Shandong Science ›› 2011, Vol. 24 ›› Issue (6): 71-74.doi: 10.3976/j.issn.1002-4026.2011.06.018

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Application of Digital Filtering and Wavelet Analysis in the  Measurement of Ocean Current Velocity

 LIU Meng-De, DU Li-Bin, REN Guo-Xing   

  1. 1.Harbin Institute of Technology, Harbin 150001, China; 2.Shandong Provincial Key Laboratory of Ocean Environment Monitoring Technology, Institute of Oceanographic Instrumentation, Shandong Academy of Sciences, Qingdao 266001,China
  • Received:2011-06-29 Online:2011-12-20 Published:2011-12-20

Abstract:

     This paper employs infinite impulse response (IIR) digital filtering and Haar wavelet analysis to suppress the noise in the original ocean current velocity measurement signal. Experiments show that this method can improve the accuracy and stability of measurement results.

Key words: digital filtering, wavelet analysis, noise, ocean current velocity

CLC Number: 

  • TP212.1