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Signal processing method and system for underwater communication and electronic equipment

A signal processing and optical communication technology, applied in transmission systems, optical transmission systems, short-distance systems, etc., can solve problems such as poor stability and low transmission error tolerance rate, and achieve improved stability, increased error tolerance rate, and reduced DC components Effect

Active Publication Date: 2021-08-24
武汉船舶通信研究所
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The stability of the current underwater optical communication system is poor, and the transmission error tolerance rate is low

Method used

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  • Signal processing method and system for underwater communication and electronic equipment
  • Signal processing method and system for underwater communication and electronic equipment
  • Signal processing method and system for underwater communication and electronic equipment

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Embodiment Construction

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0036] In the following introduction, the terms "first" and "second" are only used for the purpose of description, and should not be understood as indicating or implying relative importance. The following description provides multiple embodiments of the present invention, and different embodiments can be replaced or combined in combination, so the present invention can also be considered to include all possible combinations of the same and / or different embodiments described. Thus, if one embodiment contains features A, B, C, and another embodiment contains features B, D, then the invention should also be considered to include all other possible combinations containing one or more of A, B, C, D Although this embodiment may not be clearly written in the following content.

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Abstract

The invention discloses a signal processing method and system for underwater communication and electronic equipment, and the method comprises the steps: enabling a first terminal to receive to-be-transmitted data, carrying out the format conversion of the to-be-transmitted data, and obtaining converted data; after frame synchronization processing is carried out on the converted data, carrying out the Manchester coding on the processed data, and obtaining and sending coded data to the second terminal; after the second terminal receives the coded data, performing Manchester decoding on the coded data and performing frame synchronization search on the decoded data to obtain converted data; and performing format inverse conversion on the converted data to obtain data to be transmitted. According to the invention, the error-tolerant rate of the system is improved through error correction coding and decoding and addition of the synchronization sequence; the system is pre-equalized through 8B / 10B and Manchester coding and decoding, the direct current component of the system is reduced, the stability of the system is improved, and the error-tolerant rate is also remarkably improved.

Description

technical field [0001] The present application relates to the technical field of underwater optical communication, and in particular, to a signal processing method for underwater communication. Background technique [0002] Underwater optical communication is a communication method that transmits information through water media, and its information carrier is light, which is modulated by pulse digital codes. Due to the absorption and scattering of seawater, the realization of underwater optical communication technology will be much more difficult than that of space optical communication technology. The current underwater optical communication system has poor stability and low transmission error tolerance rate. Contents of the invention [0003] In order to solve the above problems, an embodiment of the present application provides a signal processing method for underwater communication. [0004] In the first aspect, the embodiment of the present application provides a si...

Claims

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Application Information

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IPC IPC(8): H04B10/516H04B10/60H04B10/116H04B10/80
CPCH04B10/516H04B10/60H04B10/116H04B10/80
Inventor 万梓傲袁进刚彭汉宫鹏飞肖云周金荣费礼李亚平文柯江桂英
Owner 武汉船舶通信研究所
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