Articles


Document Type
Journal article (JA)
Title
Modulation recognition of non-cooperation underwater acoustic communication signals using principal component analysis
Author
Jiang, Wei-hua(1); Tong, F.(1); Dong, Yang-ze(2); Zhang, Gang-qiang(2)
Address
(1) Key Laboratory of Underwater Acoustic Communication and Marine Information Technology Ministry of Education, Xiamen University, Xiamen, China; (2) National Key Laboratory of Science and Technology on Underwater Acoustic Antagonizing, Shanghai, China
RPAddress
Xiamen Univ, Minist Educ, Key Lab Underwater Acoust Commun & Marine Informa, Xiamen, Peoples R China.
Email
ResearchID
ORCID
Journal
Applied Acoustics
Publisher
Elsevier Ltd
ISSN
0003-682X
Published
2018-09, 138:209-215.
JCR
ImpactFactor
ISBN
Fund_Code
National Nature Science Foundation of China [11274259, 11574258]
HYMC
HYDD
HYKSRQ
HYJSRQ
HYLWLB
HYJB
Keywords
Acoustic noise - Classification (of information) - Extraction - Modulation - Neural networks - Signal to noise ratio - Spectrum analysis - Underwater acoustics
Abstract
The modulation classification of the non-cooperation underwater acoustic (UWA) communication signals is extremely challenging due to the adverse UWA channel transmission characteristics and low signal to noise ratio (SNR), which lead to considerable impairments of the signal features. In this paper, the principal component analysis (PCA) is proposed for efficient extraction of the power spectra and square spectrum features of UWA signals at the presence of multipath, Doppler, and noise induced in UWA channels. The employment of PCA enables extraction of the principal components associated with different modulation mode as the input vector of classier, thus reducing the feature dimension and suppressing the influence of UWA channels and environmental noise. With the features obtained by PCA, an artificial neural network (ANN) classifier is adopted for modulation recognition of UWA communication signals. The experimental modulation classification results obtained with field signals in 4 different underwater acoustic channels show that the proposed PCA based modulation recognition method outperforms the classifier using classic features in terms of classification performance and noise tolerance. ? 2018 Elsevier Ltd
WOS Categories
Acoustics
Accession Number
WOS:000433269400022
EI收录号
20181705037886
DOI
10.1016/j.apacoust.2018.03.033
ESI_Type
PHYSICS
Collection
SCIE, EI

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