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Passive multi-station multi-target positioning method based on DBSCAN

A multi-target positioning and target technology, applied in the field of electronic countermeasures, achieves good results and simple methods

Active Publication Date: 2020-01-10
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the DBSCAN clustering method is less studied in passive positioning, and it is a direction worthy of research.

Method used

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  • Passive multi-station multi-target positioning method based on DBSCAN
  • Passive multi-station multi-target positioning method based on DBSCAN
  • Passive multi-station multi-target positioning method based on DBSCAN

Examples

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Embodiment Construction

[0029] The present invention is described in detail below in conjunction with specific examples:

[0030] This example uses matlab and pathon to verify the above-mentioned passive multi-station multi-target positioning method based on DBSCAN. For the sake of simplicity, the following assumptions are made for the algorithm model:

[0031] 1) All observation stations and targets are in the XY plane;

[0032] 2) All engineering errors are added to the angle error;

[0033] 3) Assume that the target is stationary or moving at a very low speed;

[0034] 4) The line of sight of the same target comes from different observation stations, and two or more lines of sight of the same radiation source cannot come from the same observation station;

[0035] 5) One measurement value of one observation station only corresponds to one target.

[0036] Simulation scenario one:

[0037] Assuming that the radiation source area is a rectangular area of ​​100km×80km, 8 observation stations are ...

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Abstract

The invention belongs to the technical field of electronic countermeasures, and particularly relates to a passive multi-station multi-target positioning method based on DBSCAN. The method provided bythe invention mainly comprises: firstly, determining an observation line of sight by combining angle information relative to a target measured an observation station within the own position information of the observation station, then obtaining the location of an intersection of all lines of sight according to the observation line of sight, finding out a cluster formed by the intersections in thevicinity of various targets through a density-based DBSCAN clustering method, and finally realizing multi-target positioning through the central location of the found cluster. The passive multi-station multi-target positioning method provided by the invention has the beneficial effects that positioning estimation can be effectively performed on multiple targets through the angle information measured by multiple observation stations and the own position of the observation stations, the method is simple, and the effect is good.

Description

technical field [0001] The invention belongs to the technical field of electronic countermeasures, and in particular relates to a DBSCAN-based passive multi-station multi-target positioning method. Background technique [0002] In modern electronic information warfare, the most important thing is the competition for electromagnetic space between the enemy and the enemy, as well as the detection and monitoring of the opponent's key targets, so as to obtain information such as the strategic deployment and platform types of the enemy's units. Therefore, in the field of electronic countermeasures, passive positioning technology is playing an increasingly important role in improving electronic combat capabilities due to its many advantages such as long operating distance, concealed reception, strong anti-interference ability, and not easy to be detected by the opponent. In passive positioning, using angle information for target positioning is a very widely used positioning method...

Claims

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Application Information

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IPC IPC(8): G01S5/04G01S5/14G06K9/62
CPCG01S5/04G01S5/14G06F18/2321
Inventor 李万春祝晟玮王丽邹炜钦
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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