| Paper: | SPTM-P8.5 | ||
| Session: | Adaptive Filters II | ||
| Time: | Thursday, May 20, 13:00 - 15:00 | ||
| Presentation: | Poster | ||
| Topic: | Signal Processing Theory and Methods: Adaptive Systems & Filtering | ||
| Title: | FAST COUPLED ADAPTATION FOR SPARSE CHANNELS USING A PARTIAL HAAR TRANSFORM | ||
| Authors: | Neil Bershad; University of California, Irvine | ||
| Anurag Bist; Intel Corporation | |||
| Abstract: | This paper presents a novel scheme for identifying the impulse response of a sparse channel. The scheme consists of two adaptive filters operating sequentially. The first adaptive filter adapts using a partial Haar transform of the input and yields an estimate of the location of the peak of the sparse impulse response. The second adaptive filter is then centered about this estimate. Both filters are short in comparison to the delay uncertainty of the unknown channel. The principle advantage of this scheme is that two short adaptive filters can be used instead of one long adaptive filter, resulting in faster overall convergence and reduced computational complexity and storage. | ||
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