查询词典 optimal control

First, by utilizing classical Gauss motion equations, we derived the three separate control laws, which could maximize the time rate of change of a desired orbital element. Then, the separate control laws were blended based on the deficit between current and target value of orbital state. Finally, to obtain the optimal guidance law effectively and reliably, a hybrid method combining genetic algorithm with sequential quadratic programming was used to optimize the weight values.

首先利用传统Gauss型运动方程，推导出三个轨道根数增大最快的独立控制律；然后根据当前根数与目标值的偏差量对独立控制律进行加权组合；最后为高效可靠地获得最优制导律，采用一种遗传算法和逐次二次规划相结合的混合方法对权重进行了优化。

By the performance indexdr, We proposed in thispaper a new algorithm for the feedforward optimal gauge control of a steel stripmill. By this algorithm the control is the integral of gauge deviation weighted by hyperbolic cosine.

本文根据有限时间区间的厚差信息，利用有限时间二次型指标，提出一种新的带钢轧机厚度前馈最优控制，这一控制为厚差按双曲线余弦加权积分算法。

The LTR of centralized multivariable control systems is then generalized to decentralized control large-scale interconnected systems by H∞ optimal theory. The difficulty to compute the infimum of H∞-norms of recovery matrices in the set of all possible gains of decentralized observers is avoided.

基于H∞理论，将多变量系统的回路传递再生方法推广于分散控制关联大系统，并避免了在所有可能的分散观测器增益构成的集合上，直接计算再生矩阵的H∞范数下确界的困难。

The emphases of this thesis are put on the computation methods of seepage in dike, the applicable conditions of seepage control measures (including vertical cutoff wall, overburden soil layer at landside of dike, relief well, and so on), and optimal design of these seepage control measures.

本文重点在于研究堤防渗流计算方法，探讨垂直防渗墙、盖重压渗和减压井等渗流控制措施的适用条件，以及这些渗控措施的优化设计。

In this paper, we use artificial fields to steer and control the steering angle and derive a linear velocity control law to guarantee the optimal convergent trajectory.

该文通过建立人工场的方法来引导和控制方向角，通过辅助的线速度控制前进或后退，以获取最佳收敛路径。

State-of-the-art 32 bit Electronic Control Unit ensures precisely metered fuel delivery and optimal ignition spark control using 3D mapping for each cylinder to provide maximum performance and response at all rpms.

国家最先进的32位电子控制单元，确保准确计量燃料运送和最佳点火火花控制使用的3D地图定位为每个气缸提供最高性能和应对所有从RPMS 。

To realize the predicative optimum control of a system, the key of the problem is how to predicate the states of the system in the coming time space accurately and quickly and then use the predicated results and the optimal indexes to control the related system variables. A lots of study works in this aspect have been done. But there are still many short-comings. This paper proposed a method by which the scale of the predicted variables set could be reduced.

为了实现系统的预测最优化控制，问题的关键是如何准确而迅速地对未来一段时间内的系统状态进行预测，然后利用此预测结果及优化指标来控制有关系统变量，人们对此进行了许多研究，但尚有其不足之处。

Using inclination vector as a non-singular orbital element, engineering oriented mathematical models for inclination control of geosta- tionary orbit are established,and unified optimal strategies for inclination control both in north-south station aquisition and north-south station keeping derived.

本文以倾角矢量作为无奇点轨道要素，建立静止卫星轨道倾角控制的工程实用数学模型，进而导出南北定点捕获和南北位置保持两种情况下统一的倾角控制燃料最优策略。

As a new control means, nonlinear optimal excitation control can improve effect of percussive load on stability of power system effectively.

提出用大型发电机的非线性最优励磁控制这种新型的控制手段，抑制冲击负荷的影响。

Control chaos ; targeting chaos ; optimal feedback control ; parameter perturbation

控制混沌；引导混沌；最优反馈控制；参数扰动

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。