Proceedings of the 2012 2nd International Conference on Computer and Information Application (ICCIA 2012)

A Novel Approach to Improve the Frequency Resolution Based on Sparse Representation

Authors
Wenming Gui, Ruifan Liu, Guangyi Bai, Xi Shao
Corresponding Author
Wenming Gui
Available Online May 2014.
DOI
10.2991/iccia.2012.137How to use a DOI?
Keywords
Fast Fourier Transform,Matching Pursuit, sparse represantion, frequency resolution, MPTK,
Abstract

How to improve the frequency resolution, especially in the low frequency bands, is an important problem for many applications. A novel approach based on sparse representation was proposed for this problem. In this work, we first discussed the design of the over-completed dictionary with the high frequency resolution, and then Matching Pursuit was advised to perform sparse decomposition using Matching Pursuit Tool Kit. Next, the frequency information was extracted from the code book of the results of Matching Pursuit. Finally, the experiments demonstrated the improvement of the frequency resolution for the proposed approach.

Copyright
© 2013, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2012 2nd International Conference on Computer and Information Application (ICCIA 2012)
Series
Advances in Intelligent Systems Research
Publication Date
May 2014
ISBN
978-94-91216-41-1
ISSN
1951-6851
DOI
10.2991/iccia.2012.137How to use a DOI?
Copyright
© 2013, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Wenming Gui
AU  - Ruifan Liu
AU  - Guangyi Bai
AU  - Xi Shao
PY  - 2014/05
DA  - 2014/05
TI  - A Novel Approach to Improve the Frequency Resolution Based on Sparse Representation
BT  - Proceedings of the 2012 2nd International Conference on Computer and Information Application (ICCIA 2012)
PB  - Atlantis Press
SP  - 566
EP  - 569
SN  - 1951-6851
UR  - https://doi.org/10.2991/iccia.2012.137
DO  - 10.2991/iccia.2012.137
ID  - Gui2014/05
ER  -