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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: 2022-08-05
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • 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] In this example, matlab and pathon are used 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 on 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 sight lines of the same target come from different observation stations, and there cannot be two or more sight lines of the same radiation source from the same observation station;

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

[0036] Simulation scene one:

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

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Abstract

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. The method of the invention mainly determines the observation line of sight through the angle information relative to the target measured by the joint observation station and the position information of the observation station itself, and then obtains the intersection positions of all the lines of sight according to the observation line of sight through the density-based DBSCAN clustering method. Find the clusters formed by the intersections near each target, and finally achieve multiple target positioning by finding the center position of the clusters. The beneficial effects of the present invention are that the present invention can effectively perform positioning estimation on multiple targets through the angle information measured by multiple observation stations and the positions 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 passive multi-station multi-target positioning method based on DBSCAN. Background technique [0002] In the modern electronic information warfare, the most critical point is the competition for the electromagnetic space between the enemy and the enemy, and the detection and monitoring of the other's key targets, so as to obtain information such as the strategic deployment and platform type of the enemy units. Therefore, in the field of electronic countermeasures, passive positioning technology plays an increasingly important role in improving electronic warfare capabilities due to its long range of action, concealed reception, strong anti-jamming ability and not easy to be detected by the opponent. In passive positioning, the use of angle information for target positioning is a very widely used positioning method. However, in the case of multi-st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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