Results 71 to 80 of about 206,616 (184)

A* Orthogonal Matching Pursuit: Best-First Search for Compressed Sensing Signal Recovery

open access: yes, 2012
Compressed sensing is a developing field aiming at reconstruction of sparse signals acquired in reduced dimensions, which make the recovery process under-determined.
Blumensath   +24 more
core   +1 more source

Channel estimation for massive multiple‐input and multiple‐output system based on different measurement matrices

open access: yesIET Networks, 2019
This study proposes a construction method of deterministic measurement matrix based on a correlation criterion. On this basis, the authors investigated the massive multiple‐input and multiple‐output (MIMO) channel estimation algorithm using the ...
Ruijin Ma, Huisheng Zhang
doaj   +1 more source

PARAMETRIC AUDIO CODER BASED ON SPARSE APPROXIMATION WITH FRAME-BASED PSYCHOACOUSTIC OPTIMIZED WAVELET PACKET DICTIONARY

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2019
Time-frequency signal transform is considered. Advantages of joint time-frequency analysis over traditional separate analysis in time or frequency domains are shown.
Al. A. Petrovsky, V. Y. Herasimovich
doaj  

Sparse Signal Recovery via Rescaled Matching Pursuit

open access: yesAxioms
We propose the Rescaled Matching Pursuit (RMP) algorithm to recover sparse signals in high-dimensional Euclidean spaces. The RMP algorithm has less computational complexity than other greedy-type algorithms, such as Orthogonal Matching Pursuit (OMP).
Wan Li, Peixin Ye
doaj   +1 more source

MATCHING PURSUIT ALGORITHM IN ASSESSING THE STATE OF ROLLING BEARINGS [PDF]

open access: yesApplied Computer Science, 2017
In this paper the results of Matching Pursuit (MP) Octave algorithm applied to noise, vibration and harness (NVH) diagnosis of rolling bearings are presented. For this purpose two bearings in different condition state were examined.
Kamil JONAK, Paweł KRUKOW
doaj   +1 more source

New Coherence and RIP Analysis for Weak Orthogonal Matching Pursuit

open access: yes, 2014
In this paper we define a new coherence index, named the global 2-coherence, of a given dictionary and study its relationship with the traditional mutual coherence and the restricted isometry constant.
de Hoog, Frank, Yang, Mingrui
core   +1 more source

Mobile robot visual image hierarchical matching algorithm based on deep reinforcement learning and orthogonal matching pursuit

open access: yesJournal of Applied Science and Engineering
Traditional mobile robot visual image hierarchical matching algorithms can only complete rough matching, which leads to low matching accuracy and long matching time.
Chuanlei Dai, Yuqian Liu, Zhiwei Shi
doaj   +1 more source

Video compression using matching pursuits [PDF]

open access: yesIEEE Transactions on Circuits and Systems for Video Technology, 1999
The use of matching pursuit (MP) to code video using overcomplete Gabor basis functions has recently been introduced. In this paper, we propose new functionalities such as SNR scalability and arbitrary shape coding for video coding based on matching pursuit.
O.K. Al-Shaykh   +4 more
openaire   +1 more source

Scalable Sparse Subspace Clustering by Orthogonal Matching Pursuit

open access: yes, 2016
Subspace clustering methods based on $\ell_1$, $\ell_2$ or nuclear norm regularization have become very popular due to their simplicity, theoretical guarantees and empirical success.
Robinson, Daniel P.   +2 more
core   +1 more source

Greedy sparse decompositions: a comparative study

open access: yesEURASIP Journal on Advances in Signal Processing, 2011
The purpose of this article is to present a comparative study of sparse greedy algorithms that were separately introduced in speech and audio research communities. It is particularly shown that the Matching Pursuit (MP) family of algorithms (MP, OMP, and
Moreau Nicolas   +2 more
doaj  

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