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Electric field signal receiving systems for ground mines

A signal receiving and signal technology, which is applied in the field of mine target detection and remote control, can solve the problems of low target detection sensitivity, sound field changes, water pressure field changes and small magnetic field changes, etc.

Active Publication Date: 2019-05-14
CSIC NO 710 RES & DEV INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, with the advancement of shipbuilding technology and degaussing technology, when the ship target sails in the water, the changes in the sound field, water pressure field, and magnetic field caused by the target are small. The sensitivity of target detection is greatly reduced

Method used

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  • Electric field signal receiving systems for ground mines
  • Electric field signal receiving systems for ground mines
  • Electric field signal receiving systems for ground mines

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Experimental program
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Embodiment 1

[0030] see figure 1 , which is a functional block diagram of an electric field signal receiving system for a bottom mine provided in this embodiment. An electric field signal receiving system for a sunken mine, three receiving units, each receiving unit includes two electrodes, two pre-circuits, a differential circuit, a first filter and a second filter, wherein the same receiving unit The inner electrodes are placed opposite to each other on the same axis, and each electrode is connected to a front circuit, and the electrodes of the three receiving units are distributed in three-axis orthogonal space;

[0031] The working process of each receiving unit is as follows:

[0032] The electrodes are used to receive underwater electric field signals, wherein the electric field signals include the electromagnetic remote control signal of the bottom mine and the ship target electric field signal;

[0033] Optionally, the frequency of the electromagnetic remote control signal is 0.3...

Embodiment 2

[0048] In the above embodiments, the bottom mine identifies the ship target through the electric field signal of the ship target, and only the position of the ship target in the three-axis coordinate system formed by electrodes is obtained. In order to realize the positioning of the ship target in the world coordinate system, based on the above embodiments, this embodiment proposes another electric field signal receiving system for bottom mines.

[0049] An electric field signal receiving system for a bottom mine, which also includes an electronic magnetic compass, a gravity angle sensor and a central processing unit;

[0050] The electronic magnetic compass is used to obtain the azimuth angle of the bottom mine;

[0051] The gravity angle sensor is used to obtain the pitch angle of the bottom mine at the bottom;

[0052] The central processing unit is used to determine the position coordinates of the sunken mine in the world coordinate system according to the azimuth angle a...

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Abstract

The invention provides electric field signal receiving systems for ground mines. Six electrodes which are in triaxial orthogonal distribution form an electrode array. Ship target electric field signals, and electromagnetic remote control signals which are transmitted from a land are received through utilization of the same set of electrode array. Through measurement of potential difference of twopoints in a space electric field on the same axial direction in the same group of electrodes, electric field signals are sensed. After signal conditioning of front end circuits and difference processing of a difference circuit are carried out on the electric field signals, the electric field signals enter post stage filters for frequency division processing, namely, the electromagnetic remote control signals and the ship target electric field signals are distinguished through utilization of difference of the electromagnetic remote control signals and the ship target electric field signals in working bands. The system is not limited by ship target sound field change, water pressure field change and magnetic field change Through utilization of the electric field signals, the ground mines areremotely controlled and ship targets are identified by the ground mines. Remote control stability and a target identification accuracy rate can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of mine target detection and remote control, and in particular relates to an electric field signal receiving system for a bottom mine. Background technique [0002] Bottom mines are mines that sink to the bottom of the water after deployment. According to the amount of charge, bottom mines are divided into large bottom mines, medium bottom mines and small bottom mines. Bottom mines are usually composed of a charge body, a fuze device, and laying accessories, and the fuze device is usually equipped with a single or combined fuze of a magnetic field, sound field, and water pressure field, and is deployed by surface ships, submarines, and aircraft. . Bottom mines have the characteristics of simple overall structure, good concealment, and little influence from currents and wind waves. They can strike surface ships with a depth of no more than 50 to 90 meters, and submarines with a depth of 200 to 300 meters. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/08G01C17/32G01C1/00
Inventor 张恒付继伟赵加鹏刘来连方巍
Owner CSIC NO 710 RES & DEV INST