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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Wagner, K. Doroslovački, M. |
| Copyright Year | 1991 |
| Abstract | In the past, ad hoc methods have been used to choose gains in proportionate-type normalized least mean-square algorithms without strong theoretical under-pinnings. In this correspondence, a theoretical framework and motivation for adaptively choosing gains is presented, such that the mean-square error will be minimized at any given time. As a result of this approach, a new optimal proportionate-type normalized least mean-square algorithm is introduced. A computationally simplified version of the theoretical optimal algorithm is derived as well. Both of these algorithms require knowledge of the mean-square weight deviations. Feasible implementations, which estimate the mean-square weight deviations, are presented. The performance of these new feasible algorithms are compared to the performance of standard adaptive algorithms when operating with sparse, non-sparse, and time-varying impulse responses, when the input signal is white. Specifically, we consider the transient and steady-state mean-square errors as well as the overall computational complexity of each algorithm. |
| Sponsorship | IEEE Signal Processing Society |
| Starting Page | 2410 |
| Ending Page | 2415 |
| Page Count | 6 |
| File Size | 570729 |
| File Format | |
| ISSN | 1053587X |
| Volume Number | 59 |
| Issue Number | 5 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-05-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Signal processing algorithms Noise Steady-state Computational complexity Approximation algorithms Convergence Approximation methods least mean-square methods Adaptive filters adaptive signal processing echo suppression identification |
| Content Type | Text |
| Resource Type | Article |
| Subject | Signal Processing Electrical and Electronic Engineering |
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