Electromagnetic wave transmission system crossing seawater-air interface and method thereof

A transmission system and electromagnetic wave technology, which is applied in the fields of marine engineering, marine environment monitoring, and underwater radio communication. It can solve problems such as increased propagation distance, low communication rate, and large interface impact, and achieves low cost, simple maintenance, and enhanced node capabilities. Effect

Active Publication Date: 2015-05-13
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0009] In order to overcome the serious shortcomings of existing underwater wireless communication methods, such as poor real-time performance, large interface influence, poor concealment, and low communication rate, the present invention proposes an electromagnetic wave transmission system and method across the seawater-air interface

Method used

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  • Electromagnetic wave transmission system crossing seawater-air interface and method thereof
  • Electromagnetic wave transmission system crossing seawater-air interface and method thereof
  • Electromagnetic wave transmission system crossing seawater-air interface and method thereof

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Embodiment Construction

[0034] Now in conjunction with embodiment, accompanying drawing, the present invention will be further described:

[0035] The idea of ​​the present invention is to use electromagnetic waves based on sea surface side wave propagation to make up for the shortcomings of traditional wired methods (such as cables or optical cables), wireless methods (such as underwater acoustic channels), and sea surface relay methods (such as radio buoys) when transmitting underwater acoustic signals. .

[0036] When the electromagnetic wave propagates directly in seawater, it will produce huge attenuation, and the higher the frequency, the greater the attenuation; but when the electromagnetic wave propagates in the seawater-air two-layer medium, there is such a side wave component, assuming that the radiation source is located in seawater , the electromagnetic wave generated by it propagates vertically upward from the field source to the seawater-air interface, and then horizontally propagates f...

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Abstract

The invention relates to an electromagnetic wave transmission system crossing seawater-air interface and a method thereof; the system comprises one or more underwater sound-electromagnetic wave subsurface buoys and a monitor platform; the underwater sound-electromagnetic wave subsurface buoys convert underwater sound signals of underwater device received by underwater sound sensors into electromagnetic signals at first; the electromagnetic signals are mainly received by being transmitted to the monitor platform via a lateral wave propagation path of the electromagnetic wave in a medium having a smaller conductivity; in return, the electromagnetic wave control signals transmitted by the monitor platform are transmitted to the underwater sound-electromagnetic wave subsurface buoys via similar links.

Description

technical field [0001] The invention belongs to the technical fields of marine engineering, marine environment monitoring and underwater radio communication, and specifically relates to an electromagnetic wave transmission system and method across the seawater-air interface, which uses electromagnetic waves to realize concealment and safety of underwater signals and cross the seawater-air interface. Efficient method for wireless transmission. Background technique [0002] Technical means such as underwater navigation and communication, cross-interface transmission of information and data in the ocean, real-time monitoring of the marine environment, ports and coastlines are of great value to the development of the national economy and military applications. They urge people to study the safe, real-time and effective transmission of information in seawater, seawater-air interface, and atmosphere with suitable carriers. Future marine development needs to build an underwater wi...

Claims

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Application Information

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IPC IPC(8): H04B13/02H04B10/11
Inventor 杨坤德王宏磊郑琨马远良
Owner NORTHWESTERN POLYTECHNICAL UNIV
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