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   Articles with "orthogonal matching" as a keyword



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Acoustic sound speed profile inversion based on orthogonal matching pursuit

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recommendations! Published in 2019 at "Acta Oceanologica Sinica"

DOI: 10.1007/s13131-019-1505-4

Abstract: The estimation of ocean sound speed profiles (SSPs) requires the inversion of an acoustic field using limited observations. Such inverse problems are underdetermined, and require regularization to ensure physically realistic solutions. The empirical orthonormal function… read more here.

Keywords: matching pursuit; orthogonal matching; sound; sound speed ... See more keywords
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Bearing fault diagnosis based on Cluster-contraction Stage-wise Orthogonal-Matching-Pursuit

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recommendations! Published in 2019 at "Measurement"

DOI: 10.1016/j.measurement.2019.03.061

Abstract: Abstract This paper presents a novel Cluster-contraction Stage-wise Orthogonal-Matching-Pursuit (CcStOMP) approach for bearing fault information extraction. This approach adds the cluster contraction mechanism to the Stage-wise Orthogonal-Matching-Pursuit (StOMP) algorithm and filter the selected atoms twice… read more here.

Keywords: orthogonal matching; wise orthogonal; fault; cluster contraction ... See more keywords
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Greedy algorithms for diffuse optical tomography reconstruction

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recommendations! Published in 2018 at "Optics Communications"

DOI: 10.1016/j.optcom.2017.09.056

Abstract: Abstract Diffuse optical tomography (DOT) is a noninvasive imaging modality that reconstructs the optical parameters of a highly scattering medium. However, the inverse problem of DOT is ill-posed and highly nonlinear due to the zig-zag… read more here.

Keywords: greedy algorithms; diffuse optical; matching pursuit; optical tomography ... See more keywords
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On the Error Probability of Support Recovery for Orthogonal Matching Pursuit With a Random Measurement Matrix

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recommendations! Published in 2020 at "IEEE Access"

DOI: 10.1109/access.2020.2995912

Abstract: In this paper, an asymptotic bound on the recovery error probability of a sparse signal is derived for the orthogonal matching pursuit algorithm. The proposed bound is based on the support recovery analysis with a… read more here.

Keywords: error probability; orthogonal matching; random measurement; support recovery ... See more keywords
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A Doubly Orthogonal Matching Pursuit Algorithm for Sparse Predistortion of Power Amplifiers

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recommendations! Published in 2018 at "IEEE Microwave and Wireless Components Letters"

DOI: 10.1109/lmwc.2018.2845947

Abstract: This letter presents a new method for the digital predistortion (DPD) of power amplifiers (PAs) based on sparse behavioral models. The Gram–Schmidt orthogonalization is synergistically integrated into the orthogonal matching pursuit algorithm to decorrelate the… read more here.

Keywords: power amplifiers; predistortion; matching pursuit; pursuit algorithm ... See more keywords
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Identification of Sparse Volterra Systems: An Almost Orthogonal Matching Pursuit Approach

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recommendations! Published in 2022 at "IEEE Transactions on Automatic Control"

DOI: 10.1109/tac.2021.3070027

Abstract: This article considers identification of sparse Volterra systems. A method based on the almost orthogonal matching pursuit (AOMP) is proposed. The AOMP algorithm allows one to estimate one nonzero coefficient at a time until all… read more here.

Keywords: orthogonal matching; almost orthogonal; volterra systems; identification sparse ... See more keywords
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Spectral Weighting Orthogonal Matching Pursuit Algorithm for Enhanced Out-of-Band Digital Predistortion Linearization

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recommendations! Published in 2019 at "IEEE Transactions on Circuits and Systems II: Express Briefs"

DOI: 10.1109/tcsii.2018.2878581

Abstract: This brief presents a new variant of the orthogonal matching pursuit (OMP) algorithm for reducing the computational complexity of the digital predistortion (DPD) behavioral model in the forward path. The proposed spectral weighting OMP (SW-OMP)… read more here.

Keywords: orthogonal matching; band; algorithm; digital predistortion ... See more keywords
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Stage-wise orthogonal matching pursuit for estimation of time delay and Doppler doubly spreading of underwater acoustic channels

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recommendations! Published in 2018 at "Journal of the Acoustical Society of America"

DOI: 10.1121/1.5067702

Abstract: The model of time delay and Doppler (DD) doubly spread is usually used for estimation of underwater acoustic channel (UAC) of time-varying and multi path. This study introduces the doubly spread model, then forms the… read more here.

Keywords: matching pursuit; pursuit; time delay; orthogonal matching ... See more keywords
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Enhanced Orthogonal Matching Pursuit Algorithm and Its Application in Mechanical Equipment Fault Diagnosis

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recommendations! Published in 2017 at "Shock and Vibration"

DOI: 10.1155/2017/4896056

Abstract: The vibration signal measured from the mechanical equipment is associated with the operation of key structure, such as the rolling bearing and gear. The effective signal processing method for early weak fault has attracted much… read more here.

Keywords: fault; mechanical equipment; diagnosis; enhanced orthogonal ... See more keywords
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A New Analysis for Support Performance with Block Generalized Orthogonal Matching Pursuit

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recommendations! Published in 2021 at "Mathematical Problems in Engineering"

DOI: 10.1155/2021/9438793

Abstract: For recovering block-sparse signals with unknown block structures using compressive sensing, a block orthogonal matching pursuit- (BOMP-) like block generalized orthogonal matching pursuit (BgOMP) algorithm has been proposed recently. This paper focuses on support conditions… read more here.

Keywords: block; matching pursuit; block generalized; generalized orthogonal ... See more keywords
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An improved algorithm of segmented orthogonal matching pursuit based on wireless sensor networks

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recommendations! Published in 2022 at "International Journal of Distributed Sensor Networks"

DOI: 10.1177/15501329221077165

Abstract: Aiming at the problems of low data reconstruction accuracy in wireless sensor networks and users unable to receive accurate original signals, improvements are made on the basis of the stagewise orthogonal matching pursuit algorithm, combined… read more here.

Keywords: orthogonal matching; pursuit algorithm; matching pursuit; sensor networks ... See more keywords