Journal of South China University of Technology (Natural Science Edition) ›› 2009, Vol. 37 ›› Issue (4): 86-89,110.

• Mechanical Engineering • Previous Articles     Next Articles

Approach to Decoupling of Multi-Dimension Sensing Information Based on Multi-Scale Approximation

Ye Ting-dong  Liu Gui-xiong  Huang Guo-fian  Chen Tie-qun   

  1. School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
  • Received:2008-10-06 Revised:2008-11-18 Online:2009-04-25 Published:2009-04-25
  • Contact: 叶廷东(1976-),男,博士生,讲师,主要从事多维传感信息建模研究. E-mail:yuetd@163.com
  • About author:叶廷东(1976-),男,博士生,讲师,主要从事多维传感信息建模研究.
  • Supported by:

    广东省教育部产学研结合项目(2007A090302039);广州市科技计划项目(200523-190341)

Abstract:

This paper deals with the scale feature calculation and the scale threshold optimization of multi-scale interpolation decoupling. A new approach to the decoupling of multi-dimension sensing information based on multiscale approximation is proposed. The multi-scale approximation of functions is used to rapidly acquire scale features without constructing any sensor eigenfunction, and the scale threshold and the corresponding interpolation methods are determined according to the scale order of sensing information, thus implementing a precise and rapid decoupling. Simulated results show that the proposed calculation method of scale features is simple and direct, and that, when the decoupling precision is set as 0. 5% , the calculated scale threshold reaches 2-4, and the shortest deeoupling time for the threshold is 80ms, with a decoupling error of approximately 0. 4575%.

Key words: sensor, interpolation, decoupling, multi-scale approximation, scale threshold