凸多面体

The problem of robust H∞ state feedback controller design for the generalized continuous time systems with time-varying delays in states and control inputs and parameter uncertainties residing in a polytope were investigated.

针对一类具有状态滞后、输出滞后和凸多面体不确定性的连续时间系统，研究了时滞依赖型鲁棒H∞控制器的设计问题。

In the third chapter, we assume the expected returns of the risky and risk-free assets as well as the covariance matrix of the risky assets are not exactly known, but defined by some known elements, which form the vertices of this polytope. We consider three problems, the first one is when there exists no risk-free asset in the

第三章假设风险资产和无风险资产的收益以及风险资产的协方差矩阵不是完全确定的，其相关参数属于某个已知的凸多面体，分别在市场不存在和存在无风险资产的情况下定义了稳健最优投资组合问

In this paper we assume the expected returns of the risky and risk-free assets as well as the covariance matrix of the risky assets are not exactly known, but defined by some known elements, which form the vertices of this polytope. Robust optimal portfolio problems are proposed in the market with and without risk-free asset. And the analytical solutions are given out when the covariance matrix of the risky assets are exactly known.

本文假设风险资产和无风险资产的收益以及风险资产的协方差矩阵不是完全确定的，其相关参数属于某个已知的凸多面体，分别在市场不存在和存在无风险资产的情况下定义了稳健最优投资组合问题，并在协方差矩阵确定的情况下给出了问题的解析解。

By using Taylor series approximation and convex polytope technique, exponential uncertain discrete-time switched linear system is transformed into an equivalent switched polytopic model with an additive norm bounded uncertainty.

利用泰勒级数逼近和凸多面体技术，将上述系统转化为等价的具有模有界的多项式不确定模型。

The problem of robust H 2 /H∞ optimal control for polytopic continuous systems was considered.

研究凸多面体不确定连续系统的鲁棒H_2/H_∞优化控制问题。

The design problem of gain-scheduled H2/H(subscript ∞) filter for polytopic discrete-time systems is investigated.

研究凸多面体不确定离散时间系统的变增益H2/H滤波器设计问题。

By applying the filter on polytopic uncertain system, the vertex-dependent Lyapunov functions can be adopted to deliver a less conservative result.

当将其应用于具有凸多面体不确定性的网络控制系统时可以得到和系统不确定性相关联的Lyapunov函数，有效降低了设计的保守性。

By analyzing the basic functions of vehicle active suspension, the vibration control for these systems is mathematically translated into a multi-objective control problem for polytopic uncertain systems.

首先在分析汽车主动悬架的基本功能的基础上，将主动悬架的振动控制在数学上表述为一个凸多面体系统的多目标控制问题。

A practical and general failure model of actuator and sensor is considered by using convex polytopic uncertainties to describe control surface impairment.

通过凸多面体不确定性来描述控制系统表面故障，采用了更为一般、更符合实际的故障模型来描述执行器和传感器故障。

To overcome this drawback, a predictive control algorithm based on nominal objective function is presented. For polytopic uncertain systems with both state and input delays, a saturating state feedback predictive control algorithm is also investigated.

考虑到输入时滞的存在，针对凸多面体不确定状态和输入时滞系统，进行了带有饱和特性的状态反馈预测控制研究。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。