Multichannel signal correlation analyzing method and system

A correlation analysis, multi-channel technology, applied in multi-channel programming, resource allocation, complex mathematical operations, etc., can solve problems such as time-consuming, low solution efficiency, and large scale of multi-channel signal data, saving time , the effect of a large number of cores and a small cache
CN106648901AInactive Publication Date: 2017-05-10GUANGDONG UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG UNIV OF TECH
Publication Date
2017-05-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a multichannel signal correlation analyzing method and system. The method comprises the following steps: storing acquired multichannel signal data to an internal memory of a GPU (Graphics Processing Unit); extracting the multichannel signal data from the internal memory of the GPU, parallel solving KT (Kendall's tau) between the signal data of every two channels of the multichannel signal data by utilizing the parallel computing capacity of the GPU, and obtaining the KT corresponding to the multichannel signal data. According to the multichannel signal correlation analyzing method and the multichannel signal correlation analyzing system, the KT for testing the quality of the multichannel signal data is solved on the basis of the GPU; the GPU is parallel, so that the method and the system have the characteristics of little cache, numerous nuclear numbers, simple digital logical computing unit, applicability to mass data processing and the like; therefore, the solving efficiency is improved during an actual process of solving the KT by utilizing the GPU, and a large amount of time is saved.
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Description

technical field

[0001] The invention relates to the technical field of signal analysis, in particular to a multi-channel signal correlation analysis method and system. Background technique

[0002] Correlation analysis originated in the pioneering period of statistics in the 1900s, and is still a research hotspot in the field of statistical signal processing. The so-called correlation is an index that characterizes the strength of the statistical relationship between two random variables or two signals. If one random variable increases (decreases) with the increase (decrease) of the other random variable, then the two random variables satisfy a positive correlation; Large (decrease) and decrease (large), then the two random variables satisfy a negative correlation. In biomedicine, the correlation analysis of multi-channel signals (brain wave, electrocardiogram, etc.) is very important, but in practical applications, the collected data will inevitably be interfered by noise...

Claims

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