Method for fusing multi-physical-domain feature information

Abstract

The invention discloses a method for fusing multi-physical-domain feature information, and the method comprises the following steps of: (1) obtaining required apriori information in an engineering event through a measuring tool, removing redundant information and obtaining an optimized feature information set; (2) converting each feature information value Xi in the optimized feature information into an interval form; (3) solving a broad sense Hidden Markov initial model; (4) obtaining an optimal model according to the obtained broad sense Hidden Markov initial model alpha; and (5) solving theoptimum broad sense Hidden Markov model of each single-physical-domain, after synthesizing combined broad sense interval, checking the propability distribution according to a coupling relationship among various single-physical-domain optimum model parameters, and finishing and obtaining the fusion of the multi-physical-domain feature information. The method can be used for establishing coupling relationship among the multi-physical-domain parameters in different engineering and effectively solving the fusion problem of the multi-physical-domain feature information.

Description

technical field [0001] The invention relates to the field of information processing, in particular to a method for fusing feature information of multiple physical domains. Background technique [0002] Multi-physical domain feature information fusion is the most important part of engineering information processing. It uses computer and other technologies to automatically analyze and synthesize all observation information to complete decision-making and estimation tasks. The fusion of multi-physical domain feature information often encounters two types of problems, one is the uncertainty of feature information caused by the inaccuracy of measurement tools, the incompleteness and randomness of information, and the lack of prior knowledge; The second is how to integrate characteristic information of multi-physics domains (such as vibration, temperature, noise and cutting force, etc.) in engineering information processing. [0003] The uncertainty of characteristic information ...

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Problems solved by technology

[0006] The purpose of the present invention is to address the shortcomings of existing engineering information processing research methods, and provide a multi-physics domain feature information fusion method, which can not only solve the problem of feature information uncertainty in engineering, but also solve the multi-physics domain feature information fusion problem at the same time

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