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A target detection method and system based on spatio-temporal information fusion

A target detection, space-time technology, applied in the field of signal processing, can solve the problems of large amount of calculation and low reliability, and achieve the effect of reducing output evidence, improving efficiency, and improving recognition accuracy.

Inactive Publication Date: 2020-09-18
PLA STRATEGIC SUPPORT FORCE INFORMATION ENG UNIV PLA SSF IEU
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Problems solved by technology

[0004] The purpose of the present invention is to provide a target detection method and system of spatio-temporal information fusion to solve the problems of large amount of calculation and low reliability caused by no screening of evidence in the current process of spatio-temporal information fusion target detection

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  • A target detection method and system based on spatio-temporal information fusion
  • A target detection method and system based on spatio-temporal information fusion
  • A target detection method and system based on spatio-temporal information fusion

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Embodiment Construction

[0034] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0035] On the basis of the existing recursive centralized spatio-temporal information fusion model, the target detection method of spatio-temporal information fusion of the present invention adds a "logic switch", such as figure 2 As shown, the "logic switch" is used to screen the evidence according to the correlation coefficient of each evidence, block the fusion process of the evidence that is unfavorable to the fusion result, eliminate the evidence with poor classification effect or poor correlation of evidence, and only keep Strong evidence and k-1 time fusion information enter the fusion process. The specific implementation of the target detection method of the present invention will be described in detail below by taking the identification of individual radar radiation sources as an example.

[0036] 1. Extract features.

[0037] Obta...

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Abstract

The invention relates to a target detection method and system for spatio-temporal information fusion, belonging to the technical field of signal processing. Before the output evidence is fused, the present invention first screens each output evidence, and eliminates the evidence with poor classification effect or poor evidence correlation according to the correlation between each output evidence, preventing invalid or unsatisfactory classification results from entering The fusion process enhances the support of the output evidence for the correct target and relatively reduces the support for other targets. On the one hand, the present invention reduces the amount of calculation and improves efficiency; on the other hand, it accelerates the aggregation of fusion results toward the hypothesis set, reduces the output evidence of the target to be recognized due to the unfavorable influence of individual basic probability assignment functions, and reduces misjudgment or omission. The risk of judgment is improved, and the recognition accuracy is improved.

Description

technical field [0001] The invention relates to a target detection method and system for spatio-temporal information fusion, belonging to the technical field of signal processing. Background technique [0002] Dempster-Shafer (DS) evidence theory has a strong theoretical foundation, it can not only deal with the uncertainty caused by randomness, but also deal with the uncertainty caused by ambiguity, and can realize the attribute fusion of the decision-making layer, with a low amount of calculation , can be well applied to the spatio-temporal information fusion process. The recursive centralized spatio-temporal model is a typical information fusion model, which directly fuses the output evidence of six classifiers including envelope frontier, instantaneous frequency, unintentional phase modulation, unintentional frequency modulation, bispectral slice and autoregressive model (the fusion block diagram is shown in figure 1 shown). In this system, the target recognition infor...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/02G06K9/62
CPCG01S7/02G06F18/257G06F18/254
Inventor 邢小鹏陈世文黄洁
Owner PLA STRATEGIC SUPPORT FORCE INFORMATION ENG UNIV PLA SSF IEU
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