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Radiation platform correlation method based on radiation source space positions

A technology of spatial location and radiation source, applied in the field of data fusion and data association technology, can solve problems such as uncertainty and ambiguity of platform identification results

Inactive Publication Date: 2016-07-20
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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Problems solved by technology

Depending on the model and platform affiliation of a single radiation source may lead to ambiguity and uncertainty in platform identification results

Method used

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  • Radiation platform correlation method based on radiation source space positions
  • Radiation platform correlation method based on radiation source space positions
  • Radiation platform correlation method based on radiation source space positions

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Embodiment Construction

[0018] The detailed implementation methods of the above-mentioned process steps are described as follows:

[0019] 1. Combining the spatial clustering method to group and cluster the radiation source positions observed within a period of time.

[0020] To carry out the platform association of multi-radiation source targets, it is first necessary to extract possible radiation source arrays from sensor observations, and this process can be completed by observation clustering. For some commonly used clustering algorithms: simple clustering algorithm based on similarity threshold and minimum distance, K-means clustering method, etc. The simple clustering method is affected by the clustering threshold and clustering center; while the K-means clustering method needs to determine the number of clusters and the initial clustering center, but the number and location of radiation sources in the observation area are unknown. Not applicable to extraction of radiation source arrays. In t...

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Abstract

The invention discloses a radiation platform correlation method based on radiation source space positions, belongs to the technical field of electronic countermeasures and relates to the data correlation technology and the data fusion technology. The method is mainly carried out from the perspective of a space distribution structure of radiation sources on one platform, and through correlation technologies of space clustering, template matching and similarity detection, radiation sources from different platforms are subjected to platform correlation. In combination with a specific context, under the condition that positioning precision is high, positioned radiation source observation values within a period of time are subjected to clustering correlation, and therefore whether radiation source signals at different moments come from the same platform or not is judged. When observation errors are SIGMA, 5SIGMA and 10SIGMA and cluster density is at different values, the correlation accuracy based on the space structure radiation source correlation algorithm is shown in the figures 4-6, the performance of the algorithm is reduced along with increase of the cluster density, when the cluster density is within le-5 (per m<2>), the correlation accuracy is 85% or above, the observation errors are within 35-fold SIGMA, and it can be guaranteed that the correlation accuracy reaches 80%.

Description

technical field [0001] The invention belongs to the technical field of electronic countermeasures, and relates to data association technology and data fusion technology. Background technique [0002] There are not many studies on radiation source platform identification in the existing data, and most of them focus on platform identification based on model identification. The radiation source affiliation database is mainly queried based on the model identification results, and the radiation source correspondence is obtained by reasoning. platform type. This reasoning method is somewhat difficult to implement. In addition, the affiliation relationship between radar radiation sources and large ship platforms is generally not one-to-one correspondence. A type of radar radiation source may be loaded on various types of ship platforms, and a type of ship often has multiple types of radar radiation sources. Depending on the model and platform affiliation of a single radiation so...

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Application Information

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IPC IPC(8): G06F17/30G06K9/62
CPCG06F16/285G06F16/288G06F18/23213
Inventor 魏平周俊李万春任春辉
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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