Title:
UNDERWATER ACOUSTIC COMMUNICATION METHOD AND DEVICE THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/206211
Kind Code:
A1
Abstract:
The present application relates to an underwater communication method and a device thereof, a data packet frame structure thereof in communication transmission comprises: a preamble, a syncword, and a data code. A protective interval is provided between the preamble and the syncword. The method, utilizing a linear frequency modulation signal having different impulse response environments in different band ranges, produces mapping relations corresponding to in-band impulse response characteristics, and employs a Quadrature Phase Shift Keying (QPSK) modulation scheme to perform signal transmission with respect to four LMF signals having different center frequencies and a same modulation frequency and expressing different symbols, a carrier signal of each center frequency being capable of expressing two bits of binary information, thus increasing transmission efficiency. The underwater acoustic communication device of the method also provides the technical effect described above.
Inventors:
HU YAOXING (CN)
ZHAO CHUNLEI (CN)
XU XIQIANG (CN)
ZHAO CHUNLEI (CN)
XU XIQIANG (CN)
Application Number:
PCT/CN2022/076977
Publication Date:
October 06, 2022
Filing Date:
February 19, 2022
Export Citation:
Assignee:
INST OF GEOLOGY AND GEOPHYSICS THE CHINESE ACADEMY OF SCIENCES (CN)
International Classes:
H04L1/00; H04B13/02; H04L27/20
Domestic Patent References:
| WO2020069530A1 | 2020-04-02 |
Foreign References:
| CN113162699A | 2021-07-23 | |||
| CN107682297A | 2018-02-09 | |||
| CN110048795A | 2019-07-23 | |||
| CN105490976A | 2016-04-13 |
Attorney, Agent or Firm:
SHENZHEN KEJIN INTELLECTUAL PROPERTY OFFICE (CN)
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