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Underwater target tracking method based on electromagnetic field feature multi-information fusion

A multi-information fusion and underwater target technology, applied in the field of underwater target detection, to achieve the effect of improving tracking accuracy and high tracking accuracy

Active Publication Date: 2021-03-19
WUHAN SECOND SHIP DESIGN & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is still a lack of methods for locating and tracking underwater targets based on electromagnetic field characteristics

Method used

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  • Underwater target tracking method based on electromagnetic field feature multi-information fusion
  • Underwater target tracking method based on electromagnetic field feature multi-information fusion
  • Underwater target tracking method based on electromagnetic field feature multi-information fusion

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Embodiment Construction

[0021] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0022] The underwater target tracking method based on multi-information fusion of electromagnetic field features in this embodiment includes:

[0023] Multiple magnetic field sensors and electric field measurement electrodes are arranged, and multiple magnetic field sensors and electric field measurement electrodes are used to collect magnetic field and electric field signals at different positions, and analyze and obtain the magnetic field and electric field characteristic quantities at different positions to realize the positioning and tracking of underwater targets.

[0024] Further, the method includes the following steps:

[0025] Step 1: Use the magnetic field sensor and electric field measuring electrode to collect the magnetic field and electric field data at each position in the target area in real time, and at any sampling time, judg...

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Abstract

The invention relates to an underwater target tracking method based on electromagnetic field feature multi-information fusion. The method comprises the steps of arranging a plurality of magnetic fieldsensors and electric field measurement electrodes in an array mode, obtaining the three-direction coordinate position initial solution of an underwater target, a magnetic dipole moment and an electric dipole moment through the calculation of a gradient positioning algorithm, establishing a state equation and an observation equation of the underwater target based on the underwater target electromagnetic field model, and performing nonlinear state estimation of the underwater target by adopting a particle swarm filtering algorithm to realize dynamic tracking of the underwater target. The methodis suitable for the field of underwater safety alert, and is good in algorithm adaptability and high in tracking precision.

Description

technical field [0001] The invention relates to the technical field of underwater target detection, in particular to a method for locating and tracking the target in the water by utilizing the electromagnetic field characteristics of the target. Background technique [0002] In order to achieve the security of our country's bay or coastal military fortresses, important ports, and important waters, it is urgent to build an underwater detection and positioning system to realize the normalization of underwater security. [0003] Underwater, it can detect and locate through the acoustic field, electromagnetic field and optical characteristics of underwater targets, so as to realize underwater security warning. For most underwater targets, they are made of metal with a fixed magnetic field, and at the same time, they will generate an induced magnetic field under the action of the geomagnetic field, and the self-corrosion and corrosion protection systems between different metals w...

Claims

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Application Information

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IPC IPC(8): G01C21/20G01V3/08G01V3/38G06K9/62
CPCG01C21/20G01V3/08G01V3/38G06F18/253Y02A90/30
Inventor 王建勋徐林王作帅肖涵琛左超耿攀杨勇张平杨文铁余定峰郑攀峰张国友周彤周诗颖杨帅
Owner WUHAN SECOND SHIP DESIGN & RES INST
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