Title:
MULTICARRIER SIGNAL-BASED LOW-COMPUTATION HYDROACOUSTIC WAKE-UP METHOD
Document Type and Number:
WIPO Patent Application WO/2022/213506
Kind Code:
A1
Abstract:
Disclosed is a multicarrier signal-based low-computation hydroacoustic wake-up method. In the method, first a corresponding multicarrier signal is constructed for a communication node, and absolute value summation is performed, at a receiving end, on a signal within a window and signal arrival detection is performed, then real fast Fourier transform is used to detect the frequency point of a signal multiple times, so as to implement the detection of wake-up. Said method is suitable for accurate wake-up at any distance within a maximum communication distance of two underwater acoustic nodes, features a small amount of computation, and is suitable for a low-power consumption microcontroller. A communicator can be in a low-power consumption sleep state for a long time underwater.
Inventors:
QU FENGZHONG (CN)
LIN ZHE (CN)
HU CHAO (CN)
WEI YAN (CN)
WU YEZHOU (CN)
LIN JIANMIN (CN)
CHEN YING (CN)
LU XUESONG (CN)
FANG QISHENG (CN)
LIN ZHE (CN)
HU CHAO (CN)
WEI YAN (CN)
WU YEZHOU (CN)
LIN JIANMIN (CN)
CHEN YING (CN)
LU XUESONG (CN)
FANG QISHENG (CN)
Application Number:
PCT/CN2021/106243
Publication Date:
October 13, 2022
Filing Date:
July 14, 2021
Export Citation:
Assignee:
UNIV ZHEJIANG (CN)
International Classes:
H04L27/26; H04B10/11; H04B13/02; H04W52/02
Domestic Patent References:
| WO2020113464A1 | 2020-06-11 |
Foreign References:
| CN113098821A | 2021-07-09 | |||
| CN104243369A | 2014-12-24 | |||
| CN113114147A | 2021-07-13 | |||
| CN112217577A | 2021-01-12 | |||
| CN112583495A | 2021-03-30 |
Attorney, Agent or Firm:
HANGZHOU QIUSHI PATENT OFFICE CO., LTD. (CN)
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