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uncertainty of system
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  系统的不确定性
     According to geology, development factors, as well as relativity, the uncertainty of system was quantized using fuzzy comprehensive judgement method and expert NN, thus, the remaining oil distribution was plotted.
     依据地质、开发因素及相关性,利用多次模糊综合评判法和专家神经网络量化处理了系统的不确定性,绘制出剩余油的平面分布。
短句来源
     The research objects of modern management and decision-making are often very complicated whose properties are shown often unclearly and incompletely, and people needs to inspect the associated mass data, to seek their intrinsically contradictions and find the potential laws and to draw the rules to value the uncertainty of system. Then the suitable decision can be drawn up out based on these foundations.
     现代管理决策面临的研究对象往往十分复杂,其性质展示常不够明显和充分,需要考察庞大的相关数据,从大量数据中寻求其固有矛盾,发现其潜在规律,提取规则,对系统的不确定性作出评估,在此基础上才能拟定出适宜的决策。
短句来源
     Sliding mode variable structure control(SMVSC) is a special nonlinear control strategy, which has strong robustness against parameter variations, load disturbances and uncertainty of system.
     滑模变结构控制 (SMSVC)是一种特殊的非线性控制策略 ,它对参数变化 ,负载扰动以及系统的不确定性有强的鲁棒性 .
短句来源
     According to uncertainty of system,using the QFT the feedback controller and frontfixed filter are designed. The experiment results show when the system parameter changes,the system can still maintain excellent following ability.
     针对系统的不确定性采用QFT设计反馈控制器和前置滤波器,仿真结果表明,当系统参数发生变化时,系统仍然能够保持良好的跟踪性能。
短句来源
  “uncertainty of system”译为未确定词的双语例句
     For the tracking of multi-machine electric power systems (MMEPS) excitation control and uncertainty of system parameters with nonlinear loads, the related feedback linearization techniques of nonlinear differential algebraic systems (NDAS) are adopted, the normal control equations with corresponding electromagnetic power as output are obtained, and the expressions of nonlinear control law are given.
     针对具有非线性负荷的多机电力系统(MMEPS)励磁控制的跟踪和系统参数的不确定,采用非线性微分代数系统(NDAS)的反馈线性化技术,得到相应的以电磁功率作为输入量的标准化控制方程,并给出相应的非线性控制规律的表达式;
短句来源
     Since the information entropy represent uncertainty of system or degree of disorder, the reliability entropy models of support system in mines and calculation method are set up, which express an average reliability of system.
     根据信息熵是系统不确定或无序程度的原理,建立了矿井支护系统可靠熵模型与计算方法,它是系统平均可靠性的度量。
     The system hardware is implemented by Digital Signal Processing (DSP) chip to ensure real-time performance of system, while software is formed by fuzzy-neural networks to overcome uncertainty of system model.
     该系统硬件采用了数字信号处理芯片,以保证系统的实时性,软件采用了模糊-神经网络算法以克服系统模型的不确定性。
短句来源
     Simulation results show that the controller can overcome the uncertainty of system model, the close-loop system is robust and insensitive to change of parameters.
     仿真结果表明,该控制器较好地克服了系统模型的不确定性,闭环系统对参数扰动不敏感,具有较强的鲁棒性。
     H_∞ robust control theory was used to design a supplementary subsynchronous damping controller (SSDC), the variation of system magnitude-frequency characteristics caused by the variation of inverter AC short-circuit impedance and the change of inverter control modes are considered as the uncertainty of system model, and the design of SSDC can be converted to a problem of mixed sensitivity in H_∞ robust control theory.
     运用H∞鲁棒控制理论设计了直流附加次同步阻尼控制器(SSDC),把逆变侧交流短路阻抗变化、逆变站控制方式的改变以及系统运行条件变化所引起的系统模型幅频特性的差异,看作系统模型的不确定性,把控制器的设计归结为H∞鲁棒控制理论中混合灵敏度问题的求解.
短句来源
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  相似匹配句对
     The Uncertainty of Translation
     翻译的不确定性问题
短句来源
     On Uncertainty of Education
     论教育的不确定性
短句来源
     Uncertainty in measurement
     测量不确定度
短句来源
     Error and uncertainty
     误差与不确定度
短句来源
     Uncertainty in Experts System
     专家系统中的不确定性
短句来源
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An advanced first order second moment method for solving the integration PF=∫x Pf(X)f(X)dX is proposed in this paper. It can be used in the time-variant reliability problem considering uncertainties of system parameters or the general reliability problems considering system uncertainties. Two examples using the proposed method are given and the effect of parameter uncertainties on reliability is discussed. It has been proved that the proposed method has advantages both in computing efficiency...

An advanced first order second moment method for solving the integration PF=∫x Pf(X)f(X)dX is proposed in this paper. It can be used in the time-variant reliability problem considering uncertainties of system parameters or the general reliability problems considering system uncertainties. Two examples using the proposed method are given and the effect of parameter uncertainties on reliability is discussed. It has been proved that the proposed method has advantages both in computing efficiency and precision.

本文首先将考虑系统不确定性的可靠度问题归结为P_x=∫_xP_f(X)f(X)d(X)的积分形式,然后提出了求解该积分的一个推广的一次二阶矩方法。该方法方便实用,具有较高的精度,可以用于时变荷载下考虑系统参数不确定性的可靠度分析以及一般的考虑系统不确定性的可靠度分析。最后给出了应用的实际算例并讨论了系统不确定性对可靠度的影响。

The multi-modal robust adaptive controller is designed under minimal priorknowledge of a class of controlled systems with structural uncertainty. We have set upthe regulation rules of controller structure by means of the structural feature states ofsystems. The structure parameter correction of controller has been put forward in orderto compensate the equivalent disturbance coming from the structural uncertainty of systems. The theoretical work has been tested by simulations.

针对一类结构不确定系统,在最小的系统先验假设下构造了一种多模态鲁棒自适应控制器。该控制器通过引入系统状态特征量和对系统运行特征进行划分,建立了控制器模态的调整规则,并提出了系统结构参数修正的概念.从而补偿受控系统结构摄动引起的扰动效应。仿真结果表明了上述算法的有效性。

The design approach to robust H ∞ state estimator for linear systems with energy bounded exogenous noise inputs and structural uncertainties solved via three linear matrix inequalities(LMIs) is presented. This approach is better than conventional one based on algebraic Riccati equations(AREs) while dealing with the uncertainties of systems. The application of the design technique of robust H ∞ state estimation in inertial navigation systems (INS) ground alignment shows that robust H...

The design approach to robust H ∞ state estimator for linear systems with energy bounded exogenous noise inputs and structural uncertainties solved via three linear matrix inequalities(LMIs) is presented. This approach is better than conventional one based on algebraic Riccati equations(AREs) while dealing with the uncertainties of systems. The application of the design technique of robust H ∞ state estimation in inertial navigation systems (INS) ground alignment shows that robust H ∞ state estimation based on LMIs has more optimal performance than conventional H 2 estimator.

给出了基于线性矩阵不等式(LMI)的鲁棒H∞状态估计器的设计过程。该方法克服了基于代数Riccati方程(ARE)中处理不确定性的限制,整个设计过程完全通过求解三个LMI得到,简化了设计过程。在惯性导航系统(INS)地面自对准中的应用表明,基于LMI的鲁棒H∞状态估计器在系统具有不确定性时,仍然能使估计误差保持收敛,优于传统的性能状态估计。

 
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