计算机应用 ›› 2016, Vol. 36 ›› Issue (11): 3229-3233.DOI: 10.11772/j.issn.1001-9081.2016.11.3229

• 行业与领域应用 • 上一篇    下一篇

基于相空间重构的自适应残差修正支持向量回归预测算法

李俊山1,2, 仝奇3, 叶霞2, 许元1   

  1. 1. 东莞理工学院 城市学院, 广东 东莞 523419;
    2. 火箭军工程大学 信息工程系, 西安 710025;
    3. 中国人民解放军96261部队, 河南 灵宝 471700
  • 收稿日期:2016-04-19 修回日期:2016-06-30 出版日期:2016-11-10 发布日期:2016-11-12
  • 通讯作者: 李俊山
  • 作者简介:李俊山(1956-),男,陕西白水人,教授,博士,CCF杰出会员,主要研究方向:故障诊断与维修保障、图像处理、计算机视觉;仝奇(1988-),男,河南开封人,助理工程师,硕士,主要研究方向:电子设备故障诊断;叶霞(1977-),女,江苏南京人,副教授,博士,CCF会员,主要研究方向:指挥信息系统、网络安全;许元(1986-),男,陕西武功人,助教,硕士,主要研究方向:智能检测。
  • 基金资助:
    装备维修科学研究与改革项目。

Adaptive residual error correction support vector regression prediction algorithm based on phase space reconstruction

LI Junshan1,2, TONG Qi3, YE Xia2, XU Yuan1   

  1. 1. City College, Dongguan University of Technology, Dongguan Guangdong 523419, China;
    2. Department of Information Engineering, Rocket Force University of Engineering, Xi'an Shaanxi 710025, China;
    3. 96261 Unit of PLA, Lingbao Henan 471700, China
  • Received:2016-04-19 Revised:2016-06-30 Online:2016-11-10 Published:2016-11-12
  • Supported by:
    This work is partially supported by the Scientific Research and Reform project of Equipment Maintenance.

摘要: 针对模拟电路故障预测存在的非线性时间序列预测问题和传统支持向量回归(SVR)多步预测时出现的误差累积问题,提出了一种基于相空间重构的自适应残差修正SVR预测算法。首先,分析了SVR多步预测方法对时间序列趋势预测的意义和多步预测导致的误差积累问题;其次,将相空间重构技术引入SVR预测中,对表征模拟电路状态的时间序列进行相空间重构,并进而进行SVR预测;然后,在对多步预测过程中产生的误差累积序列进行二次SVR预测的基础上,实现对初始预测误差的自适应修正;最后,对所提算法进行了预测仿真验证。仿真验证和模拟电路的健康度预测实验结果表明,所提算法能有效降低多步预测导致的误差积累,显著提高回归估计精度,更好地预测模拟电路状态的变化趋势。

关键词: 支持向量回归, 多步预测, 误差累积, 相空间重构, 残差

Abstract: Focusing on the problem of nonlinear time series prediction in the field of analog circuit fault prediction and the problem of error accumulation in traditional Support Vector Regression (SVR) multi-step prediction, a new adaptive SVR prediction algorithm based on phase space reconstruction was proposed. Firstly, the significance of SVR multi-step prediction method for time series trend prediction and the error accumulation problem caused by multi-step prediction were analyzed. Secondly, phase space reconstruction technique was introduced into SVR prediction, the phase space of the time series of the analog circuit state was reconstructed, and then the SVR prediction was carried out. Thirdly, on the basis of the two SVR prediction of the error accumulated sequence generated in the multi-step prediction process, the adaptive correction of the initial prediction error was realized. Finally, the proposed algorithm was simulated and verified. The simulation verification results and experimental results of the health degree prediction of the analog circuit show that the proposed algorithm can effectively reduce the error accumulation caused by multi-step prediction, and significantly improve the accuracy of regression estimation, and better predict the change trend of analog circuit state.

Key words: Support Vector Regression (SVR), multi-step prediction, error accumulation, phase space reconstruction, residual

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