Applied Mathematics and Mechanics (English Edition) ›› 2013, Vol. 34 ›› Issue (1): 1-14.doi: https://doi.org/10.1007/s10483-013-1648-8

• 论文 •    下一篇

Improved precise integration method for differential Riccati equation

高强1,谭述君2,钟万勰1,张宏斌1   

  1. 1. State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Faculty of Vehicle Engineering and Mechanics, Dalian University of Technology, Dalian 116024, Liaoning Province, P. R. China;
    2. School of Aeronautics and Astronautics, Dalian University of Technology, Dalian 116024, Liaoning Province, P. R. China
  • 收稿日期:2012-09-20 修回日期:2012-10-18 出版日期:2013-01-03 发布日期:2013-01-03
  • 通讯作者: Hong-wu ZHANG E-mail:zhanghw@dlut.edu.cn
  • 基金资助:

    the National Natural Science Foundation of China (Nos. 10902020 and 10721062)

Improved precise integration method for differential Riccati equation

Qiang GAO1, Hu-jun TAN2, Wan-xie ZHONG1, Hong-wu ZHANG1   

  1. 1. State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Faculty of Vehicle Engineering and Mechanics, Dalian University of Technology, Dalian 116024, Liaoning Province, P. R. China;
    2. School of Aeronautics and Astronautics, Dalian University of Technology, Dalian 116024, Liaoning Province, P. R. China
  • Received:2012-09-20 Revised:2012-10-18 Online:2013-01-03 Published:2013-01-03
  • Contact: Hong-wu ZHANG E-mail:zhanghw@dlut.edu.cn
  • Supported by:

    the National Natural Science Foundation of China (Nos. 10902020 and 10721062)

摘要: An improved precise integration method (IPIM) for solving the differential Riccati equation (DRE) is presented. The solution to the DRE is connected with the exponential of a Hamiltonian matrix, and the precise integration method (PIM) for solving the DRE is connected with the scaling and squaring method for computing the exponential of a matrix. The error analysis of the scaling and squaring method for the exponential of a matrix is applied to the PIM of the DRE. Based on the error analysis, the criterion  for choosing two parameters of the PIM is given. Three kinds of IPIMs for solving the DRE are proposed. The numerical examples show that the IPIM is stable and gives the machine accuracy solutions.

关键词: best approximation, coincidence, fixed point, topological vectorspace

Abstract: An improved precise integration method (IPIM) for solving the differential Riccati equation (DRE) is presented. The solution to the DRE is connected with the exponential of a Hamiltonian matrix, and the precise integration method (PIM) for solving the DRE is connected with the scaling and squaring method for computing the exponential of a matrix. The error analysis of the scaling and squaring method for the exponential of a matrix is applied to the PIM of the DRE. Based on the error analysis, the criterion  for choosing two parameters of the PIM is given. Three kinds of IPIMs for solving the DRE are proposed. The numerical examples show that the IPIM is stable and gives the machine accuracy solutions.

Key words: best approximation, coincidence, fixed point, topological vectorspace

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