Journal of Shanghai University(Natural Science Edition) ›› 2022, Vol. 28 ›› Issue (3): 427-439.doi: 10.12066/j.issn.1007-2861.2379

• Data Collection, Database and Data Processing • Previous Articles     Next Articles

Kalman filter based method for processing small noisy sample data

LIU Fen1, FAN Hongqiang2, LÜ Tao3, LI Qian2,4, QIAN Quan1,3,5()   

  1. 1. School of Computer Engineering and Science, Shanghai University, Shanghai 200444, China
    2. School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
    3. Center of Materials Informatics and Data Science, Materials Genome Institute, Shanghai University, Shanghai 200444, China
    4. National Engineering Research Center for Magnesium Alloys, School of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
    5. Zhejiang Laboratory, Hangzhou 311100, Zhejiang, China
  • Received:2022-03-15 Online:2022-06-30 Published:2022-05-27
  • Contact: QIAN Quan E-mail:qqian@shu.edu.cn

Abstract:

A small sample noisy data processing method based on Kalman filter and extended Kalman filter has been proposed. The core idea was to establish a system model using physical models or empirical formula, then used the system model to predict the model data, and finally used the observation data to correct the model data and achieve the effect of smoothing data noise. Experimental results showed that when using the autoregressive integrated moving average (ARIMA) model and random forest (RF) model to predict the corrosion weight gain of weather steel BC500, the coefficient of determination $R^{2}$ was increased by an average of 6.4% after Kalman filter denoising, while the $R^{2}$ was increased by an average of 4.9% after extended Kalman filter. These results verified the effectiveness of the proposed methods.

Key words: Kalman filter, extended Kalman filter, data denoising, small samples, corrosion data

CLC Number: