Results 61 to 70 of about 3,975 (201)

OCLeaS – A tomographic PSI Algorithm using Orthogonal Matching Pursuit and Complex Least Squares

open access: diamond, 2021
Matthieu Rebmeister   +4 more
openalex   +1 more source

Orthogonal Matching Pursuit with Tikhonov and Landweber Regularization

open access: yesCoRR, 2019
The Orthogonal Matching Pursuit (OMP) for compressed sensing iterates over a scheme of support augmentation and signal estimation. We present two novel matching pursuit algorithms with intrinsic regularization of the signal estimation step that do not rely on a priori knowledge of the signal's sparsity.
openaire   +2 more sources

2D Orthogonal Matching Pursuit for Fully Polarimetric SAR Image Formation

open access: yesRemote Sensing
Fully polarimetric SAR provides richer scattering information than single-polarisation imaging, but multichannel sparse image formation can be computationally and memory demanding, especially when channels are processed jointly.
Daniele Bonicoli   +2 more
doaj   +1 more source

Investigation on Diverse Sparse Signal Decomposition Techniques for Power Signal Representation

open access: yesEnergies
Power quality disturbance signals must be continuously monitored, stored, and transmitted for effective analysis, protection, and system planning in modern power systems.
Vivek Anjali   +1 more
doaj   +1 more source

OMP-ELM: Orthogonal Matching Pursuit-Based Extreme Learning Machine for Regression

open access: yesJournal of Intelligent Systems, 2015
Extreme learning machine (ELM) is a recent scheme for single hidden layer feed forward networks (SLFNs). It has attracted much interest in the machine intelligence and pattern recognition fields with numerous real-world applications.
Alcin Omer F.   +3 more
doaj   +1 more source

Joint sparse channel estimation based on angle domain and delay domain

open access: yes上海师范大学学报. 自然科学版, 2017
For the channel estimation problem of multiple input multiple output(MIMO) systems in doubly-selective (DS) channels and the joint sparse characteristic in the delay domain and angle domain,a new joint sparse channel estimation scheme based on ...
Zhang Yueming   +4 more
doaj   +1 more source

Sparse Recovery With Orthogonal Matching Pursuit Under RIP [PDF]

open access: yesIEEE Transactions on Information Theory, 2011
This paper presents a new analysis for the orthogonal matching pursuit (OMP) algorithm. It is shown that if the restricted isometry property (RIP) is satisfied at sparsity level $O(\bar{k})$, then OMP can recover a $\bar{k}$-sparse signal in 2-norm. For compressed sensing applications, this result implies that in order to uniformly recover a $\bar{k ...
openaire   +3 more sources

Recuperación de señales dispersas utilizando orthogonal matching pursuit (OMP)

open access: yesIngeniería e Investigación, 2009
Muestreo compresivo es una rama emergente del procesamiento de señales, basada en el hecho de que un número pequeño de proyecciones lineales no adaptativas sobre una señal compresible contiene suficiente información para reconstruirla y proce- sarla.
Adriana Patricia Lobato Polo   +3 more
doaj  

On efficiency of Orthogonal Matching Pursuit

open access: yes, 2010
We show that if a matrix $Φ$ satisfies the RIP of order $[CK^{1.2}]$ with isometry constant $\dt = c K^{-0.2}$ and has coherence less than $1/(20 K^{0.8})$, then Orthogonal Matching Pursuit (OMP) will recover $K$-sparse signal $x$ from $y=Φx$ in at most $[CK^{1.2}]$ iterations. This result implies that $K$-sparse signal can be recovered via OMP by $M=O(
openaire   +2 more sources

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