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Filters
Affine combinations of adaptive filters
2008
2008 42nd Asilomar Conference on Signals, Systems and Computers
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We extend the analysis presented in [1] for the affine combination of two least mean-square (LMS) filters to allow for colored inputs and nonstationary environments. ...
Through the analysis, we observe that the affine combination of two algorithms of the same family with close adaptation parameters (stepsizes or forgetting factors) provides a 3 dB gain in relation to ...
Fig. 1 . 1 Affine combination of two transversal adaptive filters. ...
doi:10.1109/acssc.2008.5074399
fatcat:j2dnr43ponhzxla7pl3ier6w5e
A New Approach to Extract Fetal Electrocardiogram Using Affine Combination of Adaptive Filters
[article]
2023
arXiv
pre-print
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In this paper, we introduce a new method based on affine combinations of adaptive filters to extract FECG signals. ...
The affine combination of multiple filters is able to precisely fit the reference signal, and thus obtain more accurate FECGs. ...
METHODOLOGY Fig 2 shows the general scheme of an affine combination of two adaptive filters. Filter 1 and Filter 2 can be either LMS or RLS. ...
arXiv:2210.11658v4
fatcat:qvbfseisffcf3dfaox2fzm7blq
Comparison of convex combination and affine combination of adaptive filters
2009
2009 IEEE International Conference on Acoustics, Speech and Signal Processing
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In the area of combination of adaptive filters, two main approaches, namely convex and affine combinations have been introduced. ...
Index Termsadaptive filtering, combination of adaptive filters, projection to unit simplex minimize J c (ω c ) = σ 2 d − p T R −1 p + (ω c − ωo) T R(ω c − ωo) subject to 1 T ω a = 1 ω c ≥ 0. ...
AFFINE AND CONVEX COMBINATION OF ADAPTIVE FILTERS
Data Model We assume that there are m adaptive filtering branches with (zero mean) outputs y k (t), k = 1, . . . , m to be combined. ...
doi:10.1109/icassp.2009.4960277
dblp:conf/icassp/ErdoganKS09
fatcat:b22n75e5ljhddavlhywze5ybbm
Affine Combination of Two Adaptive Sparse Filters for Estimating Large Scale MIMO Channels
[article]
2014
arXiv
pre-print
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First, problem formulation and standard affine combination of adaptive least mean square (LMS) algorithm are introduced. ...
Then we proposed an effective affine combination method with two sparse LMS filters and designed an approximate optimum affine combiner according to stochastic gradient search method as well. ...
Fig. 2 . 2 Affine combination of two adaptive filters for estimating large-scale MIMO channels.
Fig hx , , i 12 are independent. ...
arXiv:1407.6083v1
fatcat:7u6tf6jl5feuxfoyerw67difra
Two are Better Than One: Adaptive Sparse System Identification using Affine Combination of Two Sparse Adaptive Filters
[article]
2013
arXiv
pre-print
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and standard affine combination of LMS filters. ...
First, problem formulation and standard affine combination of LMS filters are introduced. ...
ACKNOWLEDGMENT This work was supported by grant-in-aid for the Japan Society for the Pro motion of Science (JSPS) fellows grant number 24 02366. ...
arXiv:1311.1312v1
fatcat:ferj4ofzxzhuxn3f7s3luapulq
Reducing of EMSE Using Affine Combination of Adaptive Filters
English
2014
International Journal of Research and Applications
English
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We propose an adaptive affine combination of two adaptive filters in that combination select one is fast and one slow. In this paper we proposed LMS, NMLS and CMA algorithm technique. ...
The resulting combination should profit than single filter technique. ...
Fig. 2 . 2 Affine combination of two signals.
Fig. 3 . 3 Ensemble average of n(n) adapted with the N-LMS algorithm.
Fig1. ...
doi:10.17812/ijra.1.2(13)2014
fatcat:b7ktm2ztlbbghlfr76z376fk5q
Normalized Combinations of Proportionate Affine Projection Sign Subband Adaptive Filter
2021
Scientific Programming
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The proportionate affine projection sign subband adaptive filter (PAP-SSAF) has a better performance than the affine projection sign subband adaptive filter (AP-SSAF) when we eliminate the echoes. ...
In order to solve this problem, we propose a normalized combination of PAP-SSAF (NCPAP-SSAF) based on the normalized adaption schema. ...
Acknowledgments is work was supported in part by the National Natural Science Foundation of China (61350009), and in part by the National Natural Science Foundation of China 61179045. ...
doi:10.1155/2021/8826868
doaj:1f42cc0cd048474fa6933bf8b03ff809
fatcat:fpx4prv67rhzxco4epm54jelue
An affine combination of adaptive filters for channels with different sparsity levels
2016
Telfor Journal
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We also demonstrate that affine combination results in faster convergence than a convex combination of two adaptive filters. ...
