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   Articles with "adaptive filter" as a keyword



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Two Novel Arctangent Normalized Subband Adaptive Filter Algorithms Against Impulsive Interferences

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recommendations! Published in 2018 at "Circuits, Systems, and Signal Processing"

DOI: 10.1007/s00034-017-0583-9

Abstract: In this paper, two arctangent-based normalized subband adaptive filter (Arc-NSAF) algorithms are proposed, which are derived from two different forms of arctangent cost function and their difference is the order of the arctangent computation and… read more here.

Keywords: algorithms; normalized subband; adaptive filter; subband adaptive ... See more keywords
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Incorporating Nonparametric Knowledge to the Least Mean Square Adaptive Filter

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recommendations! Published in 2019 at "Circuits, Systems, and Signal Processing"

DOI: 10.1007/s00034-018-0954-x

Abstract: In the framework of the maximum a posteriori estimation, the present study proposes the nonparametric probabilistic least mean square (NPLMS) adaptive filter for the estimation of an unknown parameter vector from noisy data. The NPLMS… read more here.

Keywords: least mean; adaptive filter; mean square; incorporating nonparametric ... See more keywords
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Combined functional link adaptive filter for nonlinear acoustic echo cancellation

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recommendations! Published in 2020 at "Analog Integrated Circuits and Signal Processing"

DOI: 10.1007/s10470-020-01719-5

Abstract: The usage of low-quality components in communicating devices may introduce nonlinearity in the audio signals. The degree of nonlinearity may vary over time due to the nonstationary nature of audio signals. In the presence of… read more here.

Keywords: adaptive filter; performance; link adaptive; functional link ... See more keywords

FPGA implementation of modified error normalized LMS adaptive filter for ECG noise removal

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recommendations! Published in 2018 at "Cluster Computing"

DOI: 10.1007/s10586-017-1602-0

Abstract: High frequency noise and channel noise are dominant in wireless ECG monitoring systems which can be modeled as white Gaussian noise. Least mean square (LMS) algorithm based adaptive filters are the preferred choice for white… read more here.

Keywords: noise removal; error normalized; filter; noise ... See more keywords
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The wavelet transform-domain adaptive filter for nonlinear acoustic echo cancellation

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recommendations! Published in 2020 at "Multimedia Tools and Applications"

DOI: 10.1007/s11042-020-09218-5

Abstract: The usage of low-quality components in communicating devices introduces acoustic nonlinearity. The presence of nonlinearity creates challenges in noise cancellation applications, especially the acoustic echo cancellation (AEC) that requires an adaptive filter of a very… read more here.

Keywords: adaptive filter; cancellation; flaf; wtd flaf ... See more keywords

Automatic tap-length adjustment of adaptive filter for feedback attenuation in hearing aids

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recommendations! Published in 2020 at "Applied Acoustics"

DOI: 10.1016/j.apacoust.2019.107043

Abstract: Abstract In this paper, a tap-length-adaptation algorithm is proposed for adaptive feedback cancellation (AFC) in the adaptive filter used in digital hearing aids. The existing state-of-the-art feedback cancellers use a fixed-length adaptive filter, which might… read more here.

Keywords: length; tap length; feedback; adaptive filter ... See more keywords

Efficient implementation of LMS adaptive filter-based FECG extraction on an FPGA

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recommendations! Published in 2020 at "Healthcare Technology Letters"

DOI: 10.1049/htl.2020.0016

Abstract: In this Letter, the field programmable gate array (FPGA) implementation of a foetal heart rate (FHR) monitoring system is presented. The system comprises a preprocessing unit to remove various types of noise, followed by a… read more here.

Keywords: fecg extraction; extraction; unit; implementation ... See more keywords
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A Novel Normalized Subband Adaptive Filter Algorithm Based on the Joint-Optimization Scheme

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recommendations! Published in 2022 at "IEEE Access"

DOI: 10.1109/access.2022.3143136

Abstract: Herein, we propose a normalized subband adaptive filter (NSAF) algorithm that adjusts both the step size and regularization parameter. Based on the random-walk model, the proposed algorithm is derived by minimizing the mean-square deviation of… read more here.

Keywords: filter algorithm; normalized subband; novel normalized; adaptive filter ... See more keywords
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Improving Speaker Recognition in Environmental Noise With Adaptive Filter

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recommendations! Published in 2022 at "IEEE Access"

DOI: 10.1109/access.2022.3225405

Abstract: Speaker recognition is challenging in real-world environments. Typically, studies approach noises only in an additive manner. However, real environments commonly present reverberating conditions that worsen speech processing. When not considering reverberation in the system modeling,… read more here.

Keywords: speaker recognition; adaptive filter; improving speaker; speaker ... See more keywords
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A Supply-Noise-Induced Jitter Canceling Adaptive Filter for LPDDR5 Mobile DRAM

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recommendations! Published in 2023 at "IEEE Journal of Solid-State Circuits"

DOI: 10.1109/jssc.2022.3203221

Abstract: This article presents a supply-noise-induced jitter (SIJ) cancellation technique based on an adaptive filter (AF) using a least mean-square (LMS) algorithm. It cancels jitter along with the clock distribution network (CDN) and the transmit paths,… read more here.

Keywords: induced jitter; adaptive filter; jitter; supply noise ... See more keywords
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A High-Performance and Energy-Efficient FIR Adaptive Filter Using Approximate Distributed Arithmetic Circuits

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recommendations! Published in 2019 at "IEEE Transactions on Circuits and Systems I: Regular Papers"

DOI: 10.1109/tcsi.2018.2856513

Abstract: In this paper, a fixed-point finite impulse response adaptive filter is proposed using approximate distributed arithmetic (DA) circuits. In this design, the radix-8 Booth algorithm is used to reduce the number of partial products in… read more here.

Keywords: approximate distributed; adaptive filter; filter; energy ... See more keywords