最优法

To weaken the influences of the position-dependent periodic disturbances and parameter uncertainties, the robust repetitive controller was designed, which associated structure singular value theory with the discrete-time repetitive control theory. The problem of robust repetitive control was transformed into one of H∞ optimal control using linear fractional transformation. The robust repetitive controller was achieved using D-K iteration procedure and made the servo system have stability, robustness and tracking performance.

为了削弱周期性扰动及参数变化不确定性的影响，将重复控制和结构奇异值理论相结合，利用线性分式变换(linear fractional transformation，LFT)将鲁棒重复控制问题转换成H∞最优控制问题，采用D-K迭代法设计鲁棒重复控制器(robust repetitive controller，RRC)，实现系统的稳定性和鲁棒性，提高系统的跟踪特性。

The first is refered to the vibration model with retardation for the market equilibrium price, where the knowledge of the second order linear ordinary differential equation is used. The second is refered to the optimal pricing model of the price under the frame of the social welfare, where the concept of the definite integral is exploited.

第一个是研究市场调节下平衡价格的阻尼振荡模型，使用了二阶线性常系数微分方程的课程知识；第二个是在引进社会福利因素时商品的最优定价模型，使用了定积分和微分法的课程知识。

Rosen projective gradient method is used to find the approximated KKT points of relaxed problem, and then the index set is updated until the minimal solution is .

本文采用Rosen 投影梯度法求此松弛问题的近似KKT点，然后更新指标集不断迭代直至得到最优解。

The same way can be used to find the value of n in the method of multi-time moving average.

用同样的方法可以寻找2次或更多次移动平均法中的最优移动步长n。

The same way can be used to find the value of n in themethod of multi-time moving average.

用同样的方法可以寻找2次或更多次移动平均法中的最优移动步长n。

Two examples are provided (one of them is proposed by the authors, and its optimal solution is known). The numerical results show that the DAGA is effective and superior to multiplicator algorithm.

文章给出两个算例(其中一个为作者构造的已知最优解的算例)，计算结果表明了此算法的有效性，并且优于数学规划的乘子法的计算结果。

Mutual information for the optimal sequence delay, we hope that the right useful.

互信息法求混沌序列的最优时延，希望对大家有用。

The constrained complex method is one of the important ways to resolve the problem of nonlinear optimization.

约束复合形法是求解约束非线性最优问题的一种重要方法。

Then the necessary conditions of optimal control problem is obtained by the conception of normal cone.

由法锥概念得到了控制问题的最优必要条件。

Chet - Kolmogorov theorem,then obtains a necessary condition of the optimal solution to the nonlinear control problem according normal cone principle.

然后利用法锥理论得到了最优解存在的必要条件。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。