| 液压位置系统的时间序列分析 |
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| 引用本文： | 熊宇飞,张国贤,陆元章.液压位置系统的时间序列分析[J].上海交通大学学报,1988(2). |
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| 作者姓名： | 熊宇飞 张国贤 陆元章 |
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| 作者单位： | 上海交通大学机械工程系
(熊宇飞，张国贤)，上海交通大学机械工程系(陆元章) |
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| 摘 要： | 本文讨论了用CAR时间序列模型来辨识液压系统的阶和参数。文中提出了AIC定阶准则和辅助变量法结合,来确定模型阶和参数的方法,进一步根据估计参数的渐近正态性确定模型的子阶和时滞。文中应用该方法辨识了液压位置系统的阶和参数。仿真和实测阶跃响应比较,证明得到的辨识模型是有效的。
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| 关 键 词： | 时间序列分析 系统辨识 液压系统 辅助变量法 |
Time Series Analysis of Hydraulic Position System |
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| Xiong Yufei Zhang Guoxian Lu Yuanzhang.Time Series Analysis of Hydraulic Position System[J].Journal of Shanghai Jiaotong University,1988(2). |
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| Authors: | Xiong Yufei Zhang Guoxian Lu Yuanzhang |
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| Institution: | Xiong Yufei Zhang Guoxian Lu Yuanzhang |
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| Abstract: | This paper discusses the order and parameter identification of hydraulic
system by time series CAR.The cooperation of instrumental variable and AIC
criterion is proposed here to determine the order and parameter of the model.The
suborder and delay of the model are determined according to the asymptotically
Gaussian distribution of estimated parameter.This method is applied to identify
the order and parameter of hydraulic position system.The effectiveness of the
identified model is illustrated by simulation step response in comparison with
measured step response. |
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| Keywords: | time series analysis system identification hydraulic system instrumontal variable method |
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