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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/37568

Title: A Quasi-Orthogonal Corelator-based BPNN PN Code Acquisition Scheme for Underwater Acoustic DSSS Communication
Authors: J. Y. Chen;S. W. Leu;C. F. Lin;S. H. Chang
Contributors: 國立臺灣海洋大學:電機工程學系
Date: 2012
Issue Date: 2016-03-21T08:42:37Z
Publisher: Journal of Marine Science and Technology
Abstract: Abstract:This paper proposes a quasi-orthogonal correlator-based
back propagation neural network (BPNN) pseudo-noise (PN)
code acquisition scheme for underwater acoustic direct sequence
spread-spectrum (DSSS) communication. The main
idea is to use short-length quasi-orthogonal correlators for
coarse phase estimation and a BPNN based discriminator for
fine phase calculation. When compared with other neuralnet
based PN code acquisition schemes, the short quasiorthogonal
correlators effectively locate possible phases of the
received signal with high tolerance to interference and require
no full-length correlation. These capabilities have been verified
by extensive computer simulations and the results clearly
show that the proposed scheme has the characteristics that are
highly suitable for the implementation of underwater acoustic
DSSS communication systems.
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/37568
Appears in Collections:[電機工程學系] 期刊論文

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