Research on the Recursive Method of Real Time Variance Calculation for Non-Zero Mean Value Data

Jing Liu; Xiao Gang Pan

doi:10.4028/www.scientific.net/AMM.738-739.469

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 738-739Research on the Recursive Method of Real Time...

Research on the Recursive Method of Real Time Variance Calculation for Non-Zero Mean Value Data

Abstract:

In the area of manufacturing and industrial engineering, variance calculation is the basic method to monitor the performance of instrument. The new improved method of real-time variance calculation is put forward in this paper to calculate the variance of experiment data, despite of zero or non-zero mean value data, Then it is possible to calculate the variance of any kind data at real time without save the historical data. Experiment results shows that the new method for calculate the variance can greatly improve the calculating efficiency with high precision..

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Periodical:

Applied Mechanics and Materials (Volumes 738-739)

Pages:

469-474

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.738-739.469

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Online since:

March 2015

Authors:

Jing Liu*, Xiao Gang Pan

Keywords:

Gliding Windows Method, Real-Time, Variance Calculation

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