In this paper we present an affine combination strategy for two adaptive filters. ...
Fig. 7 . 7 Mixing parameter λ of convex and affine combination filters.
Fig. 8 . 8 Learning curves of the affine combination filter with different γ-s. ...
doi:10.5937/telfor1601032b
fatcat:6affcui7sncjhfeasfvrc7petu
Steady State Analysis of Convex Combination of Affine Projection Adaptive Filters
2015
Research Journal of Applied Sciences Engineering and Technology
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For this purpose, we have used two affine projection adaptive filters with complementary nature (both in step size and projection order) as the component filters. ...
The aim of the study is to propose an adaptive algorithm using convex combinational approach to have both fast convergence and less steady state error simultaneously. ...
But none satisfies all the requirement of an adaptive filter. ...
doi:10.19026/rjaset.10.2554
fatcat:g2zf6z4ke5htdglb5mbqjyflie
Steady-State Performance of an Adaptive Combined MISO Filter Using the Multichannel Affine Projection Algorithm
2018
Algorithms
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The combination of adaptive filters is an effective approach to improve filtering performance. ...
In this paper, we investigate the performance of an adaptive combined scheme between two adaptive multiple-input single-output (MISO) filters, which can be easily extended to the case of multiple outputs ...
In this paper, we focus on the combination of adaptive filters in the multichannel case. ...
doi:10.3390/a12010002
fatcat:ajymvzmeczflnghtfuy46y472q
An Affine Combination of Two LMS Adaptive Filters—Transient Mean-Square Analysis
2008
IEEE Transactions on Signal Processing
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This paper studies the statistical behavior of an affine combination of the outputs of two least mean-square (LMS) adaptive filters that simultaneously adapt using the same white Gaussian inputs. ...
The purpose of the combination is to obtain an LMS adaptive filter with fast convergence and small steady-state mean-square deviation (MSD). ...
of the combined adaptive filter. ...
doi:10.1109/tsp.2007.911486
fatcat:bcovu4dig5dubg7arwaeycjbfi
Two Are Better Than One: Adaptive Sparse System Identification Using Affine Combination of Two Sparse Adaptive Filters
2014
2014 IEEE 79th Vehicular Technology Conference (VTC Spring)
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and standard affine combination of LMS filters. ...
First, problem formulation and standard affine combination of LMS filters are introduced. ...
Koichi Adachi of Institute for Infocomm Research for his valuable comments and suggestions. ...
doi:10.1109/vtcspring.2014.7023132
dblp:conf/vtc/GuiKMA14
fatcat:qdh5kzlx6zdntid7jyrhutco3y
A MIXING VECTOR BASED AN AFFINE COMBINATION OF TWO ADAPTIVE FILTERS FOR SENSOR ARRAY BEAMFORMING
2012
Electromagnetic Waves
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In this paper, we propose a novel general affine combination structure of two adaptive filters for interference mitigation of antenna array. ...
The proposed approach adaptively combines two individual filters by coefficient weights vector instead of one scale parameter and takes the constraint of affine combination into consideration rather than ...
ACKNOWLEDGMENT This work was supported in part by the National Nature Science Foundation of China by Grant 60901056, and the "973" Program of China by Grant 2010CB731903. ...
doi:10.2528/pier11090204
fatcat:hmed5acp6rhbtolxll5gjfz4su
Stochastic analysis of an error power ratio scheme applied to the affine combination of two LMS adaptive filters
2011
Signal Processing
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The affine combination of two adaptive filters that simultaneously adapt on the same inputs has been actively investigated. ...
In these structures, the filter outputs are linearly combined to yield a performance that is better than that of either filter. ...
The analysis of the affine combination of adaptive filters has been further expanded in [10, 11] . Affine and convex combinations have been compared in [12] [13] [14] . ...
doi:10.1016/j.sigpro.2011.05.017
fatcat:rixc7q5ahjhprfjpqaskgjqdc4
Adaptive Affine Combination of Two IPNLMS Filters for Robust Sparse Echo Cancellation
unpublished
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To overcome these limitations, a combination approach of two adaptive filters that combines the output of individual filters through a mixing parameter has been developed. ...
We propose an adaptive affine combination of two IPNLMS filters as a robust solution to alleviate the convergence speed vs steady-state error tradeoff, and to efficiently increase IPNLMS robustness to ...
PROPOSED ADAPTIVE AFFINE COMBINATION OF IPNLMS FILTERS Let us consider two adaptive filters (w1 and w2) combined in a manner as shown in Figure 2 . ) (n x is the input vector, common for both adaptive ...
fatcat:v2s4uhzfzfamzkupvghfeecjn4
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