feed an algorithm, which determines how to modify filter transfer function to minimize the cost on the next iteration. The most common cost function is the mean square of the error signal.As the power of digital signal processors has increased, adaptive filters have become much more common and are now routinely used in devices such as mobile phones and other communication devices, camcorders and digital cameras, and medical monitoring equipment.".
- Q168388 thumbnail Adaptive_Filter_General.png?width=300.
- Q168388 wikiPageWikiLink Q10024113.
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- Q168388 wikiPageWikiLink Q7013138.
- Q168388 wikiPageWikiLink Q79785.
- Q168388 wikiPageWikiLink Q846780.
- Q168388 comment "An adaptive filter is a system with a linear filter that has a transfer function controlled by variable parameters and a means to adjust those parameters according to an optimization algorithm. Because of the complexity of the optimization algorithms, almost all adaptive filters are digital filters.".
- Q168388 label "Adaptive filter".
- Q168388 depiction Adaptive_Filter_General.png.