查询词典 optimal control

In this paper,we have presented an autonomous guidance strategy based on optimal states feedback technology.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.

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。

Experiment results indicate the more desirable orange-pomace bread can be produced if the orange pomaces are not washed in water, the sample is oven-dried and the particle diameter distribution of the orange pomaces in use is less than 250 μm. Due to the fact that the water-absorption ability of orange pomaces is strong, we may want to mix pomaces with the oil of the recipe first during the process of making orange-pomace bread and add the mixture later to the formation of the structure of gluten. Under the condition that orange pomaces account for 14% of the ingredients, the adjusted optimal condition calls for extra 2% of oil, 3% of water and 4% of gluten, the amount of yeast is increased to 2% and the fermentation time is 2 hours. The orange-pomace bread made under this condition has a specific volume of 5.19 cm3/g and receives a rating of 9.5 point. It is close to the American-style sweat bread of the control group. It is also found that the addition of orange pomaces can help slow down the rise in hardness, gumminess and chewyness of the bread during the time it is in storage.

实验结果显示，柳橙果渣於制备过程不经过清水漂洗、利用烘箱乾燥样品、使用粒径分布尺寸小於250 μm之柳橙果渣对於制作柳橙果渣面包有较理想之结果，另外由於柳橙果渣吸水性强，於制作果渣面包时需将柳橙果渣先与配方中之油脂混合，待面团搅拌成筋后再加入。14%柳橙果渣添加量下，配方上调整的最适条件为额外添加2%油脂、3%水量、4%面筋，并将酵母量增加为2%，发酵时间为2 h，所制作出之柳橙果渣面包比体积为5.19 cm3/g，评分为9.5分，接近控制组美式甜面包，并且发现添加果渣制作面包可以减缓面包於储藏期间硬度、胶性度、咀嚼度上升之程度。

For this reason, an optimal automatic timing control algorithm is proposed, that can restrain the switching frequency in a certain range to achieve the purpose of high efficiency and energy conservation. Taking such factors as inductive reactance at AC side, switching frequency, harmonic distortion rate and switching loss as well as the interaction among them into consideration, the formulas for inductive reactance and switching frequency are given; then by use of digital signal processor TMS320F2812, a prototype based on the proposed algorithm is implemented, and using this prototype the effectiveness and practicality of the proposed method are verified by experimental research and simulation.

文章提出了自动定时控制的优化算法，将开关频率限定在一定范围内，以达到高效节能的目的；综合考虑交流侧感抗、开关频率、谐波畸变率和开关损耗等指标，提出了主电路电感参数和开关频率的选择公式，并采用TMS320F2812数字信号处理器构造了试验样机，进行仿真和试验研究，其结果证明了该方法的有效性和实用性。

Simulation results of autonomous maintenance optimal output feedback control for 3-dimension orbit initial error status are shown.

一般情况下最优控制律的实现是需要变推力发动机的，在没有变推力发动机的情况下，本文特别给出并验证了用冲量等价的方法实现变推力发动机替代的可行性。

Its process mathematical description is illustrated through a typical binary distillation column design. Then the framework and strategy of solving the optimal design and control, which involve the solution of mixed integer dynamic optimization, are presented.

以典型二元精馏塔设计为例阐述了其过程系统的数学描述，给出其最优工艺设计和控制设计的求解框架和求解策略，以及其中混合整数动态优化问题的求解方法。

It is well-known that the generalized inverses of a matrix have wide applications in many areas such as differential and integral equations, operator theory, statics, optimal theory, control theory, Markov chains and etc.

众所周知，矩阵广义逆在许多领域中有广泛应用，如在微分和积分方程、算子理论、统计学、控制论、Markov链、最优化等。

Firstly, the strict-feedback nonlinear systems with unknown virtual control coefficients bi have been studied and the problem of its inverse optimality has been solved, that isThe new solvable theorem of inverse optimal gain assignment problem has been proposed through the method of modular design for the original system.

本论文的内容安排如下：第一部分把上述严格反馈系统进一步推广为具有未知虚拟控制系数bi的严格反馈系非线性统并研究其逆最优问题，即第二部分对于推广之前的系统利用模块设计方法提出新的逆最优增益配置定理。

This paper applies GA-BP optimal algorithm to solve the problem of coordinate inversion in Robot's control.

但BP网络易形成局部极小值而得不到整体最优，缺乏全局搜索性。

In chapter four the realtime integrated optimal operation of reservoir and canal irrigation systems under limited water supply is studied based on self-tuning adaptive control theory.

第四章基于自校正自适应控制的思想，研究了有限供水条件下水库与田间配水整合实时优化调度模型。

The optimal model for intelligent isolated structure is set up. The various earthquake responses of intelligent isolated structure get better control after it is optimized with IHGA.

建立智能隔震结构的优化设计模型，对混合方案3进行优化设计，各项地震反应均得到更好地控制。

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。