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Multiphase system signal flow dynamic data reconstruction method

A multi-phase system and dynamic data technology, applied in the direction of spectrum analysis/Fourier analysis, etc., can solve the problems of unsatisfactory data analysis results and unbalanced amplitude, etc., and achieve the effect of simple algorithm and easy implementation

Inactive Publication Date: 2016-12-07
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

These methods are affected by phase and amplitude imbalances, harmonics, and noise between phase and phase signal streams, which makes the data analysis results unsatisfactory.

Method used

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  • Multiphase system signal flow dynamic data reconstruction method
  • Multiphase system signal flow dynamic data reconstruction method
  • Multiphase system signal flow dynamic data reconstruction method

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Embodiment Construction

[0026] In order to make the present invention easier to understand, the content of the present invention will be explained more clearly and completely through specific examples below. Apparently, the described embodiments are only some, not all, embodiments of the present invention, and are not limited to its formula form. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0027] like figure 1 As shown, a method for reconstructing dynamic data of signal flow in a multiphase system of the present invention specifically includes:

[0028] Step 1, determine the period L of the signal flow in the polyphase system;

[0029] Step 2, determine the data matrix of the multiphase system signal flow in the past one cycle at the sampling time k as follows:

[0030] I = i ...

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Abstract

The invention discloses a periodic signal flow dynamic data reconstruction method applied to a multiphase system, and belongs to the field of data mining. The method comprises the steps that the period of signal flows in the multiphase system is determined, and the signal flow data are dynamically reconstructed in real time online so as to eliminate phase difference, amplitude imbalance, harmonic noise and other interference existing in the signal flows. The method is suitable for preprocessing of analysis, computation and transformation of all the signal flows of the multiphase system so that the complexity of the signal processing technology can be greatly simplified.

Description

technical field [0001] The invention relates to the field of data mining, in particular to a method for reconstructing dynamic data of signal flow in a multiphase system. Background technique [0002] Multiphase system is a common industrial system, and its periodic signal flow is often used to analyze system characteristics. The traditional method is to directly use signal processing technology to directly analyze the data characteristics, such as Fourier transform, wavelet transform, empirical mode analysis and so on. These methods are affected by the unbalanced phase and amplitude, harmonics, and noise between the phase and phase signal streams, which make the data analysis results unsatisfactory. Contents of the invention [0003] In view of the above defects of the prior art, the present invention proposes to add signal preprocessing technology before the traditional signal processing technology, that is, the dynamic reconstruction of signal flow data, so as to elimi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R23/16
CPCG01R23/16
Inventor 赵金吴锋
Owner HUAZHONG UNIV OF SCI & TECH
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