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Rapid Estimation of Orthogonal Matching Pursuit Representation [PDF]

open access: greenIGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium, 2020
Orthogonal Matching Pursuit (OMP) has proven itself to be a significant algorithm in image and signal processing domain in the last decade to estimate sparse representations in dictionary learning. Over the years, efforts to speed up the OMP algorithm for the same accuracy has been through variants like generalized OMP (g-OMP) and fast OMP (f-OMP). All
Ayan Chatterjee, Peter W. T. Yuen
openaire   +3 more sources

A Sharp Bound on RIC in Generalized Orthogonal Matching Pursuit [PDF]

open access: greenCanadian Mathematical Bulletin, 2018
AbstractThe generalized orthogonal matching pursuit (gOMP) algorithm has received much attention in recent years as a natural extension of the orthogonal matching pursuit (OMP). It is used to recover sparse signals in compressive sensing. In this paper, a new bound is obtained for the exact reconstruction of every K-sparse signal via the gOMP algorithm
Wengu Chen, Huanmin Ge
openaire   +4 more sources

Model-Driven Deep-Learning-Based Underwater Acoustic OTFS Channel Estimation

open access: yesJournal of Marine Science and Engineering, 2023
Accurate channel estimation is the fundamental requirement for recovering underwater acoustic orthogonal time–frequency space (OTFS) modulation signals.
Yuzhi Zhang   +4 more
doaj   +1 more source

Perturbed Orthogonal Matching Pursuit [PDF]

open access: yesIEEE Transactions on Signal Processing, 2013
Compressive Sensing theory details how a sparsely represented signal in a known basis can be reconstructed with an underdetermined linear measurement model. However, in reality there is a mismatch between the assumed and the actual bases due to factors such as discretization of the parameter space defining basis components, sampling jitter in A/D ...
Oguzhan Teke   +2 more
openaire   +5 more sources

An improved algorithm of segmented orthogonal matching pursuit based on wireless sensor networks

open access: yesInternational Journal of Distributed Sensor Networks, 2022
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 with ...
Xinmiao Lu   +4 more
doaj   +1 more source

Generalized Orthogonal Matching Pursuit [PDF]

open access: yesIEEE Transactions on Signal Processing, 2012
As a greedy algorithm to recover sparse signals from compressed measurements, orthogonal matching pursuit (OMP) algorithm has received much attention in recent years. In this paper, we introduce an extension of the OMP for pursuing efficiency in reconstructing sparse signals.
Jian Wang 0016   +2 more
openaire   +2 more sources

Hybrid Precoding Algorithm Based on Discrete Orthogonal Matching Pursuit for Millimeter-Wave Relay Networks [PDF]

open access: yesJisuanji gongcheng, 2020
In order to improve the beamforming gain of massive Multiple-Input Multiple-Output(MIMO) relay system and reduce the hardware cost of phase shifters and radio frequency links in hybrid precoding architecture,this paper proposes a hybrid precoding ...
DING Qingfeng, GAO Xinpeng, DENG Yuqian
doaj   +1 more source

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