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Wide-area distributed underwater acoustic cooperative diversity communication system

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

Active Publication Date: 2022-01-04
OCEAN UNIV OF CHINA
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  • Summary
  • 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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  • Wide-area distributed underwater acoustic cooperative diversity communication system
  • Wide-area distributed underwater acoustic cooperative diversity communication system
  • 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, which comprises a plurality of node buoys and a plurality of gateway buoys, the gateway buoys and an underwater user transmitting terminal are provided with underwater acoustic modems, the node buoys communicate with an underwater signal transmitting terminal, and the underwater signal transmitting terminal communicates with the gateway buoys. One node buoy is only communicated with one gateway buoy, one gateway buoy is communicated with at least one node buoy, and the gateway buoys are communicated with a receiving end. According to the wide-area distributed underwater acoustic cooperative diversity communication system and the communication simulation method, the reliability of underwater acoustic signal data transmission is improved; and the transmission capability and the propagation distance capability of the underwater communication network are fundamentally improved.

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 Applications(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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