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An anti-interference processing method for underwater mobile communication

A processing method and mobile communication technology, which is applied in the field of anti-interference processing for underwater mobile communication, and can solve problems such as reducing communication efficiency and accurate transmission of unfavorable information

Active Publication Date: 2018-11-09
常熟海量声学设备科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The detected signal is mixed with a lot of interference and noise signals, such as reverberation and system noise, which is not conducive to the accurate transmission of information and reduces the communication efficiency

Method used

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  • An anti-interference processing method for underwater mobile communication
  • An anti-interference processing method for underwater mobile communication
  • An anti-interference processing method for underwater mobile communication

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Embodiment Construction

[0037] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0038] The invention provides an anti-interference processing method for underwater mobile communication, which is suitable for equipment for underwater mobile communication, and the structure of the equipment can be matched with figure 1 and figure 2 As shown, it includes a water monitoring machine 0 and a transceiving and displacing transducer 2, wherein the water monitoring machine 0 is generally placed on the shore for water operations, and the water monitoring machine 0 includes a signal acquisition module 2, a signal receiving module 3, an ARM Embedded processing module 11, DSP high-speed processing module 4 and display 12, signal acquisition module 2 includes power amplifier circuit 7, filter 8 and A / D converter 9 connected in sequence, signal receiving module 3 includes D / A conversion connected in sequence Device 15, filter 16 and...

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Abstract

The invention discloses an anti-interference processing method for underwater mobile communication. The anti-interference processing method comprises the steps of receiving signal by using a nested array which is composed of two adjacent uniform linear arrays formed by N sonars; sampling underwater acoustic signals by using the nested array so as to acquire array output signals; calculating a virtual array received data vector according to the array output signals; carrying out sparse reconstruction on the received signals by using a convex optimization algorithm according to a compressed sensing principle so as to construct a super-complete base; solving a sparse constraint equation by using a convex optimization method so as to acquire an estimated value; acquiring an estimated value of an interference DOA according to the estimated value, constructing an interference subspace matrix and an orthogonal space projection matrix thereof, and completing interference suppression for original received signals before vectorization by using a method of orthogonal projection. The method disclosed by the invention can improve the communication efficiency and save the communication cost, and has wide application values.

Description

technical field [0001] The invention belongs to the technical field of underwater acoustic engineering, in particular to an anti-interference processing method for underwater mobile communication. Background technique [0002] Underwater sound is one of the important carriers for transmitting information. For now, underwater sound is still the most effective means of transmitting information underwater. In order to carry out underwater mobile communication better, it is particularly important to suppress the noise in the underwater acoustic signal, so we need to continuously improve the underwater mobile communication equipment to achieve the purpose of improving communication efficiency. [0003] The traditional underwater mobile communication is to receive navigation commands, dynamic positioning detection and collect information through underwater robots, and it is completed jointly with the underwater acoustic communication system on the shore. The detected signal is m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B11/00H04B13/02H04L25/03
CPCH04B11/00H04B13/02H04L25/03891H04L25/03987
Inventor 王彪严雨霞杨奕飞戴跃伟
Owner 常熟海量声学设备科技有限公司
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