| 线性时变参数识别与非线性因素估计 |
| |
| 引用本文： | 梁艳春,王在申,甄强.线性时变参数识别与非线性因素估计[J].吉林大学学报(理学版),1994(3). |
| |
| 作者姓名： | 梁艳春 王在申 甄强 |
| |
| 作者单位： | 吉林大学数学系，中国科学院沈阳计算研究所现代制造ＣＡＤ／ＣＡＭ开放实验室 |
| |
| 基金项目： | 国家教委留学回国人员资助费支持课题 |
| |
| 摘 要： | 本文讨论了利用非线性时不变振动系统的响应，根据线性模型识别出的线性参数的时变性质判断非线性项的存在、估计系统非线性因素的问题．大量的算例表明，据此判断非线性项的存在是可行的．文中还分析了利用具有非线性项的时变系统的响应，根据线性系统模型识别线性时变参数的问题．模拟计算表明，利用非线性系统的响应籍助线性模型，可以在相当大的范围内较好的识别出系统的线性时变参数。
|
| 关 键 词： | 时变参数识别，非线性振动系统，物理参数 |
Identification of Linear Time Varying Parameters and Estimation of Non-linearities |
| |
| Liang Yanchun.Identification of Linear Time Varying Parameters and Estimation of Non-linearities[J].Journal of Jilin University: Sci Ed,1994(3). |
| |
| Authors: | Liang Yanchun |
| |
| Abstract: | The existence of the non-linearities and the estimation of the time varying linearparameters were examined using the linear model and the data from non-linear systems. Alot of simulated experiments showed that it is possible to determine the existence of the non-linearities by means of the time varying characteristics of the estimated linear parameters us-ing the linear model and the data from a time invariant non-linear system. The linear param-eters can be identified within a certain range employing a linear model and the responses of atime varying non-linear system. |
| |
| Keywords: | time varying parameter identification non-linear vibration system physical pa- rameter |
| 本文献已被 CNKI 等数据库收录！ |
