查询词典 iterative

An iteration procedure for improving design variables is constructed by this optimality criterion, and a factor is also employed to control the step size in order to make the iterative process be stable.

根据导出的优化准则构造出一种修改设计变量的迭代格式，其中引入松弛因子以保证收敛过程的稳定，并在每次迭代开始前都利用射线步把设计点引至可行域的边界上。

Especially for multifrequence problems, both the order for the approximation of nonlinear functions and the iterative numbers for neural network learning will be decreased by several times.

利用这种新方法可以直接分析、辨识线性系统、双线性系统的稳定性和未知参数，并可直接求取性能指标下的最优控制律。

Simulation results show that ordinal check with degressive iterative number is optimal, which can effectively decrease the complexity and acquisition time.

仿真结果表明顺次迭代且迭代次数递减的校验方法最优，该方法能够在不损失检测概率的情况下降低Gold码捕获的复杂度，同时降低其捕获时间。

It is devised based on iterative curve fitting where orthogonal polynomials are used.

这种算法设计利用基于正交多项式的迭代曲线拟合，可以在没有人为干预的情况下自动处理吸收和发射光谱。

The Iterative Learning Control must be used on a repeatable or a peridocital system. By using motion time and iteration times as the two orthogonal vectors, a two-dimensional control system is construct, which can discribe the attribute of the dinamic behavior and learning process completely.

反覆式学习控制必须应用於具有反覆性或周期性的系统，文中将以运动时间与学习次数作为二正交向量来架构二维控制系统，使其能够完整的描述控制系统本身的动态行为与学习过程的特性。

The former is an iterative method, and quaternion was utilized to simplify the matrix orthogonalization procedure.

改进的单点估计算法是一种迭代算法，它计算简单，收敛速度快，同时由于采用四元数表示姿态矩阵，简化了矩阵的正交化过程。

With Overrelaxation Iterative Method for second-order partial differential equations.

用超松弛迭代法求解二阶偏微分方程。

With Overrelaxation Iterative Method for second-order partial differenti...

用超松弛迭代法求解二阶偏微分方程。得到电场的分布。

This paper improves the iterative format of the symmetric successive overrelaxation PCG method,as a result the computation is reduced by 8%～50%.This paper also presents some key subroutines for application of the SSOR PCG method to the solution of finite element equations.

本文改进了对称逐步超松驰预处理共轭梯度法的迭代格式，可节省计算量8％～50％，并给出应用SSORPCG法求解有限元方程组时的几个关键子程序。

If the pattern has a low rate of convergence, the time of the human and machines will be wasted and the answer are not surely attainable.So,we must look for the patterns with the high rate of convergence or try to settle some parameters of the iteration patterns (for instance the overrelaxation parameter of SOR iterative method).

本文第二章针对AOR迭代法考察了当线性方程组的系数矩阵A为(1，1)相容次序矩阵且其Jacobi特征值为纯虚数或零时的迭代收敛范围，最优参数(即最优松弛因子和最优加速因子)及与之相应的谱半径，并将此最优谱半径与相应的SOR的进行比较，定量的给出在不同条件下，AOR和SOR迭代法各有其优越性，从而圆满的解决了在这两种迭代法之间如何适当的选择最佳迭代法的问题。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。