A Wide Area Distributed Underwater Acoustic Cooperative Diversity Communication System

A cooperative diversity and communication system technology, applied in the field of underwater acoustic communication, can solve the problems of low speed, short communication distance, unstable underwater acoustic communication, etc., achieve low power consumption, prolong life span, improve transmission capacity and propagation distance capability Effect

Active Publication Date: 2022-05-17
OCEAN UNIV OF CHINA
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a wide-area distributed underwater acoustic cooperative diversity communication system to solve the problems of unstable underwater acoustic communication, low speed and short communication distance in the prior art

Method used

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  • A Wide Area Distributed Underwater Acoustic Cooperative Diversity Communication System
  • A Wide Area Distributed Underwater Acoustic Cooperative Diversity Communication System
  • A Wide Area Distributed Underwater Acoustic Cooperative Diversity Communication System

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Embodiment

[0027] A wide-area distributed underwater acoustic cooperative diversity communication system, such as figure 1 As shown, it includes multiple node buoys and multiple gateway buoys, the gateway buoys are equipped with underwater acoustic modems, the node buoys communicate with the underwater signal transmitter, one node buoy only communicates with one gateway buoy, and one gateway buoy communicates with at least one node buoy Communication, the gateway buoy communicates with the receiving end, the node buoys communicate with each other, and the gateway buoys also communicate with each other; the node buoys communicate with the gateway buoys through the ultrashort wave communication network.

[0028] The communication mode of the wide-area distributed underwater acoustic cooperative diversity communication system of the present invention includes an uplink, that is, the underwater signal transmitter sends the signal to the satellite shore station, and a downlink, that is, the sa...

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Abstract

The invention discloses a wide-area distributed underwater acoustic cooperative diversity communication system. The communication system includes a plurality of node buoys and a plurality of gateway buoys. Both the gateway buoys and underwater user transmitters are equipped with underwater acoustic modems. Node buoys communicate with underwater signal transmitters, one node buoy communicates with only one gateway buoy, one gateway buoy communicates with at least one node buoy, and the gateway buoy communicates with a receiving end. The wide-area distributed underwater acoustic cooperative diversity communication system and communication simulation method improve the reliability of underwater acoustic signal data transmission, and fundamentally improve the transmission capability and propagation distance capability of the underwater communication network.

Description

technical field [0001] The invention relates to the technical field of underwater acoustic communication, in particular to a wide-area distributed underwater acoustic cooperative diversity communication system. Background technique [0002] In recent years, with the increase of human ocean activities, there is a wide demand for underwater acoustic communication in the fields of marine resource exploration, underwater operations, and marine environment monitoring. However, due to the extremely narrow available frequency bandwidth of underwater acoustic signals, the propagation speed of underwater acoustic signals is only about 1500 m / s, resulting in low communication capabilities and large delays; Many complex time-varying and domain-changing factors such as temperature, thermal microstructure caused by turbulence, and sound velocity changes caused by internal waves form the characteristics of the underwater acoustic signal field, such as random fluctuations and scattering, m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B11/00H04B13/02
CPCH04B11/00H04B13/02Y02D30/70
Inventor 吕婷婷张浩周曼丽李昊阳曹源张雨萌杨华
Owner OCEAN UNIV OF CHINA
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