| 一种改进的动态测量系统灰色建模方法 |
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| 引用本文： | 汉泽西,甘志强.一种改进的动态测量系统灰色建模方法[J].电测与仪表,2009,46(2). |
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| 作者姓名： | 汉泽西 甘志强 |
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| 作者单位： | 西安石油大学电子工程学院,西安,710065 |
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| 摘 要： | 针对动态测量系统具有时变性和测量过程中受到各种随机干扰的情况,将动态测量过程看作是灰色过程和随机过程的统一体.采用传统灰色模型提取测量序列趋势项,然后建立ARMA模型对残差进行拟合修正,并以模型参数随时间不断变化的方式对动态测量系统建立数学模型.实际算例证实,改进的灰色动态建模方法不仅具有快速性、准确性和平稳性的特点,模型精度较传统动态灰色模型也有一定提高.另外,该建模方法也同样适用于静态或准静态测量系统建模,有较好的适应性.
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| 关 键 词： | 动态测量 灰色理论 数学模型 静态测量 |
An Advanced Grey Modeling Method of Dynamic Measurement System |
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| HAN Ze-xi,GAN Zhi-qiang.An Advanced Grey Modeling Method of Dynamic Measurement System[J].Electrical Measurement & Instrumentation,2009,46(2). |
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| Authors: | HAN Ze-xi GAN Zhi-qiang |
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| Abstract: | Aiming at the time-variant of dynamic measurement system and different kinds of random disturbance in measuring process,a dynamic model based on grey and ARMA theory is presented.The GM(1,1) model is considered firstly to draw the trend equation from the subsequence sequence,then the ARMA model is used to predict and correct the model residuals,and the changing of model parameters with time is used to described dynamic characteristics of the system.Practical calculation example has proved that the advanced ... |
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| Keywords: | ARMA |
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