On the Estimation of Underwater Acoustic Channel Delay-Scale Spreading Function
Authors: 
Yanbo Zhao, Hua Yu, Gang WeiAuthors Info & Claims
Article No.: 36, Pages 1 - 2
Abstract
The delay-scale spreading function of a channel depicts the the effect of multipath delays and temporal/spectral scale changes to the transmitted signal. The underwater acoustic channel is suitable to be modeled as a delay-scale time-varying channel. In our study, methods of estimating the delay-scale spreading function are summarized and compared. In addition, by discretizing the continuous variables of the delay-scale spreading function, the estimation based on wideband deconvolution is derived in terms of matrix manipulation. In the choice of the transmitted signal wave, signals with large fractional frequency and/or large time-bandwidth product are considered. Furthermore, the specific sparsity of the underwater acoustic channel is considered, and a modified orthogonal matching pursuit algorithm is proposed to recover the channel parameters.
References
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N. F. Josso, J. J. Zhang, and et al. On the characterization of time-scale underwater acoustic signals using matching pursuit decomposition. In OCEANS 2009, MTS/IEEE Biloxi-Marine Technology for Our Future: Global and Local Challenges, pages 1--6. IEEE, 2009.
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L. Weiss. Wavelets and wideband correlation processing. IEEE Signal Processing Magazine, 11(1):13--32, Jan 1994.
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Y. Jiang and A. Papandreou-Suppappola. Discrete time-scale characterization of wideband time-varying systems. IEEE Transactions on Signal Processing, 54(4):1364--1375, 2006.
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Information
Published In
November 2014
230 pages
ISBN:9781450332774
DOI:10.1145/2671490
- General Chairs:
- Chiara Petrioli,
- Tommaso Melodia,
- Program Chairs:
- Fumin Zhang,
- Zhengdao Wang,
- Joao Gomes,
- Publications Chair:
- Wencen Wu
Copyright © 2014 Owner/Author.
Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for third-party components of this work must be honored. For all other uses, contact the Owner/Author.
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- SIGMOBILE: ACM Special Interest Group on Mobility of Systems, Users, Data and Computing
- ASA: American Statistical Association
Publisher
Association for Computing Machinery
New York, NY, United States
Publication History
Published: 12 November 2014
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WUWNET '14
WUWNET '14: International Conference on Underwater Networks & Systems
November 12 - 14, 2014
Rome, Italy
Acceptance Rates
WUWNet '14 Paper Acceptance Rate 9 of 27 submissions, 33%;
Overall Acceptance Rate 84 of 180 submissions, 47%
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