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Title:
SUB-BAND SELECTION ACTIVATION-BASED MULTI-BAND HYPERBOLIC FREQUENCY MODULATION SPREAD SPECTRUM UNDERWATER ACOUSTIC COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2019/101032
Kind Code:
A1
Abstract:
Disclosed by the present invention is a sub-band selection activation-based multi-band hyperbolic frequency modulation spread spectrum underwater acoustic communication method. The present invention discloses: dividing the available bandwidth of an underwater acoustic system into a plurality of sub-bands, performing hyperbolic frequency modulation on each of the sub-bands respectively, and performing spread spectrum modulation on the plurality of sub-bands within the same frequency modulation cycle, thus implementing multi-band parallel transmission. Hence, during each frequency modulation cycle, the divided plurality of sub-bands is grouped, and each sub-band group activates different sub-bands for transmission according to different options for transmitting data. Compared to other underwater acoustic hyperbolic frequency modulation communication solutions, the present invention further improves the frequency band utilization of the system, and the energy efficiency is also improved.

Inventors:
YU HUA (CN)
ZHOU YONGJIN (CN)
JI FEI (CN)
CHEN FANGJIONG (CN)
Application Number:
PCT/CN2018/116144
Publication Date:
May 31, 2019
Filing Date:
November 19, 2018
Export Citation:
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Assignee:
UNIV SOUTH CHINA TECH (CN)
International Classes:
H04B13/02
Domestic Patent References:
WO2005055442A22005-06-16
Foreign References:
CN107947868A2018-04-20
CN102170314A2011-08-31
CN102571677A2012-07-11
CN103944848A2014-07-23
CN105323198A2016-02-10
Other References:
ZHAO, YANBO: "Parameter Estimation and Applications f( Wideband Underwater Acoustic Channels", ELECTRONIC TECHNOLOGY & INFORMATION SCIENCE CHINA DOCTORAL DISSERTATIONS FULL-TEXT DATABASE, 15 May 2017 (2017-05-15)
Attorney, Agent or Firm:
GUANGZHOU HUAXUE INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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